The intensification of the pig industry requires the breeding of highly productive young animals capable of providing high-growth energy under good conditions of maintenance and full feeding. Full feeding of suckling piglets in most farms of Ukraine is provided by pre-starter compound feeds of imported production, which leads to an increase in the cost price of pork. In addition, the traditional sources of trace elements in these compound feeds are mineral salts in the form of sulfate and chloride compounds, the bioavailability of which is 12–35 %, which leads to environmental pollution with heavy metals, and the crystallized water contained in sulfate molecules in the premixes destroys vitamins and other biologically active substances. The degree of assimilation of trace elements increases with the use of feed additives with trace elements of organic origin. Representatives of such feed additives are mixed ligand complexes of trace elements (chelates). Taking into account the fact that suckling piglets need Ferrum addition to mother's milk and a sufficient amount of Cuprum on the 4–5th day of life since Cuprum catalyzes the incorporation of Ferrum into the heme structure and is an indispensable activator of hemoglobin synthesis and a stimulator of erythrocyte maturation, the study of the action of this element in the composition of a mixed ligand of the complex in the pre-starter compound feed is relevant. In addition, the study of the economic and economic significance of the use of the mixed ligand complex of Cuprum in the feeding of suckling piglets, the establishment of optimal norms of this supplement taking into account the breed and parent age, has an important scientific and practical significance. The domestic and foreign experience of effective pig farming shows that the realization of the hereditary qualities of modern high-performance pig breeds and obtaining ecologically clean products is possible only under the condition of the development and implementation of perfect technologies for the production of pig farming products, which must be consistent with the biological needs of animals.
{"title":"Productivity of pigs under the conditions of introduction of the additive of the mixed ligand complex of Cuprum","authors":"V. Jun, T. Farionik","doi":"10.32718/nvlvet-a9822","DOIUrl":"https://doi.org/10.32718/nvlvet-a9822","url":null,"abstract":"The intensification of the pig industry requires the breeding of highly productive young animals capable of providing high-growth energy under good conditions of maintenance and full feeding. Full feeding of suckling piglets in most farms of Ukraine is provided by pre-starter compound feeds of imported production, which leads to an increase in the cost price of pork. In addition, the traditional sources of trace elements in these compound feeds are mineral salts in the form of sulfate and chloride compounds, the bioavailability of which is 12–35 %, which leads to environmental pollution with heavy metals, and the crystallized water contained in sulfate molecules in the premixes destroys vitamins and other biologically active substances. The degree of assimilation of trace elements increases with the use of feed additives with trace elements of organic origin. Representatives of such feed additives are mixed ligand complexes of trace elements (chelates). Taking into account the fact that suckling piglets need Ferrum addition to mother's milk and a sufficient amount of Cuprum on the 4–5th day of life since Cuprum catalyzes the incorporation of Ferrum into the heme structure and is an indispensable activator of hemoglobin synthesis and a stimulator of erythrocyte maturation, the study of the action of this element in the composition of a mixed ligand of the complex in the pre-starter compound feed is relevant. In addition, the study of the economic and economic significance of the use of the mixed ligand complex of Cuprum in the feeding of suckling piglets, the establishment of optimal norms of this supplement taking into account the breed and parent age, has an important scientific and practical significance. The domestic and foreign experience of effective pig farming shows that the realization of the hereditary qualities of modern high-performance pig breeds and obtaining ecologically clean products is possible only under the condition of the development and implementation of perfect technologies for the production of pig farming products, which must be consistent with the biological needs of animals.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41912870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Products of plant origin, recommended as permanent components of the daily human diet, are rich in vitamins, minerals, plant fibers, as well as various active phytochemicals (polyphenols, flavonoids) and sterols, which have a low calorie content. According to the results of epidemiological and clinical studies, it has been established that the risks of various pathologies are reduced when using a diet that is balanced in terms of nutrients, rich in vegetable fiber and food products of plant origin. The evolution of food technology has led to the appearance on the shelves of Italian supermarkets of products defined as “ready foods” or products – semi-finished products of high quality and safety, which present all the characteristics of freshness, similar to products that have just been harvested. They also include products of vegetable origin, which belong to the fresh-cut category. A limited technological elaboration is applied to this category of products, after which they can be used without further manipulation before consumption. The products of vegetable origin of fresh-cut vegetable have the definition of "potentially dangerous products" due to their possible contamination with pathogenic microorganisms such as Escherichia coli, Salmonella spp. and Listeria monocytogenes. These pathogens very often contaminate fresh-cut vegetable, causing food poisoning in consumers. The main sources of pathogenic contamination by the causative agents of human intestinal infections are the water used for watering plants and exposure to inappropriate temperatures during the storage of plant products. The decisive aspect, without a doubt, remains the sanitary and hygienic characteristics of the product at the time of its consumption. It is fundamental to deepen our knowledge about the transmission, resistance, and growth mechanisms of pathogenic microorganisms in products of the IV range. This will allow the establishment of sampling norms for express diagnostics to reduce the possibility of low-quality products reaching the consumer.
{"title":"The level of discreteness of the signs of the own productivity of repair pigs and the reproductive qualities of sows of different breeding value: criteria for the selection of highly productive animals according to the BLUP index","authors":"V. Khalak, B. Gutyj","doi":"10.32718/nvlvet-a9809","DOIUrl":"https://doi.org/10.32718/nvlvet-a9809","url":null,"abstract":"Products of plant origin, recommended as permanent components of the daily human diet, are rich in vitamins, minerals, plant fibers, as well as various active phytochemicals (polyphenols, flavonoids) and sterols, which have a low calorie content. According to the results of epidemiological and clinical studies, it has been established that the risks of various pathologies are reduced when using a diet that is balanced in terms of nutrients, rich in vegetable fiber and food products of plant origin. The evolution of food technology has led to the appearance on the shelves of Italian supermarkets of products defined as “ready foods” or products – semi-finished products of high quality and safety, which present all the characteristics of freshness, similar to products that have just been harvested. They also include products of vegetable origin, which belong to the fresh-cut category. A limited technological elaboration is applied to this category of products, after which they can be used without further manipulation before consumption. The products of vegetable origin of fresh-cut vegetable have the definition of \"potentially dangerous products\" due to their possible contamination with pathogenic microorganisms such as Escherichia coli, Salmonella spp. and Listeria monocytogenes. These pathogens very often contaminate fresh-cut vegetable, causing food poisoning in consumers. The main sources of pathogenic contamination by the causative agents of human intestinal infections are the water used for watering plants and exposure to inappropriate temperatures during the storage of plant products. The decisive aspect, without a doubt, remains the sanitary and hygienic characteristics of the product at the time of its consumption. It is fundamental to deepen our knowledge about the transmission, resistance, and growth mechanisms of pathogenic microorganisms in products of the IV range. This will allow the establishment of sampling norms for express diagnostics to reduce the possibility of low-quality products reaching the consumer.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42997366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Hnativ, V. Y. Ivanuk, M. Polukhovych, V. Shestak, Yuriy Olifir, B. I. Kotsuba, D. V. Baranskyy
Nitrogen is a key element for the growth and yield of all crops. Increased doses of nitrogen do not give the expected return, create a danger of leaching of nitrates, activate the emission of nitrous oxide. These problems make it necessary to solve the urgent issue of optimizing nitrogen nutrition using the nitrogen stabilizer nitrapyrin. The purpose of our research under conditions of sufficient moisture in the Western Forest Steppe was to find out the effect of the urease inhibitor on the agrochemical parameters of the dark gray forest podzolized light loam soil, as well as the effect on the yield of winter barley. We conducted field experiments at the Lviv National University of Nature Management. We used traditional methods of field research and standardized methods of laboratory analysis. A positive effect of the use of the nitrogen stabilizer nitrapyrin on the funds of nitrogen, phosphorus and potassium available for nutrition, as well as on the reduction of soil acidity, was established. The highest content of easily hydrolyzable nitrogen was achieved when applying N23P60K60 in autumn + N97 in the phase of vegetation recovery with nitrapyrin – 132 mg/kg of soil. This was 28 mg/kg more than the traditional fertilization system without nitrapyrin (N60P60K60). Application of 120 kg/ha of nitrogen in the form of urea created a reserve 3.3 times higher, and ammonium nitrate created a reserve 3.6 times higher than the unfertilized version. Nitrapyrin, a stabilizer of nitrates, made it possible to limit their formation with the introduction of urea by 3 5%, ammonium nitrate by 10 %. The nitrogen application rate of N120 kg/ha per year led to the annual emission of nitrous oxide in the amount of 121.5 kg/ha. Nitrapyrin limited the amount of nitrous oxide emission by 3.3–7.2 kg/ha, depending on the amount of nitrogen application rate. The use of ammonium nitrate at the rate of N120 when applied in the spring caused the highest level of nitrogen oxide emissions (29.5 kg/ha of soil). However, the application of this fertilizer and inhibitor reduced gaseous nitrogen losses to 25.9 kg/ha when applied to restore vegetation. The introduction of N97 (ammonium nitrate) + N-Lok Max under winter barley during the restoration of vegetation on the background of N23P60K60 under plowing gave the highest average yield in the experiment for 2020–2022 – 7.65 t/ha, for 2022 – 7.90 t/ha. The 3D regression model of winter barley grain yield under the influence of the synergistic effect of both forms of nitrogen illustrates the importance of balancing the funds of forms of this nutrient element in the soil.
{"title":"Optimization of nitrogen fertilizer of the dark-gray soldized soil of the western forest steppe for using nitrification inhibitor","authors":"P. Hnativ, V. Y. Ivanuk, M. Polukhovych, V. Shestak, Yuriy Olifir, B. I. Kotsuba, D. V. Baranskyy","doi":"10.32718/nvlvet-a9828","DOIUrl":"https://doi.org/10.32718/nvlvet-a9828","url":null,"abstract":"Nitrogen is a key element for the growth and yield of all crops. Increased doses of nitrogen do not give the expected return, create a danger of leaching of nitrates, activate the emission of nitrous oxide. These problems make it necessary to solve the urgent issue of optimizing nitrogen nutrition using the nitrogen stabilizer nitrapyrin. The purpose of our research under conditions of sufficient moisture in the Western Forest Steppe was to find out the effect of the urease inhibitor on the agrochemical parameters of the dark gray forest podzolized light loam soil, as well as the effect on the yield of winter barley. We conducted field experiments at the Lviv National University of Nature Management. We used traditional methods of field research and standardized methods of laboratory analysis. A positive effect of the use of the nitrogen stabilizer nitrapyrin on the funds of nitrogen, phosphorus and potassium available for nutrition, as well as on the reduction of soil acidity, was established. The highest content of easily hydrolyzable nitrogen was achieved when applying N23P60K60 in autumn + N97 in the phase of vegetation recovery with nitrapyrin – 132 mg/kg of soil. This was 28 mg/kg more than the traditional fertilization system without nitrapyrin (N60P60K60). Application of 120 kg/ha of nitrogen in the form of urea created a reserve 3.3 times higher, and ammonium nitrate created a reserve 3.6 times higher than the unfertilized version. Nitrapyrin, a stabilizer of nitrates, made it possible to limit their formation with the introduction of urea by 3 5%, ammonium nitrate by 10 %. The nitrogen application rate of N120 kg/ha per year led to the annual emission of nitrous oxide in the amount of 121.5 kg/ha. Nitrapyrin limited the amount of nitrous oxide emission by 3.3–7.2 kg/ha, depending on the amount of nitrogen application rate. The use of ammonium nitrate at the rate of N120 when applied in the spring caused the highest level of nitrogen oxide emissions (29.5 kg/ha of soil). However, the application of this fertilizer and inhibitor reduced gaseous nitrogen losses to 25.9 kg/ha when applied to restore vegetation. The introduction of N97 (ammonium nitrate) + N-Lok Max under winter barley during the restoration of vegetation on the background of N23P60K60 under plowing gave the highest average yield in the experiment for 2020–2022 – 7.65 t/ha, for 2022 – 7.90 t/ha. The 3D regression model of winter barley grain yield under the influence of the synergistic effect of both forms of nitrogen illustrates the importance of balancing the funds of forms of this nutrient element in the soil.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43521857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Providing the population of Ukraine with meat and meat products largely depends on the efficiency of the pig industry, one of the urgent problems of which is the increase in pork production. There are many problematic stages in pig farming, one of which is raising suckling piglets, the complexity of which is determined by a number of physiological features of the development of the body of newborn piglets. During the period of intrauterine development and in the first days of life, piglets receive nutrients exclusively from the sow. Therefore, improving the rations of farrowing and suckling sows in a certain way affects the fertility, growth, and survival of piglets. An important place in this belongs to mineral nutrition. One of the ways to eliminate mineral deficiency in feed is the use of mineral additives. Among the wide arsenal of biologically active substances used to regulate metabolic processes in the body, drugs of complex action are of particular importance. Today, there are relatively inexpensive fertilizers based on natural minerals, which include trace elements and amino acids. The balance of rations in terms of biologically active substances remains an important factor affecting animal productivity. In a number of studies, it has been proven that the use of chelated compounds of microelements as a feed additive ensures better assimilation of metals than when they are introduced into the diet in an inorganic form, which in turn helps to achieve higher productivity in animals, as well as reducing feed costs per unit of production. Therefore, the development of new biotechnological methods of stimulating growth, increasing the percentage of survival of suckling piglets, and improving the reproductive capacity of sows using biologically active substances is relevant. A necessary condition for the normal development of piglets and the recovery of sows in the postpartum period is their full feeding, in particular, balanced feed in terms of macro- and microelements. After all, mineral substances take an active part in metabolic processes, activate the functions of hormones, vitamins, and enzymes, contribute to increased digestibility and utilization of nutrients in diets, better provision of intrauterine development of offspring, the birth of physiologically mature piglets, more intensive growth and development after birth. The significant influence of trace elements on physiological processes is explained by the fact that they are part of the so-called accessory substances: vitamins, hormones, enzymes, and coen-zymes involved in the regulation of vital processes. In addition, they affect the formation of cellular immunity of newborn piglets. In this regard, in recent years much attention has been paid to the study of the influence of various vitamin and mineral supplements of organic origin on the productivity of animals.
{"title":"Ways of growth stimulation of piglets with the help of biologically active drugs","authors":"V. Pohorilska, T. Farionik","doi":"10.32718/nvlvet-a9825","DOIUrl":"https://doi.org/10.32718/nvlvet-a9825","url":null,"abstract":"Providing the population of Ukraine with meat and meat products largely depends on the efficiency of the pig industry, one of the urgent problems of which is the increase in pork production. There are many problematic stages in pig farming, one of which is raising suckling piglets, the complexity of which is determined by a number of physiological features of the development of the body of newborn piglets. During the period of intrauterine development and in the first days of life, piglets receive nutrients exclusively from the sow. Therefore, improving the rations of farrowing and suckling sows in a certain way affects the fertility, growth, and survival of piglets. An important place in this belongs to mineral nutrition. One of the ways to eliminate mineral deficiency in feed is the use of mineral additives. Among the wide arsenal of biologically active substances used to regulate metabolic processes in the body, drugs of complex action are of particular importance. Today, there are relatively inexpensive fertilizers based on natural minerals, which include trace elements and amino acids. The balance of rations in terms of biologically active substances remains an important factor affecting animal productivity. In a number of studies, it has been proven that the use of chelated compounds of microelements as a feed additive ensures better assimilation of metals than when they are introduced into the diet in an inorganic form, which in turn helps to achieve higher productivity in animals, as well as reducing feed costs per unit of production. Therefore, the development of new biotechnological methods of stimulating growth, increasing the percentage of survival of suckling piglets, and improving the reproductive capacity of sows using biologically active substances is relevant. A necessary condition for the normal development of piglets and the recovery of sows in the postpartum period is their full feeding, in particular, balanced feed in terms of macro- and microelements. After all, mineral substances take an active part in metabolic processes, activate the functions of hormones, vitamins, and enzymes, contribute to increased digestibility and utilization of nutrients in diets, better provision of intrauterine development of offspring, the birth of physiologically mature piglets, more intensive growth and development after birth. The significant influence of trace elements on physiological processes is explained by the fact that they are part of the so-called accessory substances: vitamins, hormones, enzymes, and coen-zymes involved in the regulation of vital processes. In addition, they affect the formation of cellular immunity of newborn piglets. In this regard, in recent years much attention has been paid to the study of the influence of various vitamin and mineral supplements of organic origin on the productivity of animals.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48785130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Fijalovych, Y. Kyryliv, B. Barylo, G. А. Paskevych, J. M. Lunyk, O. Petryshak, E. O. Glodyk
This research publication highlights current data on the rational use of feed protein by pheasants, which is related to the physiological needs of chicks in this essential means of nutrition. A thorough analysis of feed used in feeding pheasants at the current stage of development of pheasant breeding was carried out. It has been established that cereals have the most significant distribution. Brief information is provided on various factors affecting the composition, quality, nutritional value, and beneficial effects of the main types of grain feed obtained from different fields for pheasants. These include the technology of growing fodder crops, the composition of the soil, applied fertilizers, the type of crop, the conditions of harvesting and storage of plant products (storage period, processing and heat treatment of raw materials), etc. Features of keeping, feeding, and appropriate care of adult birds are also given. The practical advice of this publication on the specifics of feeding, exceptional care, and technology of raising young animals was considered. Brief information is provided on the general features of the rational and practical use of various protein feeds of plant origin in feeding pheasants – grains of cereal crops: corn, wheat, barley, oats, processed products of oil crops – soybeans, sunflowers, and livestock products, such as meat and eggs. In particular, the peculiarities of providing chicks with exchangeable energy and protein are described as essential indicators of the viability of the young. The practical breeding of pheasants is impossible without the correct use of protein and energy feed. It has been established that providing chicks with sufficient feed, particularly protein, is necessary for the modern technology of successful, promising, engaging, and useful pheasant farming. Suppose the conditions of keeping, care, and feeding of pheasants are violated. In that case, the incidence of disease (especially of young ones) and the survival of chicks increases, negatively affecting the efficiency of the new branch of pheasant farming. In such conditions, stress factors of the external environment, new fodder, internal factors with a sharp change in the environment, feeding, poor microclimate conditions, etc., are the factors that lead to the occurrence of diseases. Therefore, optimizing and creating comfortable conditions for keeping pheasants is an urgent task at the current stage of developing a rather exciting and rich in its subtlety industry – pheasant farming.
{"title":"Peculiarities of keeping pheasants","authors":"L. Fijalovych, Y. Kyryliv, B. Barylo, G. А. Paskevych, J. M. Lunyk, O. Petryshak, E. O. Glodyk","doi":"10.32718/nvlvet-a9821","DOIUrl":"https://doi.org/10.32718/nvlvet-a9821","url":null,"abstract":"This research publication highlights current data on the rational use of feed protein by pheasants, which is related to the physiological needs of chicks in this essential means of nutrition. A thorough analysis of feed used in feeding pheasants at the current stage of development of pheasant breeding was carried out. It has been established that cereals have the most significant distribution. Brief information is provided on various factors affecting the composition, quality, nutritional value, and beneficial effects of the main types of grain feed obtained from different fields for pheasants. These include the technology of growing fodder crops, the composition of the soil, applied fertilizers, the type of crop, the conditions of harvesting and storage of plant products (storage period, processing and heat treatment of raw materials), etc. Features of keeping, feeding, and appropriate care of adult birds are also given. The practical advice of this publication on the specifics of feeding, exceptional care, and technology of raising young animals was considered. Brief information is provided on the general features of the rational and practical use of various protein feeds of plant origin in feeding pheasants – grains of cereal crops: corn, wheat, barley, oats, processed products of oil crops – soybeans, sunflowers, and livestock products, such as meat and eggs. In particular, the peculiarities of providing chicks with exchangeable energy and protein are described as essential indicators of the viability of the young. The practical breeding of pheasants is impossible without the correct use of protein and energy feed. It has been established that providing chicks with sufficient feed, particularly protein, is necessary for the modern technology of successful, promising, engaging, and useful pheasant farming. Suppose the conditions of keeping, care, and feeding of pheasants are violated. In that case, the incidence of disease (especially of young ones) and the survival of chicks increases, negatively affecting the efficiency of the new branch of pheasant farming. In such conditions, stress factors of the external environment, new fodder, internal factors with a sharp change in the environment, feeding, poor microclimate conditions, etc., are the factors that lead to the occurrence of diseases. Therefore, optimizing and creating comfortable conditions for keeping pheasants is an urgent task at the current stage of developing a rather exciting and rich in its subtlety industry – pheasant farming.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46614115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article presents the results of predicting the laying capacity of hens of different genotypes during an experiment to study the effectiveness of crossing roosters of imported meat crosses with meat-egg females of domestic selection. The average percentage of deviations of the actual bearing capacity values from the theoretically calculated values was generally low. It amounted to 0.82–4.55 % according to the model of T. Bridges and 0.8–3.28 % according to F. Richards. In the same group of chickens, the last model showed slightly more minor deviations than the model of T. Bridges. The most remarkable correspondence between the actual values of laying and those predicted by both models was determined in F1 chickens of the “K-2” group. Insignificant differences between the actual laying values and those predicted by both models were noted in F10 meat-egg chickens of the original maternal form, their F1 offspring, and chickens of the “K-5” group – 0.82–1.96 % according to the model of T. Bridges, 0.81–0.91 % according to the model of F. Richards. It is possible that the actual laying level of the birds of these groups determined in our research corresponded to the active paratypic factors in their maintenance, which is shown by the applied mathematical models by the high degree of coincidence of the calculated values with the actual ones. In a somewhat specific way, the models predicted laying in hens of other experimental groups. Thus, the model of T. Bridges underestimated the predicted bearing capacity by 3.59–8.25 %. Whereas the model of F. Richards also underestimated egg laying in the 5–7 months by 0.75–3.59 %, and in the last month, on the contrary, overestimated it – by 1.79–4.33 %. Although, in the end, the deviations of the predicted values from the actual values were slight – 2.82–4.55 % according to T. Bridges and 2.15–3.28 % according to F. Richards. The analysis of load-carrying curves calculated according to models showed a significant coincidence of actual and theoretical values – the R2 value, which determined the degree of correspondence between empirical and calculated load-carrying values, was high and amounted to 99.63–99.92 % according to the model of T. Bridges and 99.65–99.98 % according to the function of F. Richards.
{"title":"Prediction of laying hens of different genetic origins","authors":"V. P. Khvostik, Yu. V. Bondarenko, G. Paskevych","doi":"10.32718/nvlvet-a9810","DOIUrl":"https://doi.org/10.32718/nvlvet-a9810","url":null,"abstract":"The article presents the results of predicting the laying capacity of hens of different genotypes during an experiment to study the effectiveness of crossing roosters of imported meat crosses with meat-egg females of domestic selection. The average percentage of deviations of the actual bearing capacity values from the theoretically calculated values was generally low. It amounted to 0.82–4.55 % according to the model of T. Bridges and 0.8–3.28 % according to F. Richards. In the same group of chickens, the last model showed slightly more minor deviations than the model of T. Bridges. The most remarkable correspondence between the actual values of laying and those predicted by both models was determined in F1 chickens of the “K-2” group. Insignificant differences between the actual laying values and those predicted by both models were noted in F10 meat-egg chickens of the original maternal form, their F1 offspring, and chickens of the “K-5” group – 0.82–1.96 % according to the model of T. Bridges, 0.81–0.91 % according to the model of F. Richards. It is possible that the actual laying level of the birds of these groups determined in our research corresponded to the active paratypic factors in their maintenance, which is shown by the applied mathematical models by the high degree of coincidence of the calculated values with the actual ones. In a somewhat specific way, the models predicted laying in hens of other experimental groups. Thus, the model of T. Bridges underestimated the predicted bearing capacity by 3.59–8.25 %. Whereas the model of F. Richards also underestimated egg laying in the 5–7 months by 0.75–3.59 %, and in the last month, on the contrary, overestimated it – by 1.79–4.33 %. Although, in the end, the deviations of the predicted values from the actual values were slight – 2.82–4.55 % according to T. Bridges and 2.15–3.28 % according to F. Richards. The analysis of load-carrying curves calculated according to models showed a significant coincidence of actual and theoretical values – the R2 value, which determined the degree of correspondence between empirical and calculated load-carrying values, was high and amounted to 99.63–99.92 % according to the model of T. Bridges and 99.65–99.98 % according to the function of F. Richards.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49020899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The main goal of this study was to analysis of the main characteristics (latent variables) of lactation curve in dairy cows using multivariate Principal Component Analysis. This work used primary database from the milk production of Holstein cows (n = 238 heads) in the PJSC “Pedigree farm ‘Stepnoy’ Kamianka-Dniprovska Raion of Zaporizhzhia Oblast over a 4-yr period (2014-2017). Recording is done with an interval of 30 days for 10 test-days (TD1-TD10), i.e., TD1 is milk production recorded on milking day 30th, TD2 is day 60th, TD3 is day 90th, etc., and 305-day milk yield records (Y305) were used also. High significant correlations were found between daily milk yields for certain test-days. The Principal Component Analysis performed on the variance-correlation matrix of TD1-TD10 records are able to explain about 90.33 % of the total variance. The first principal component (PC1) explained 66.32 % of the total variance and was highly-positively correlated with TD2-TD10 records. Thus, PC1 were defined as “total milk production”. The second principal component (PC2) explained 19.06 % of the total variance and was highly-positively correlated with TD1-TD2 records and highly-negatively correlated with TD9-TD10 records. Thus, PC2 were defined as “lactation curve persistency”. Finally, the third principal component (PC3) explained 4.95 % of the total variance and was highly-positively correlated with TD1 and TD10 records and highly-negatively correlated with TD4-TD5 records. Thus, PC3 were defined as “lactation curve type”. The use of a multivariate method (namely, the PCA) for the analysis of lactation curve characteristics based on monthly test-day records gave very close results of the analysis of milk productivity in different groups of domestic animals (cattle, goats and sheep). In all cases, the first principal component (PC1) described the absolute level of milk productivity during lactation, and the second principal component (PC2) described the persistency of the lactation curve. Significant influence on the PC1-PC3 factor scores was revealed to the greatest extent for such non-genetic factors as age of cow (in lactations), year and month of calving. Of the genetic factors, the greatest influence on the shape of the lactation curve was not so much the differences between the bull lines (Bell, Valiant, Elevation, Starbuck and Chief), but differences between individual bulls within some lines.
{"title":"Investigating lactation curve characteristics of dairy cows","authors":"O. Kramarenko","doi":"10.32718/nvlvet-a9801","DOIUrl":"https://doi.org/10.32718/nvlvet-a9801","url":null,"abstract":"The main goal of this study was to analysis of the main characteristics (latent variables) of lactation curve in dairy cows using multivariate Principal Component Analysis. This work used primary database from the milk production of Holstein cows (n = 238 heads) in the PJSC “Pedigree farm ‘Stepnoy’ Kamianka-Dniprovska Raion of Zaporizhzhia Oblast over a 4-yr period (2014-2017). Recording is done with an interval of 30 days for 10 test-days (TD1-TD10), i.e., TD1 is milk production recorded on milking day 30th, TD2 is day 60th, TD3 is day 90th, etc., and 305-day milk yield records (Y305) were used also. High significant correlations were found between daily milk yields for certain test-days. The Principal Component Analysis performed on the variance-correlation matrix of TD1-TD10 records are able to explain about 90.33 % of the total variance. The first principal component (PC1) explained 66.32 % of the total variance and was highly-positively correlated with TD2-TD10 records. Thus, PC1 were defined as “total milk production”. The second principal component (PC2) explained 19.06 % of the total variance and was highly-positively correlated with TD1-TD2 records and highly-negatively correlated with TD9-TD10 records. Thus, PC2 were defined as “lactation curve persistency”. Finally, the third principal component (PC3) explained 4.95 % of the total variance and was highly-positively correlated with TD1 and TD10 records and highly-negatively correlated with TD4-TD5 records. Thus, PC3 were defined as “lactation curve type”. The use of a multivariate method (namely, the PCA) for the analysis of lactation curve characteristics based on monthly test-day records gave very close results of the analysis of milk productivity in different groups of domestic animals (cattle, goats and sheep). In all cases, the first principal component (PC1) described the absolute level of milk productivity during lactation, and the second principal component (PC2) described the persistency of the lactation curve. Significant influence on the PC1-PC3 factor scores was revealed to the greatest extent for such non-genetic factors as age of cow (in lactations), year and month of calving. Of the genetic factors, the greatest influence on the shape of the lactation curve was not so much the differences between the bull lines (Bell, Valiant, Elevation, Starbuck and Chief), but differences between individual bulls within some lines.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42001599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A full-fledged yearling of young cattle should be based on scientifically based standards, guaranteeing their genetic productivity potential, rational use of feed resources, and proper payment for feed with meat products. The current situation regarding the rationing of yearling livestock in global and domestic, both scientific and production practices, has fundamentally changed, which requires a significant revision of traditional provisions on the organization of rationed yearling and feeding of farm animals. At the same time, the conceptual requirements for the organization of standardized feeding of young livestock should be based on the general world experience of the need for energy, nutrients, and biologically active substances of animals, taking into account the age period of the growing season, with an emphasis on the quality and biosafety of products. In the intensive production of meat products, to ensure high productivity, it is only possible to do so by using feed products of natural substance, which should include additives with a phytobiological effect. One of these consists of the feed supplement “PROGALplv,” which contains the probiotic component maltodenstrin and fructooligosaccharides and belongs to the probiotic supplement for ruminants. Based on the research, optimizing the standardized feeding of fattening young animals on diets with different energy levels and using the biological feed additive “PROGALplv” at the rate of 6, 10, and 15 g/head was set a day. The research was conducted on Simmental bulls in the conditions of the farm “Pchany-Denkovych” of the Stryi district of the Lviv region. It was established that using “PROGALplv” bio-additives in the ration against the background of different energy nutrition contributed to an increase in the intensity of physiologically helpful microflora of the rumen, which had a stimulating effect in the processes of additional assimilation of nutrients. A positive result was obtained regarding the average daily gains and quality indicators of meat products and the economic efficiency of the final fattening period. Thus, based on the results of our research, it is possible to recommend the introduction of an increased level of energy nutrition of 110 % of the explicit norms into the intensive technology of livestock removal at the expense of an entirely rational feed mixture with the inclusion of the probiotic feed additive “PROGALplv” at the rate of 10 g/head per day. The optimal introduction dose to compound feed compliance is 10 g/head. The maximum amount can be no more than 15 g/h. daily. No adverse side effects of “PROGALplv” bio-additives on the general functional condition of Bugai residents were found.
{"title":"Effectiveness of fattening cattle on diets of different energy levels with the use of probiotic feed additive “PROGALplv”","authors":"O. Mil, Y. Pivtorak","doi":"10.32718/nvlvet-a9808","DOIUrl":"https://doi.org/10.32718/nvlvet-a9808","url":null,"abstract":"A full-fledged yearling of young cattle should be based on scientifically based standards, guaranteeing their genetic productivity potential, rational use of feed resources, and proper payment for feed with meat products. The current situation regarding the rationing of yearling livestock in global and domestic, both scientific and production practices, has fundamentally changed, which requires a significant revision of traditional provisions on the organization of rationed yearling and feeding of farm animals. At the same time, the conceptual requirements for the organization of standardized feeding of young livestock should be based on the general world experience of the need for energy, nutrients, and biologically active substances of animals, taking into account the age period of the growing season, with an emphasis on the quality and biosafety of products. In the intensive production of meat products, to ensure high productivity, it is only possible to do so by using feed products of natural substance, which should include additives with a phytobiological effect. One of these consists of the feed supplement “PROGALplv,” which contains the probiotic component maltodenstrin and fructooligosaccharides and belongs to the probiotic supplement for ruminants. Based on the research, optimizing the standardized feeding of fattening young animals on diets with different energy levels and using the biological feed additive “PROGALplv” at the rate of 6, 10, and 15 g/head was set a day. The research was conducted on Simmental bulls in the conditions of the farm “Pchany-Denkovych” of the Stryi district of the Lviv region. It was established that using “PROGALplv” bio-additives in the ration against the background of different energy nutrition contributed to an increase in the intensity of physiologically helpful microflora of the rumen, which had a stimulating effect in the processes of additional assimilation of nutrients. A positive result was obtained regarding the average daily gains and quality indicators of meat products and the economic efficiency of the final fattening period. Thus, based on the results of our research, it is possible to recommend the introduction of an increased level of energy nutrition of 110 % of the explicit norms into the intensive technology of livestock removal at the expense of an entirely rational feed mixture with the inclusion of the probiotic feed additive “PROGALplv” at the rate of 10 g/head per day. The optimal introduction dose to compound feed compliance is 10 g/head. The maximum amount can be no more than 15 g/h. daily. No adverse side effects of “PROGALplv” bio-additives on the general functional condition of Bugai residents were found.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43164918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As the population increases, the problem of meat production will grow. An alternative method of solving this problem is growing broiler chickens; however, with this technology, the question of protein content and available amino acids in poultry feed remains open. Vermiculture biomass can be an inexhaustible source of protein for broiler chickens feeding. Under the vivarium of the Bila Tserkva National Agrarian University, worms were grown on a substrate containing poultry droppings with litter fermented by an accelerated method with the participation of a destructor. Therefore, the work aims to establish the effect of such vermiculture biomass on productivity and protein metabolism in the body of broiler chickens. For this purpose, the broiler chickens of the research groups were fed with compound feed with a content of 1.5, 3.0, and 4.5 % of vermiculture biomass. Poultry compound feed from the control group did not contain worm biomass. At the end of the experiment, the bird's body weight was recorded, the absolute and average daily gains were determined, and the indicators of protein accounting in the liver of broiler chickens were determined. It has been established that the body weight of broiler chickens varies depending on the content of vermiculture biomass in compound feed. Using a low dose of worms in the feed did not make it possible to obtain a statistically significant increase in the body weight of broiler chickens. By adding 3.0 and 4.5 % vermiculture biomass to the compound feed, the body weight of broilers increases by 3.5 and 3.7 % compared to the index of birds that were not fed worms. It was found that the absolute and average daily growth of broiler chickens that consumed compound feed containing 3.0 and 4.5 % vermiculture biomass increased by a statistically significant amount. It has been proven that using vermiculture biomass affects the protein metabolism indicators in broiler chickens' livers. In the liver of broiler chickens, which were fed with compound feed with a content of 3.0 and 4.5 % of vermiculture biomass, a tendency to an increase in the total protein content and a statistically significant increase in the activity of aspartate aminotransferase and alanine aminotransferase was established. In the liver of broilers, which were fed with compound feed with a content of 3.0 and 4.5 % of worm biomass, a tendency to increase the content of total and protein total groups was revealed.
{"title":"Inclusion of vermiculture biomass grown on a substrate of accelerated fermentation into combined feeds for broiler chickens","authors":"","doi":"10.32718/nvlvet-a9806","DOIUrl":"https://doi.org/10.32718/nvlvet-a9806","url":null,"abstract":"As the population increases, the problem of meat production will grow. An alternative method of solving this problem is growing broiler chickens; however, with this technology, the question of protein content and available amino acids in poultry feed remains open. Vermiculture biomass can be an inexhaustible source of protein for broiler chickens feeding. Under the vivarium of the Bila Tserkva National Agrarian University, worms were grown on a substrate containing poultry droppings with litter fermented by an accelerated method with the participation of a destructor. Therefore, the work aims to establish the effect of such vermiculture biomass on productivity and protein metabolism in the body of broiler chickens. For this purpose, the broiler chickens of the research groups were fed with compound feed with a content of 1.5, 3.0, and 4.5 % of vermiculture biomass. Poultry compound feed from the control group did not contain worm biomass. At the end of the experiment, the bird's body weight was recorded, the absolute and average daily gains were determined, and the indicators of protein accounting in the liver of broiler chickens were determined. It has been established that the body weight of broiler chickens varies depending on the content of vermiculture biomass in compound feed. Using a low dose of worms in the feed did not make it possible to obtain a statistically significant increase in the body weight of broiler chickens. By adding 3.0 and 4.5 % vermiculture biomass to the compound feed, the body weight of broilers increases by 3.5 and 3.7 % compared to the index of birds that were not fed worms. It was found that the absolute and average daily growth of broiler chickens that consumed compound feed containing 3.0 and 4.5 % vermiculture biomass increased by a statistically significant amount. It has been proven that using vermiculture biomass affects the protein metabolism indicators in broiler chickens' livers. In the liver of broiler chickens, which were fed with compound feed with a content of 3.0 and 4.5 % of vermiculture biomass, a tendency to an increase in the total protein content and a statistically significant increase in the activity of aspartate aminotransferase and alanine aminotransferase was established. In the liver of broilers, which were fed with compound feed with a content of 3.0 and 4.5 % of worm biomass, a tendency to increase the content of total and protein total groups was revealed.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49109512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article presents data on the effect of a mineral-phytobiotic supplement on the age dynamics of the live weight of sheep obtained from crossbred ewes. The age dynamics of absolute, relative, and average daily growth rates were analyzed. The results of slaughter and the morphological composition of carcasses of 5-month-old lambs were studied. As a result of the research, it was found that in the first 2 months after birth, the mass of the lambs was higher by 12.5 %, and in lambs by 18.65 %, which was 15.58 % on average. In the following age periods, the live weight of gilts and lambs of the experimental group was also higher than the sheep of the control group by 17.68, respectively; 20.64; 12.45 and 17.08 %, while in the lambs of the experimental group, the intensity of increase compared to the control group was slightly lower and amounted to 14.92, respectively; 14.22; 12.89 and 9.56 %. The highest average daily growth in both groups of experimental sheep was in the period from birth to 2 months of age. By the age of 6 months, lambs and gilts of both groups had a live weight higher than 50 % compared to 18-month-old sheep. The slowdown in absolute growth is observed starting from 49 months of age, which in our opinion is related to weaning and transition to pasture. According to the results of the slaughter of 5-month-old lambs, it was established that the weight of the cartridge carcass, the slaughter weight, and the slaughter yield of the sheep of the experimental group was higher by 26.58, respectively; 22.75 and 7.89 %. The morphological composition of the carcasses of the 5-month-old lambs of the experimental group was higher by 32.69 and 22.26 %, respectively, in terms of pulp yield and fleshiness ratio.
{"title":"Effect of mineral-phytobiotic supplement on mass growth and meat productivity of crossbred sheep","authors":"M. Perih","doi":"10.32718/nvlvet-a9826","DOIUrl":"https://doi.org/10.32718/nvlvet-a9826","url":null,"abstract":"The article presents data on the effect of a mineral-phytobiotic supplement on the age dynamics of the live weight of sheep obtained from crossbred ewes. The age dynamics of absolute, relative, and average daily growth rates were analyzed. The results of slaughter and the morphological composition of carcasses of 5-month-old lambs were studied. As a result of the research, it was found that in the first 2 months after birth, the mass of the lambs was higher by 12.5 %, and in lambs by 18.65 %, which was 15.58 % on average. In the following age periods, the live weight of gilts and lambs of the experimental group was also higher than the sheep of the control group by 17.68, respectively; 20.64; 12.45 and 17.08 %, while in the lambs of the experimental group, the intensity of increase compared to the control group was slightly lower and amounted to 14.92, respectively; 14.22; 12.89 and 9.56 %. The highest average daily growth in both groups of experimental sheep was in the period from birth to 2 months of age. By the age of 6 months, lambs and gilts of both groups had a live weight higher than 50 % compared to 18-month-old sheep. The slowdown in absolute growth is observed starting from 49 months of age, which in our opinion is related to weaning and transition to pasture. According to the results of the slaughter of 5-month-old lambs, it was established that the weight of the cartridge carcass, the slaughter weight, and the slaughter yield of the sheep of the experimental group was higher by 26.58, respectively; 22.75 and 7.89 %. The morphological composition of the carcasses of the 5-month-old lambs of the experimental group was higher by 32.69 and 22.26 %, respectively, in terms of pulp yield and fleshiness ratio.","PeriodicalId":33662,"journal":{"name":"Naukovii visnik L''vivs''kogo natsional''nogo universitetu veterinarnoyi meditsini ta biotekhnologii imeni SZ G''zhits''kogo Seriia Kharchovi tekhnologiyi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45745839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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