O. S. Tishchenko, M. Povod, B. Gutyj, O. I. Myronenko, L. Kuzmenko, H. I. Kalinichenko, A. O. Boiko
The intensity of growth of piglets, their preservation during rearing, and the payment of feed by the increments of animals that were placed for rearing with a design live weight of 7 kg and 20 % less than the design weight – 5.5 kg were studied. Also, the ratio of consumption of compound feed of different recipes during rearing, their cost, and the efficiency of rearing piglets at different staged live weights were studied. It was established that piglets that weighed 1.58 kg less at the beginning of rearing, when placed on rearing during this period, showed 20.9 % lower growth energy, due to which they had 19.6 % lower absolute growth during this period, which caused together with a lower production weight, a 20.3 % lower weight when transferred to fattening and an 8.8 % worse feed payment in increments, they consumed 31.4 % more of the expensive first pre-starter feed during the growing period, and 11.9 % less than the second cheaper pre-starter compound feed and 42.6 % less than the cheapest starter compound feed, as a result of which the cost of feed consumed by the animals of the experimental group was 10.6 % lower compared to the analogs of the experimental group. But taking into account the significantly lower absolute growth of the animals of the experimental group, the cost of feed for 1 kg of growth was 11.2 % higher in comparison with the similar indicator of animals that were put on growing at a designed live weight of 7.0 kg. At the same time, rearing piglets under the conditions of putting them into this process with the design live weight contributed to a decrease of 11.2 % in the cost of feed per kilogram of growth, an increase of 20.3 % in the cost of one piglet after the completion of rearing, and a 23.1 % increase in the income from its sale and 1.07 % higher profitability of raising one head, but resulted in 10.6 % higher feed and operating cost of rearing 1 head and 19.6 % higher operating cost of one piglet at the end of rearing.
{"title":"The efficiency of growing hybrid piglets with different weights when placed under a liquid feeding system","authors":"O. S. Tishchenko, M. Povod, B. Gutyj, O. I. Myronenko, L. Kuzmenko, H. I. Kalinichenko, A. O. Boiko","doi":"10.32718/nvlvet-a9936","DOIUrl":"https://doi.org/10.32718/nvlvet-a9936","url":null,"abstract":"The intensity of growth of piglets, their preservation during rearing, and the payment of feed by the increments of animals that were placed for rearing with a design live weight of 7 kg and 20 % less than the design weight – 5.5 kg were studied. Also, the ratio of consumption of compound feed of different recipes during rearing, their cost, and the efficiency of rearing piglets at different staged live weights were studied. It was established that piglets that weighed 1.58 kg less at the beginning of rearing, when placed on rearing during this period, showed 20.9 % lower growth energy, due to which they had 19.6 % lower absolute growth during this period, which caused together with a lower production weight, a 20.3 % lower weight when transferred to fattening and an 8.8 % worse feed payment in increments, they consumed 31.4 % more of the expensive first pre-starter feed during the growing period, and 11.9 % less than the second cheaper pre-starter compound feed and 42.6 % less than the cheapest starter compound feed, as a result of which the cost of feed consumed by the animals of the experimental group was 10.6 % lower compared to the analogs of the experimental group. But taking into account the significantly lower absolute growth of the animals of the experimental group, the cost of feed for 1 kg of growth was 11.2 % higher in comparison with the similar indicator of animals that were put on growing at a designed live weight of 7.0 kg. At the same time, rearing piglets under the conditions of putting them into this process with the design live weight contributed to a decrease of 11.2 % in the cost of feed per kilogram of growth, an increase of 20.3 % in the cost of one piglet after the completion of rearing, and a 23.1 % increase in the income from its sale and 1.07 % higher profitability of raising one head, but resulted in 10.6 % higher feed and operating cost of rearing 1 head and 19.6 % higher operating cost of one piglet at the end of rearing.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342505","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}
At the “Pchany-Denkovych” farm of the Stryi district of the Lviv region, the influence of the behavior of Simmental cows and the method of feeding a grain mixture on their quantitative and qualitative composition of milk depending on the level of feeding was studied, as well as the possibility of using ethological assessment as one of the criteria when selecting animals for industrial use. It was established that there was a slight advantage in terms of expenditure on foraging behavior by classes in active and ultraactive individuals in both experimental groups of cows. Thus, animals from the first and second groups of the active class spent the most time on feed consumption, respectively – 21.4 and 22.0 min, which is 20.2 and 19.6 % more than the rate of infrapassive animals (17.8 and 18.4 min). A similar pattern was found in cows and in terms of time spent on water consumption. Thus, cows of the infrapassive classes spent the least amount of time on water consumption, respectively – In the first group – 9.6 minutes, and in the second group – 10.5 minutes. Cows of the active class with a high level of general activity of the first and second groups spent the most time on water consumption, respectively – by 16.3 and 16.6 minutes. The influence of the level of general activity of cows on their milk productivity was established - with an increase in the level of activity, an increase in milk productivity was observed. It was established that the cows belonging to the active class were characterized by the highest milk yield. At the same time, in order to increase the efficiency of the use and assimilation of feed, it is recommended to feed concentrated feed to dairy cows in portions – part of it as part of the feed mixture, and part of it during the milking of the cows. It was established that the cows of the first group with a low level of general activity, which received concentrated feed during milking, were characterized by the lowest milk productivity. Thus, the infrapassive animals of the first group had a 15.1 % (Р < 0.05) lower hope for lactation, compared to the peers of the active class, which were given the feed mixture in portions. In each class, there were also differences in milk productivity depending on feeding Thus, the cows of the second group exceeded their peers from the first group of different classes of ethological activity in terms of milk yield, respectively – by 2.4, 3.9, 2.1, and 2.9 %, given the grain mixture during milking. A little higher the milk productivity of the animals of the second group is associated with better eating of the feed mixture and the content of the percentage of concentrated feed in the recipe. Better consumption of feed mixture by animals contributed to greater consumption of nutrients in the diet, which was reflected in the milk productivity of cows. It was established that the density and acidity of milk of different classes of ethological activity were within normal limits. There are practical
{"title":"The influence of the behavior of cows and the method of feeding a grain mix-ture on their milk productivity","authors":"N. M. Hordiichuk, L. Hordiichuk, I. Salamakha","doi":"10.32718/nvlvet-a9932","DOIUrl":"https://doi.org/10.32718/nvlvet-a9932","url":null,"abstract":"At the “Pchany-Denkovych” farm of the Stryi district of the Lviv region, the influence of the behavior of Simmental cows and the method of feeding a grain mixture on their quantitative and qualitative composition of milk depending on the level of feeding was studied, as well as the possibility of using ethological assessment as one of the criteria when selecting animals for industrial use. It was established that there was a slight advantage in terms of expenditure on foraging behavior by classes in active and ultraactive individuals in both experimental groups of cows. Thus, animals from the first and second groups of the active class spent the most time on feed consumption, respectively – 21.4 and 22.0 min, which is 20.2 and 19.6 % more than the rate of infrapassive animals (17.8 and 18.4 min). A similar pattern was found in cows and in terms of time spent on water consumption. Thus, cows of the infrapassive classes spent the least amount of time on water consumption, respectively – In the first group – 9.6 minutes, and in the second group – 10.5 minutes. Cows of the active class with a high level of general activity of the first and second groups spent the most time on water consumption, respectively – by 16.3 and 16.6 minutes. The influence of the level of general activity of cows on their milk productivity was established - with an increase in the level of activity, an increase in milk productivity was observed. It was established that the cows belonging to the active class were characterized by the highest milk yield. At the same time, in order to increase the efficiency of the use and assimilation of feed, it is recommended to feed concentrated feed to dairy cows in portions – part of it as part of the feed mixture, and part of it during the milking of the cows. It was established that the cows of the first group with a low level of general activity, which received concentrated feed during milking, were characterized by the lowest milk productivity. Thus, the infrapassive animals of the first group had a 15.1 % (Р < 0.05) lower hope for lactation, compared to the peers of the active class, which were given the feed mixture in portions. In each class, there were also differences in milk productivity depending on feeding Thus, the cows of the second group exceeded their peers from the first group of different classes of ethological activity in terms of milk yield, respectively – by 2.4, 3.9, 2.1, and 2.9 %, given the grain mixture during milking. A little higher the milk productivity of the animals of the second group is associated with better eating of the feed mixture and the content of the percentage of concentrated feed in the recipe. Better consumption of feed mixture by animals contributed to greater consumption of nutrients in the diet, which was reflected in the milk productivity of cows. It was established that the density and acidity of milk of different classes of ethological activity were within normal limits. There are practical","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342561","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}
An important aspect is the problem of balanced micronutrient nutrition in diets, which arises from insufficient macro- and micronutrients in soil and feed. Some of these elements act as components of biologically active compounds and regulate various metabolic processes. A lack or excess of these elements can lead to significant metabolic disorders in the animal's body and decreased productivity. The ratio imbalance occurs when a violation of metabolism accompanies fattening young cattle concerning mineral substances, a decrease in the productivity and stability of animals, and deterioration of veterinary and sanitary indicators and meat quality. The research aimed to reveal the effect of enriching rations with deficient microelements in combination with chelating compounds (methionates) on the productivity of experimental cattle. The use of trace elements and their chelated compounds, such as methionates and other biologically active substances, has advantages. This helps to reduce the assimilation of heavy metals and radionuclides from contaminated feed and water. Chelated complexes of microelements easily penetrate through cell membranes, which allows you to have a targeted effect on the metabolism of substances and energy and correct the deficiency of microelements in the corresponding biogeochemical zones. With the addition of trace element supplements and their chelated compounds, the slaughter yield of bulls of the 2nd, third, and fourth experimental groups increased by 0.15, 1.48, and 2.26 kg, respectively, compared to the control group. The yield of high-grade meat increased by 9.18, 11.02, and 13.9 kg, respectively, for the control. Also, the first-grade muscle tissue yield increased by 11.35, 12.95, and 15.1 kg compared to the control. Correction of the rations of experimental animals with deficient trace elements in the form of salts and their chelated compounds (methionates) contributed to improving beef's physical and chemical composition and nutritional value. Thus, we conclude that the fourth experimental group, which was fed microelements in the form of chelated compounds (methionates), has the best indicators in terms of all parameters, the second and third experimental groups, which were fed inorganic salts of deficient microelements, have slightly lower indicators, respectively. In the future, we will use chelating compounds of deficient trace elements to improve beef's physiological and morphological indicators.
{"title":"The effect of chelating compounds on the meat qualities of beef","authors":"T. Farionik, Y. A. Titula","doi":"10.32718/nvlvet-a9938","DOIUrl":"https://doi.org/10.32718/nvlvet-a9938","url":null,"abstract":"An important aspect is the problem of balanced micronutrient nutrition in diets, which arises from insufficient macro- and micronutrients in soil and feed. Some of these elements act as components of biologically active compounds and regulate various metabolic processes. A lack or excess of these elements can lead to significant metabolic disorders in the animal's body and decreased productivity. The ratio imbalance occurs when a violation of metabolism accompanies fattening young cattle concerning mineral substances, a decrease in the productivity and stability of animals, and deterioration of veterinary and sanitary indicators and meat quality. The research aimed to reveal the effect of enriching rations with deficient microelements in combination with chelating compounds (methionates) on the productivity of experimental cattle. The use of trace elements and their chelated compounds, such as methionates and other biologically active substances, has advantages. This helps to reduce the assimilation of heavy metals and radionuclides from contaminated feed and water. Chelated complexes of microelements easily penetrate through cell membranes, which allows you to have a targeted effect on the metabolism of substances and energy and correct the deficiency of microelements in the corresponding biogeochemical zones. With the addition of trace element supplements and their chelated compounds, the slaughter yield of bulls of the 2nd, third, and fourth experimental groups increased by 0.15, 1.48, and 2.26 kg, respectively, compared to the control group. The yield of high-grade meat increased by 9.18, 11.02, and 13.9 kg, respectively, for the control. Also, the first-grade muscle tissue yield increased by 11.35, 12.95, and 15.1 kg compared to the control. Correction of the rations of experimental animals with deficient trace elements in the form of salts and their chelated compounds (methionates) contributed to improving beef's physical and chemical composition and nutritional value. Thus, we conclude that the fourth experimental group, which was fed microelements in the form of chelated compounds (methionates), has the best indicators in terms of all parameters, the second and third experimental groups, which were fed inorganic salts of deficient microelements, have slightly lower indicators, respectively. In the future, we will use chelating compounds of deficient trace elements to improve beef's physiological and morphological indicators.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342671","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}
This scholarly article presents a comprehensive analysis of sulfur and cystine content in the wool of various sheep breeds, with a particular focus on their relationship with wool growth and strength. The breeds under scrutiny include the Askanian fine-wool, Prekos, Latvian dark-headed, Ukrainian Carpathian mountain, and Karakul breeds. Our research revolves around wool samples extracted from the scapula area before the spring shearing process. Our findings reveal that the highest sulfur content is observed in the wool of Karakul sheep (3.05 %) and Prekos sheep (2.90 %), whereas the lowest sulfur content is noted in Latvian dark-headed sheep (2.65 %). Conversely, the highest cystine content is exhibited in the wool of Askanian fine-wool sheep (11.87 %) and Prekos sheep (11.46 %), while the lowest cystine content characterizes the wool of Karakul sheep (8.99 %) and the Latvian dark-headed breed (10.10 %). The genetic factors, specifically breed-specific characteristics, impact on the rate of wool growth. The most rapid growth rates are observed in Karakul sheep (873 mg/cm/day) and Askanian fine-wool sheep (857 mg/cm/day). Slightly lower growth rates are noted in Prekos breed sheep (844 mg/cm/day) and Ukrainian Carpathian mountain breed sheep (766 mg/cm/day). The lowest growth rates are recorded in Latvian dark-headed sheep (742 mg/cm/day). Furthermore, we establish that the highest tensile strength values are associated with the coarse wool of Karakul sheep (9.6 cN/tex) and the semi-coarse wool of Ukrainian Carpathian mountain sheep (9.3 cN/tex), as these fibers possess the thickest cuticular layer. Conversely, the lowest tensile strength values are observed in the wool of Latvian dark-headed sheep (7.0 cN/tex) and Prekos breed (7.1 cN/tex). An examination of the data reveals that there is no statistically significant correlation between the content of sulfur and cystine and the rate of wool growth. However, a robust direct correlational relationship is identified between the sulfur content and fiber strength (with correlation coefficients of r = 0.831 for Karakul breed sheep wool, 0.713 for Latvian dark-headed, 0.698 for Ukrainian Carpathian mountain, 0.544 for Askanian fine-wool, and 0.460 for Prekos breed wool).
{"title":"Sulfur and Cystine Content in Various Sheep Wool Breeds and Their Correlation with Wool Growth and Strength","authors":"V. M. Tkachuk, N. M. Ohorodnyk, N. Motko","doi":"10.32718/nvlvet-a9914","DOIUrl":"https://doi.org/10.32718/nvlvet-a9914","url":null,"abstract":"This scholarly article presents a comprehensive analysis of sulfur and cystine content in the wool of various sheep breeds, with a particular focus on their relationship with wool growth and strength. The breeds under scrutiny include the Askanian fine-wool, Prekos, Latvian dark-headed, Ukrainian Carpathian mountain, and Karakul breeds. Our research revolves around wool samples extracted from the scapula area before the spring shearing process. Our findings reveal that the highest sulfur content is observed in the wool of Karakul sheep (3.05 %) and Prekos sheep (2.90 %), whereas the lowest sulfur content is noted in Latvian dark-headed sheep (2.65 %). Conversely, the highest cystine content is exhibited in the wool of Askanian fine-wool sheep (11.87 %) and Prekos sheep (11.46 %), while the lowest cystine content characterizes the wool of Karakul sheep (8.99 %) and the Latvian dark-headed breed (10.10 %). The genetic factors, specifically breed-specific characteristics, impact on the rate of wool growth. The most rapid growth rates are observed in Karakul sheep (873 mg/cm/day) and Askanian fine-wool sheep (857 mg/cm/day). Slightly lower growth rates are noted in Prekos breed sheep (844 mg/cm/day) and Ukrainian Carpathian mountain breed sheep (766 mg/cm/day). The lowest growth rates are recorded in Latvian dark-headed sheep (742 mg/cm/day). Furthermore, we establish that the highest tensile strength values are associated with the coarse wool of Karakul sheep (9.6 cN/tex) and the semi-coarse wool of Ukrainian Carpathian mountain sheep (9.3 cN/tex), as these fibers possess the thickest cuticular layer. Conversely, the lowest tensile strength values are observed in the wool of Latvian dark-headed sheep (7.0 cN/tex) and Prekos breed (7.1 cN/tex). An examination of the data reveals that there is no statistically significant correlation between the content of sulfur and cystine and the rate of wool growth. However, a robust direct correlational relationship is identified between the sulfur content and fiber strength (with correlation coefficients of r = 0.831 for Karakul breed sheep wool, 0.713 for Latvian dark-headed, 0.698 for Ukrainian Carpathian mountain, 0.544 for Askanian fine-wool, and 0.460 for Prekos breed wool).","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"67 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342264","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 study was conducted on feeding Vita Fisch combined feed to rainbow trout Oncorhynchus mykiss this year based on a full-system cold-water farm of the Western Fish Company, Peremyshlyan district, Lviv region. The experiments considered the conditions of keeping hydrochemical and fishery indicators: stocking density, temperature, oxygen saturation, and pH of the environment. At the initial stages of the work, fish pools with a water volume of 30 m3 were treated by a one-time application of the probiotic “Sviteco PW” at a dose of 1.0 ml/m3 of water. According to our observations, after a day, the water in the pool became more transparent compared to collections without probiotics, which indicates high results of bioremediation, which maintains the water body at an optimal level. By conducting production tests on this year's troy ear we set ourselves the goal of producing high-quality, high-nutrition combined feed with a low cost and feed ratio, which are well eaten by fish, contribute to the appropriate growth rate, increase fish weight, profitability of aquaculture, prevention of water pollution, reduction of manifestations of conditionally pathogenic microorganisms and safety for the environment. Therefore, we fed this year's raiyear'srout with “Vita Fisc” granular compound feed, which is made from domestic ingredients according to a recipe for young trout, in specialized production by fermentation of the main components of the meal with the introduction of 2.5 % of the premix and probiotic “Sviteco PWC” production pools under aquaculture conditions at the 0.7 ml/kg feed. The ingredients and production of this feed are focused primarily on quality indicators regarding environmental friendliness and environmental protection, taking into account health, physiological state, the ability of fish to carry loads, the quality of food fish, and the profitability of production. Feeding with combined feed was carried out at a temperature of 8 °C while providing 1 % of the feed from the weight of the fish during the day. As a result of the work, trout have a high activity in eating, digestibility, assimilation of compound feed, and a low feed coefficient of 0.95 k. units were established.
{"title":"The technology of growing rainbow trout in the conditions of PE “Western Fish Company” by feeding Vita Fisch compound feed","authors":"V. Bozhyk, I. Kychun, J. Yaninovych","doi":"10.32718/nvlvet-a9933","DOIUrl":"https://doi.org/10.32718/nvlvet-a9933","url":null,"abstract":"A study was conducted on feeding Vita Fisch combined feed to rainbow trout Oncorhynchus mykiss this year based on a full-system cold-water farm of the Western Fish Company, Peremyshlyan district, Lviv region. The experiments considered the conditions of keeping hydrochemical and fishery indicators: stocking density, temperature, oxygen saturation, and pH of the environment. At the initial stages of the work, fish pools with a water volume of 30 m3 were treated by a one-time application of the probiotic “Sviteco PW” at a dose of 1.0 ml/m3 of water. According to our observations, after a day, the water in the pool became more transparent compared to collections without probiotics, which indicates high results of bioremediation, which maintains the water body at an optimal level. By conducting production tests on this year's troy ear we set ourselves the goal of producing high-quality, high-nutrition combined feed with a low cost and feed ratio, which are well eaten by fish, contribute to the appropriate growth rate, increase fish weight, profitability of aquaculture, prevention of water pollution, reduction of manifestations of conditionally pathogenic microorganisms and safety for the environment. Therefore, we fed this year's raiyear'srout with “Vita Fisc” granular compound feed, which is made from domestic ingredients according to a recipe for young trout, in specialized production by fermentation of the main components of the meal with the introduction of 2.5 % of the premix and probiotic “Sviteco PWC” production pools under aquaculture conditions at the 0.7 ml/kg feed. The ingredients and production of this feed are focused primarily on quality indicators regarding environmental friendliness and environmental protection, taking into account health, physiological state, the ability of fish to carry loads, the quality of food fish, and the profitability of production. Feeding with combined feed was carried out at a temperature of 8 °C while providing 1 % of the feed from the weight of the fish during the day. As a result of the work, trout have a high activity in eating, digestibility, assimilation of compound feed, and a low feed coefficient of 0.95 k. units were established.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"265 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342600","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}
Genetic factors can influence the composition of milk fat and its genetic variation. The purpose of our work was to familiarize and study the structure, role, and influence of the DGAT1 (or diacylglycerol-O-acyltransferase 1) gene on goat milk production, its structure, and relationship with milk fat for further research in improving the goat selection system. The selection of goats, aimed at increasing the frequency of alleles with a positive effect on this trait, was initiated by geneticists. In general, identifying and evaluating genetic markers for milk performance traits are the initial and crucial steps for establishing a marker-assisted selection system (MAS). Thus, increasing productivity through genetic selection is a common goal for many animal breeding programs worldwide. The amount of milk, milk fat, and proteins are essential features of dairy farming. In cheese production, milk fatty acids perform a crucial technical function, as they are the main building blocks of milk fat, giving the cheese its unique taste and textural properties. Milk fatty acids are necessary for producing many dairy products, while intramuscular fat is associated with meat quality. Triacylglycerols (TAG) are the main components of intramuscular fat and milk fat. Therefore, understanding polymorphisms and genes related to fat synthesis is essential for animal husbandry. The identification of quantitative trait loci (QTL) and genes associated with milk production traits has been supported by various studies over the past decade. It was established that QTL genes on chromosomes 14, 15, and 9 are related to the properties of milk and meat production in goats. The presence of the diacylglycerol-O-acyltransferase 1 (DGAT1) gene in goat chromosomes 14, 15, and 9 has been reported. Having a key role in fat metabolism and TAG synthesis, DGAT1 genes have attracted considerable attention, especially in animal milk production. Several polymorphisms have been documented in DGAT1 in different animal species, including many cattle and small cattle, for their association with milk production traits. The critical role of the DGAT1 gene in milk fat metabolism makes it an exciting candidate for genetic variation in milk characteristics in dairy goats.
{"title":"Association of DGAT1 with goat milk and meat production traits","authors":"O. Kravchenko, Y. Karban","doi":"10.32718/nvlvet-a9939","DOIUrl":"https://doi.org/10.32718/nvlvet-a9939","url":null,"abstract":"Genetic factors can influence the composition of milk fat and its genetic variation. The purpose of our work was to familiarize and study the structure, role, and influence of the DGAT1 (or diacylglycerol-O-acyltransferase 1) gene on goat milk production, its structure, and relationship with milk fat for further research in improving the goat selection system. The selection of goats, aimed at increasing the frequency of alleles with a positive effect on this trait, was initiated by geneticists. In general, identifying and evaluating genetic markers for milk performance traits are the initial and crucial steps for establishing a marker-assisted selection system (MAS). Thus, increasing productivity through genetic selection is a common goal for many animal breeding programs worldwide. The amount of milk, milk fat, and proteins are essential features of dairy farming. In cheese production, milk fatty acids perform a crucial technical function, as they are the main building blocks of milk fat, giving the cheese its unique taste and textural properties. Milk fatty acids are necessary for producing many dairy products, while intramuscular fat is associated with meat quality. Triacylglycerols (TAG) are the main components of intramuscular fat and milk fat. Therefore, understanding polymorphisms and genes related to fat synthesis is essential for animal husbandry. The identification of quantitative trait loci (QTL) and genes associated with milk production traits has been supported by various studies over the past decade. It was established that QTL genes on chromosomes 14, 15, and 9 are related to the properties of milk and meat production in goats. The presence of the diacylglycerol-O-acyltransferase 1 (DGAT1) gene in goat chromosomes 14, 15, and 9 has been reported. Having a key role in fat metabolism and TAG synthesis, DGAT1 genes have attracted considerable attention, especially in animal milk production. Several polymorphisms have been documented in DGAT1 in different animal species, including many cattle and small cattle, for their association with milk production traits. The critical role of the DGAT1 gene in milk fat metabolism makes it an exciting candidate for genetic variation in milk characteristics in dairy goats.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"2016 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342620","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}
R. M. Sachuk, B. Gutyj, V. Pepko, T. Velesyk, O. I. Portukhai, M. I. Kostolovych, O. A. Katsaraba, I. V. Halka
The article examines the current state and problems of beekeeping products market development in the Rivne region and Ukraine. The prospects for the development of apiturism in the Rivne region have been assessed. It has been established that Ukraine has sufficient resources for the intensification of the development of tourist and recreational activities, the use of which will contribute to the development of infrastructure and the solution of a number of social and economic issues of the activities of territorial communities, the development of environmental education, the dissemination of knowledge about the history and culture of our people, and the improvement of the population. Apitourism, as a component of rural green tourism of the Rivne region, will contribute to the preservation of jobs in rural areas and is a way to ensure the development of the infrastructure of non-urbanized rural areas with minimal technogenic load. The further development of apitourism will contribute to the growth of a positive image of Ukraine in the international arena as a producer and exporter of high-quality beekeeping products. The territory of the Rivne region is sufficiently equipped with natural objects for the development of beekeeping and apitourism in particular. In the presence of significant areas of the objects of the nature reserve fund, the territory of which is not subject to significant anthropogenic load, it is possible to increase the production of beekeeping products from ecologically clean territories and the implementation of state and regional programs for the development of this type of activity. On the example of one of the personal peasant households, it was established that the apitherapy of the private estate of Malih Sadiv is a young direction of modern medicine in the Rivne region. It consists in the use of healing products produced by bees. They are used to improve the health of the human body to strengthen immunity. The air inside the api-inhalation room is saturated with biologically active substances of propolis, which has antimicrobial properties.
{"title":"The current state of beekeeping in Ukraine and prospects for the development of apitourism in the Rivne region","authors":"R. M. Sachuk, B. Gutyj, V. Pepko, T. Velesyk, O. I. Portukhai, M. I. Kostolovych, O. A. Katsaraba, I. V. Halka","doi":"10.32718/nvlvet-a9925","DOIUrl":"https://doi.org/10.32718/nvlvet-a9925","url":null,"abstract":"The article examines the current state and problems of beekeeping products market development in the Rivne region and Ukraine. The prospects for the development of apiturism in the Rivne region have been assessed. It has been established that Ukraine has sufficient resources for the intensification of the development of tourist and recreational activities, the use of which will contribute to the development of infrastructure and the solution of a number of social and economic issues of the activities of territorial communities, the development of environmental education, the dissemination of knowledge about the history and culture of our people, and the improvement of the population. Apitourism, as a component of rural green tourism of the Rivne region, will contribute to the preservation of jobs in rural areas and is a way to ensure the development of the infrastructure of non-urbanized rural areas with minimal technogenic load. The further development of apitourism will contribute to the growth of a positive image of Ukraine in the international arena as a producer and exporter of high-quality beekeeping products. The territory of the Rivne region is sufficiently equipped with natural objects for the development of beekeeping and apitourism in particular. In the presence of significant areas of the objects of the nature reserve fund, the territory of which is not subject to significant anthropogenic load, it is possible to increase the production of beekeeping products from ecologically clean territories and the implementation of state and regional programs for the development of this type of activity. On the example of one of the personal peasant households, it was established that the apitherapy of the private estate of Malih Sadiv is a young direction of modern medicine in the Rivne region. It consists in the use of healing products produced by bees. They are used to improve the health of the human body to strengthen immunity. The air inside the api-inhalation room is saturated with biologically active substances of propolis, which has antimicrobial properties.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342398","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}
T. Z. Smychok, B. Gutyj, O. Kozenko, V. Todoriuk, T. Martyshuk, V. Kushnir, N. Y. Krempa, U. Vus, O. P. Rudenko, O. Vozna, V. V. Senechyn
The work aimed to investigate the effect of the “Metisevit” feed additive on the activity of the enzymes of the antioxidant system of the blood of piglets under conditions of nitrate-nitrite load. The research was carried out on 60-day-old piglets of the large white breed. For the experiment, 10 clinically healthy piglets were selected, from which 2 groups of five animals were formed. Piglets of the control group were fed sodium nitrate at a dose of 0.3 g NO3-/kg body weight for three months. Piglets of the research group were also fed sodium nitrate at a dose of 0.3 g NO3-/kg of body weight, together with Metisevit at a dose of 0.36 g/kg of feed for three months. The “Metisevit” feed additive was developed at the Department of Pharmacology and Toxicology of the Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnology Lviv, which contains vitamin E, selenium, and methiphene (methionine, phenarone, zeolite). Under the conditions of feeding piglets with sodium nitrate feed at a dose of 0.3 g of NO3ˉ/kg, a decrease in the activity of enzymes of the antioxidant defense system was established: superoxide dismutase by 14.8 %, catalase by 20%, glutathione peroxidase by 15.1 %. Metisevit in piglets increased the activity of the enzyme link of the antioxidant protection system, preventing the development of oxidative stress that occurs in nitrate-nitrite toxicosis. During our experiments, it was found that the introduction of Metisevit into the diet of piglets with excessive consumption of nitrates prevented the development of chronic nitrate-nitrite toxicosis. It was established that Metisevit increases the activity of enzymes – superoxide dismutase, catalase, and glutathione peroxidase. These enzymes reduce the high level of lipid peroxidation products in the body of piglets under conditions of nitrate-nitrite load.
{"title":"The influence of the feed additive “Metisevit” on the activity of the antioxi-dant defense system of piglets under conditions of nitrate-nitrite load","authors":"T. Z. Smychok, B. Gutyj, O. Kozenko, V. Todoriuk, T. Martyshuk, V. Kushnir, N. Y. Krempa, U. Vus, O. P. Rudenko, O. Vozna, V. V. Senechyn","doi":"10.32718/nvlvet-a9929","DOIUrl":"https://doi.org/10.32718/nvlvet-a9929","url":null,"abstract":"The work aimed to investigate the effect of the “Metisevit” feed additive on the activity of the enzymes of the antioxidant system of the blood of piglets under conditions of nitrate-nitrite load. The research was carried out on 60-day-old piglets of the large white breed. For the experiment, 10 clinically healthy piglets were selected, from which 2 groups of five animals were formed. Piglets of the control group were fed sodium nitrate at a dose of 0.3 g NO3-/kg body weight for three months. Piglets of the research group were also fed sodium nitrate at a dose of 0.3 g NO3-/kg of body weight, together with Metisevit at a dose of 0.36 g/kg of feed for three months. The “Metisevit” feed additive was developed at the Department of Pharmacology and Toxicology of the Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnology Lviv, which contains vitamin E, selenium, and methiphene (methionine, phenarone, zeolite). Under the conditions of feeding piglets with sodium nitrate feed at a dose of 0.3 g of NO3ˉ/kg, a decrease in the activity of enzymes of the antioxidant defense system was established: superoxide dismutase by 14.8 %, catalase by 20%, glutathione peroxidase by 15.1 %. Metisevit in piglets increased the activity of the enzyme link of the antioxidant protection system, preventing the development of oxidative stress that occurs in nitrate-nitrite toxicosis. During our experiments, it was found that the introduction of Metisevit into the diet of piglets with excessive consumption of nitrates prevented the development of chronic nitrate-nitrite toxicosis. It was established that Metisevit increases the activity of enzymes – superoxide dismutase, catalase, and glutathione peroxidase. These enzymes reduce the high level of lipid peroxidation products in the body of piglets under conditions of nitrate-nitrite load.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342432","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}
Cereal straw, including wheat one, is widely used in animal husbandry. Wheat straw is used as bedding and a component of rations. Violation of storage conditions and excessive volumes of harvesting causes a large mass of straw to deteriorate every year, which has a negative impact on the environment. Uncontrolled rotting of straw increases the amount of gas emissions into the air. An effective way of disposing of spoiled wheat straw is its fermentation using biological preparations to obtain biocompost. The problem of the effectiveness of composting spoiled wheat straw using the domestic biodestructor BTU-CENTER remains unexplored. The aim of the work was to determine the effect of different doses of the BTU-CENTER biodestructor on the physical and chemical parameters of fermented wheat straw. For the experiment, 4 groups of piles were formed. In the piles from the control group, straw composting was carried out without the use of a biodestructor. A biodestructor was added to the straw from the 1st experimental group at the rate of 7.0 cm3/t of biomass with a moisture content of 65.5 %. Spoiled straw in the II and III experimental groups was treated with a biodestuctor solution, providing its doses in the range of 14.0 and 28.0 cm3/t. Aeration of the piles was carried out by stirring the straw periodically every 8 days. During composting, the temperature of the straw biomass in the middle of the piles was determined. The content of crude protein, Phosphorus, Calcium and Nitrogen was determined in the fermented straw. It has been established that the heating of straw in the piles started from the second day of composting. An increase in the temperature of the biomass in the experimental piles was observed up to the 12th day, and in the control group up to the 14th day of composting. It was found that the higher the dose of the biodestructor used during straw processing, the higher the temperature in the middle of the piles. In the III experimental group, on the 12th day of composting, the highest straw temperature was established in the middle of the piles. The difference with control, I and II experimental groups was 21.4; 15.9 and 4.1 % respectively. The longest fermentation of wheat straw under the thermophilic regime was established in the group where the highest dose of biodestructor was used – 18 days. It has been proved that the use of high doses of the biodestructor increases the content of crude protein, Nitrogen, Phosphorus and Calcium in the fermented wheat straw biomass relatively to the control one.
{"title":"Physical and chemical indicators of wheat straw fermented with a biodestructor of domestic production","authors":"L. Mitiohlo, S. V. Merzlov, H. Merzlova","doi":"10.32718/nvlvet-a9919","DOIUrl":"https://doi.org/10.32718/nvlvet-a9919","url":null,"abstract":"Cereal straw, including wheat one, is widely used in animal husbandry. Wheat straw is used as bedding and a component of rations. Violation of storage conditions and excessive volumes of harvesting causes a large mass of straw to deteriorate every year, which has a negative impact on the environment. Uncontrolled rotting of straw increases the amount of gas emissions into the air. An effective way of disposing of spoiled wheat straw is its fermentation using biological preparations to obtain biocompost. The problem of the effectiveness of composting spoiled wheat straw using the domestic biodestructor BTU-CENTER remains unexplored. The aim of the work was to determine the effect of different doses of the BTU-CENTER biodestructor on the physical and chemical parameters of fermented wheat straw. For the experiment, 4 groups of piles were formed. In the piles from the control group, straw composting was carried out without the use of a biodestructor. A biodestructor was added to the straw from the 1st experimental group at the rate of 7.0 cm3/t of biomass with a moisture content of 65.5 %. Spoiled straw in the II and III experimental groups was treated with a biodestuctor solution, providing its doses in the range of 14.0 and 28.0 cm3/t. Aeration of the piles was carried out by stirring the straw periodically every 8 days. During composting, the temperature of the straw biomass in the middle of the piles was determined. The content of crude protein, Phosphorus, Calcium and Nitrogen was determined in the fermented straw. It has been established that the heating of straw in the piles started from the second day of composting. An increase in the temperature of the biomass in the experimental piles was observed up to the 12th day, and in the control group up to the 14th day of composting. It was found that the higher the dose of the biodestructor used during straw processing, the higher the temperature in the middle of the piles. In the III experimental group, on the 12th day of composting, the highest straw temperature was established in the middle of the piles. The difference with control, I and II experimental groups was 21.4; 15.9 and 4.1 % respectively. The longest fermentation of wheat straw under the thermophilic regime was established in the group where the highest dose of biodestructor was used – 18 days. It has been proved that the use of high doses of the biodestructor increases the content of crude protein, Nitrogen, Phosphorus and Calcium in the fermented wheat straw biomass relatively to the control one.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"276 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342539","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}
O. Konoval, M. Sychov, D. Umanets, I. Ilchuk, I. Balanchuk, S. Boiarchuk, V. Оtchenashko, T. Holubeva
Aquaculture is the fastest growing sector of the global food industry, signaling a paradigm shift in how we meet the growing demand for fish. The current aquaculture production system relies heavily on fishmeal, which is becoming increasingly unsustainable due to stagnant or declining fish catches, especially wild marine fish stocks. A significant percentage of fish stocks are already almost completely used. This situation, combined with the increasing demand for fish, suggests that fishmeal will become a more limiting ingredient, both from a production and price perspective. In response to these pressing issues, there has been a notable surge in research to explore potential alternatives, such as insect meal, which is one of the critical means to ensure the sustainability of aquaculture and overcome the limitations of fishmeal. Insects hold significant promise in the field of animal nutrition, and further research is needed to fully understand their nutritional value in the context of animal feed applications. Insect farming can be effectively done on human by-products or waste, allowing them to convert this rich, cheap organic waste into protein-rich animal biomass suitable for animal consumption. Analytical review found that insect meal has sufficient nutrient composition suitable for potential inclusion in fish feed as a versatile protein source to create individual nutrient profiles. It is worth noting that a wide range of insect species, their various habitats, developmental stages, feeding behavior and other characteristics can affect the nutritional value of insect meal. This diversity makes insect meal an attractive target for further research as an alternative to fish meal.
{"title":"Use of insects in feeding of fish (review)","authors":"O. Konoval, M. Sychov, D. Umanets, I. Ilchuk, I. Balanchuk, S. Boiarchuk, V. Оtchenashko, T. Holubeva","doi":"10.32718/nvlvet-a9921","DOIUrl":"https://doi.org/10.32718/nvlvet-a9921","url":null,"abstract":"Aquaculture is the fastest growing sector of the global food industry, signaling a paradigm shift in how we meet the growing demand for fish. The current aquaculture production system relies heavily on fishmeal, which is becoming increasingly unsustainable due to stagnant or declining fish catches, especially wild marine fish stocks. A significant percentage of fish stocks are already almost completely used. This situation, combined with the increasing demand for fish, suggests that fishmeal will become a more limiting ingredient, both from a production and price perspective. In response to these pressing issues, there has been a notable surge in research to explore potential alternatives, such as insect meal, which is one of the critical means to ensure the sustainability of aquaculture and overcome the limitations of fishmeal. Insects hold significant promise in the field of animal nutrition, and further research is needed to fully understand their nutritional value in the context of animal feed applications. Insect farming can be effectively done on human by-products or waste, allowing them to convert this rich, cheap organic waste into protein-rich animal biomass suitable for animal consumption. Analytical review found that insect meal has sufficient nutrient composition suitable for potential inclusion in fish feed as a versatile protein source to create individual nutrient profiles. It is worth noting that a wide range of insect species, their various habitats, developmental stages, feeding behavior and other characteristics can affect the nutritional value of insect meal. This diversity makes insect meal an attractive target for further research as an alternative to fish meal.","PeriodicalId":21703,"journal":{"name":"Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139342325","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：