Abstract The aim of this study was to determine biogas amount and the energy value produced from animal manure in Samsun province, Turkey. For this purpose, biogas potential was calculated considering the number of cattle, buffalo and laying hens in the province. Samsun has a total of about 300 thousand cattle, 18 thousand buffalo, and 1.4 million laying hens. From these animals in the province, 2.95 million t of cattle manure, 178 thousand t of buffalo manure, and 40 thousand t of laying hens manure, including the total of 3.2 Mt of manure per year is obtained. Annually, 53.6 Mm3 of biogas can be produced from the usable amount of this manure. The heating value of biogas produced from this manure is about 1.22 PJ. The electricity production from this biogas is about 135 GWhel. These values can provide 4.96% of Samsun’s annual electrical energy consumption (2720 GWhel). The distribution of these calculated amounts by districts was mapped. When districts are listed according to the biogas production amount, the top seven Samsun districts are Bafra (16.2%), Center (16.0%), Carsamba (12.1%), Vezirkopru (11.0%), Terme (7.6%), Alacam (7.4%) and Havza (7.0%).
{"title":"Biogas Production Potential from Animal Manure in Samsun Province of Turkey","authors":"Cengiz Karaca, G. Gűrdi̇l","doi":"10.2478/sab-2019-0019","DOIUrl":"https://doi.org/10.2478/sab-2019-0019","url":null,"abstract":"Abstract The aim of this study was to determine biogas amount and the energy value produced from animal manure in Samsun province, Turkey. For this purpose, biogas potential was calculated considering the number of cattle, buffalo and laying hens in the province. Samsun has a total of about 300 thousand cattle, 18 thousand buffalo, and 1.4 million laying hens. From these animals in the province, 2.95 million t of cattle manure, 178 thousand t of buffalo manure, and 40 thousand t of laying hens manure, including the total of 3.2 Mt of manure per year is obtained. Annually, 53.6 Mm3 of biogas can be produced from the usable amount of this manure. The heating value of biogas produced from this manure is about 1.22 PJ. The electricity production from this biogas is about 135 GWhel. These values can provide 4.96% of Samsun’s annual electrical energy consumption (2720 GWhel). The distribution of these calculated amounts by districts was mapped. When districts are listed according to the biogas production amount, the top seven Samsun districts are Bafra (16.2%), Center (16.0%), Carsamba (12.1%), Vezirkopru (11.0%), Terme (7.6%), Alacam (7.4%) and Havza (7.0%).","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46789877","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}
M. Ptáček, M. Stádníková, F. Savvulidi, L. Stádník
Abstract Kinematic parameters of thawed ram semen frozen under field conditions were analysed with the use of two commercial (egg yolk vs egg yolk free) semen extenders in different year-seasonal periods. The semen was collected from Suffolk (n = 2) and Charollais (n = 1) rams kept in private breeding farm on 3 test days (pre-mating, at mating, post mating) during year 2016. Two commercial semen extenders (egg yolk-based BullXcell® or egg yolk-free AndroMed®) were used for semen processing. Processed semen was frozen in 0.25 ml plastic cryostraws using the custom-made portable freezing box for ram semen cryopreservation under field conditions. Thawed semen characteristics were evaluated using computer-assisted semen analysis (CASA) system immediately after thawing and after 2 h of heat incubation (±38°C). Significantly higher total motility (+12.3%), straight line velocity (+5.6 μm s−1), and average-path velocity (+6.9 μm s−1) were detected for the semen processed and cryopreserved using egg yolk-based semen extender. Year-seasonal variation and introducing the ram to service had shown to have a significant effect on the cryopreserved ram spermatozoa. These preliminary results confirmed the feasibility of ram semen processing and cryopreservation under field conditions.
{"title":"Ram Semen Cryopreservation Using Egg Yolk or Egg Yolk-free Extenders: Preliminary Results","authors":"M. Ptáček, M. Stádníková, F. Savvulidi, L. Stádník","doi":"10.2478/sab-2019-0014","DOIUrl":"https://doi.org/10.2478/sab-2019-0014","url":null,"abstract":"Abstract Kinematic parameters of thawed ram semen frozen under field conditions were analysed with the use of two commercial (egg yolk vs egg yolk free) semen extenders in different year-seasonal periods. The semen was collected from Suffolk (n = 2) and Charollais (n = 1) rams kept in private breeding farm on 3 test days (pre-mating, at mating, post mating) during year 2016. Two commercial semen extenders (egg yolk-based BullXcell® or egg yolk-free AndroMed®) were used for semen processing. Processed semen was frozen in 0.25 ml plastic cryostraws using the custom-made portable freezing box for ram semen cryopreservation under field conditions. Thawed semen characteristics were evaluated using computer-assisted semen analysis (CASA) system immediately after thawing and after 2 h of heat incubation (±38°C). Significantly higher total motility (+12.3%), straight line velocity (+5.6 μm s−1), and average-path velocity (+6.9 μm s−1) were detected for the semen processed and cryopreserved using egg yolk-based semen extender. Year-seasonal variation and introducing the ram to service had shown to have a significant effect on the cryopreserved ram spermatozoa. These preliminary results confirmed the feasibility of ram semen processing and cryopreservation under field conditions.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48856738","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}
Abstract The aim of the work is to increase the efficiency of the biotechnological process of Trichogramma production by improving the pneumatic calibrator of grain moth eggs. The trajectory of grain moth eggs movement in horizontal air flow of the pneumatic calibrator, taking into account the equivalent diameter, as well as the initial velocity, is determined. The size and location of containers, height of the separation chamber and valve, and air flow velocity in the calibrator are substantiated. The obtained analytical dependencies allow us to determine the height of vertical channel of the stabilizing nozzle depending on the initial conditions of movement and the equivalent diameter of an egg. The hovering rate of grain moth eggs and conglomerates (depending on the number of eggs in them) is experimentally determined. Optimal values of the structural and technological parameters of the improved pneumatic calibrator (air flow velocity 3.8 m s−1, height of separation chamber 198–199 mm, valve height 26–27 mm) are determined on the basis of the experimental design planning methodology. The probability of selecting large eggs is increasing by 31%.
摘要通过对粮蛾虫卵气动校准器的改进，提高赤眼蜂生物工艺生产的效率。在考虑当量直径和初始速度的情况下，确定了颗粒蛾卵在气动校准器水平气流中的运动轨迹。确定了容器的尺寸和位置、分离室和阀门的高度以及校准器内的气流速度。得到的解析依赖关系使我们能够根据运动的初始条件和鸡蛋的等效直径确定稳定喷嘴垂直通道的高度。实验测定了粒蛾卵和卵团的悬停率(取决于卵的数量)。根据实验设计规划方法确定了改进后的气动校准器的结构参数和工艺参数的最优值(气流速度3.8 m s−1，分离室高度198 ~ 199 mm，阀高26 ~ 27 mm)。选择大鸡蛋的概率增加了31%。
{"title":"Parameters of Pneumatic Calibrator of Grain Moth Eggs for Trichogramma Production","authors":"G. Golub, O. Marus, V. Chuba","doi":"10.2478/sab-2019-0017","DOIUrl":"https://doi.org/10.2478/sab-2019-0017","url":null,"abstract":"Abstract The aim of the work is to increase the efficiency of the biotechnological process of Trichogramma production by improving the pneumatic calibrator of grain moth eggs. The trajectory of grain moth eggs movement in horizontal air flow of the pneumatic calibrator, taking into account the equivalent diameter, as well as the initial velocity, is determined. The size and location of containers, height of the separation chamber and valve, and air flow velocity in the calibrator are substantiated. The obtained analytical dependencies allow us to determine the height of vertical channel of the stabilizing nozzle depending on the initial conditions of movement and the equivalent diameter of an egg. The hovering rate of grain moth eggs and conglomerates (depending on the number of eggs in them) is experimentally determined. Optimal values of the structural and technological parameters of the improved pneumatic calibrator (air flow velocity 3.8 m s−1, height of separation chamber 198–199 mm, valve height 26–27 mm) are determined on the basis of the experimental design planning methodology. The probability of selecting large eggs is increasing by 31%.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41605243","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}
Abstract The objective of this study is to identify the regions of the Czech Republic with the economically non-effective agriculture industry. The methodology is based on an orginal approach as the economically weak regions are identified on the LAU 1 level, comparing to the existing studies using only NUTS III level. The input data describe the economic results of 6,031 agricultural entities from 75 different regions LAU 1. The data covering the period between 2006 and 2014 were gained from the database Amadeus. The study deploys the methods of Principal Component Analysis, Kaiser-Meier-Olkin test, Bartlett’s test and hierarchical cluster analysis. The study determinates two key components: the Company Size and the Company Profit. These key components are used as the input variables for the cluster analysis. The cluster analysis identifies four clusters of regions from the agricultural entities economical results point of view. Subsequently the Standardized Variable Method is used to determinate the mutual order of the regions. The results of LAU 1 regions analyses show that the agrucultural entities, located in the border regions, reach economical results below average of the Czech Republic regions.
{"title":"Analysis of Regional Disparities in Agriculture Focusing on Economically Weak Regions of the Czech Republic","authors":"J. Sirohi, G. Kukalová, L. Moravec","doi":"10.2478/sab-2019-0020","DOIUrl":"https://doi.org/10.2478/sab-2019-0020","url":null,"abstract":"Abstract The objective of this study is to identify the regions of the Czech Republic with the economically non-effective agriculture industry. The methodology is based on an orginal approach as the economically weak regions are identified on the LAU 1 level, comparing to the existing studies using only NUTS III level. The input data describe the economic results of 6,031 agricultural entities from 75 different regions LAU 1. The data covering the period between 2006 and 2014 were gained from the database Amadeus. The study deploys the methods of Principal Component Analysis, Kaiser-Meier-Olkin test, Bartlett’s test and hierarchical cluster analysis. The study determinates two key components: the Company Size and the Company Profit. These key components are used as the input variables for the cluster analysis. The cluster analysis identifies four clusters of regions from the agricultural entities economical results point of view. Subsequently the Standardized Variable Method is used to determinate the mutual order of the regions. The results of LAU 1 regions analyses show that the agrucultural entities, located in the border regions, reach economical results below average of the Czech Republic regions.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42666615","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. Čermák, J. Vlčková, E. Skřivanová, K. Lalouckova, M. Englmaierová
Abstract Outdoor access is an important part of organic and free-range poultry production, yet limited information exists on the effect of various housing and production systems on the growth performance and colonization of food-borne pathogens. Therefore, the primary purpose of the current study was to evaluate the influence of different housing systems (particularly fixed versus small, portable houses, with and without outdoor access to pasture) and different broiler genotypes on the gastrointestinal bacteria in broilers. The fundamental factor studied was the presence of any quantitative changes in common gastrointestinal microbiota, including pathogenic genera such as Campylobacter sp. and Salmonella sp. The results showed differences in intestinal microbiota and confirmed lowered counts of caecal coliforms in pasture-reared broilers.
{"title":"Effect of Genotype on Ileal and Caecal Microbiota in Pasture-Reared Dominant Cockerels","authors":"L. Čermák, J. Vlčková, E. Skřivanová, K. Lalouckova, M. Englmaierová","doi":"10.2478/sab-2019-0013","DOIUrl":"https://doi.org/10.2478/sab-2019-0013","url":null,"abstract":"Abstract Outdoor access is an important part of organic and free-range poultry production, yet limited information exists on the effect of various housing and production systems on the growth performance and colonization of food-borne pathogens. Therefore, the primary purpose of the current study was to evaluate the influence of different housing systems (particularly fixed versus small, portable houses, with and without outdoor access to pasture) and different broiler genotypes on the gastrointestinal bacteria in broilers. The fundamental factor studied was the presence of any quantitative changes in common gastrointestinal microbiota, including pathogenic genera such as Campylobacter sp. and Salmonella sp. The results showed differences in intestinal microbiota and confirmed lowered counts of caecal coliforms in pasture-reared broilers.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41903015","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}
I. Jankovská, V. Sloup, P. Válek, J. Száková, J. Magdálek, B. Horáková, I. Langrová
Abstract The aim of this work was to determine how two cadmium (Cd) hyperaccumulating plants in feed affect a consumer organism (Rattus norvegicus var. alba). Using inductively coupled plasma optical emission spectrometry (ICP-OES), Cd concentrations were analyzed in Wistar rat (Rattus norvegicus var. alba) tissues. Rats were fed the Cd and Zn hyperaccumulating plants Noccaea caerulescens or Arabidopsis halleri. Rats given Arabidopsis halleri took in 4 times as much Cd as did rats fed Noccaea caerulescens. However, the muscle, intestinal, kidney, spleen, testicular, bone and liver tissues of rats fed A.halleri had 7.3, 5.6, 5.5, 3.5, 3.1, 2.5 and 2.3 times higher Cd concentrations, respectively, than did tissues of rats fed N. caerulescens. A. halleri burdened the muscle, small intestinal, and kidney tissues with Cd to a greater extent than did N. caerulescens. However, the spleen, testes, bone and liver were significantly more burdened with Cd by N. caerulescens. In both experimental groups (rats given N. caerulescens as well as those given A. halleri), the highest Cd concentrations were found (in descending order) in the kidneys > liver > small intestine > spleen > testes > bone > and muscle. This information is vital in situations where, for example, livestock can graze on these plants or when other animals and humans accidentally consume these plants.
{"title":"Effects of Two Cadmium Hyperaccumulating Plants (N. Caerulescens And A. Halleri) in Feed on Tissue Burden in Laboratory Rats","authors":"I. Jankovská, V. Sloup, P. Válek, J. Száková, J. Magdálek, B. Horáková, I. Langrová","doi":"10.2478/sab-2019-0007","DOIUrl":"https://doi.org/10.2478/sab-2019-0007","url":null,"abstract":"Abstract The aim of this work was to determine how two cadmium (Cd) hyperaccumulating plants in feed affect a consumer organism (Rattus norvegicus var. alba). Using inductively coupled plasma optical emission spectrometry (ICP-OES), Cd concentrations were analyzed in Wistar rat (Rattus norvegicus var. alba) tissues. Rats were fed the Cd and Zn hyperaccumulating plants Noccaea caerulescens or Arabidopsis halleri. Rats given Arabidopsis halleri took in 4 times as much Cd as did rats fed Noccaea caerulescens. However, the muscle, intestinal, kidney, spleen, testicular, bone and liver tissues of rats fed A.halleri had 7.3, 5.6, 5.5, 3.5, 3.1, 2.5 and 2.3 times higher Cd concentrations, respectively, than did tissues of rats fed N. caerulescens. A. halleri burdened the muscle, small intestinal, and kidney tissues with Cd to a greater extent than did N. caerulescens. However, the spleen, testes, bone and liver were significantly more burdened with Cd by N. caerulescens. In both experimental groups (rats given N. caerulescens as well as those given A. halleri), the highest Cd concentrations were found (in descending order) in the kidneys > liver > small intestine > spleen > testes > bone > and muscle. This information is vital in situations where, for example, livestock can graze on these plants or when other animals and humans accidentally consume these plants.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48919681","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}
M. Nepacina, J. Foronda, K. Haygood, R. Tan, G. Janairo, F. Co, R.O. Bagaforo, T.A. Narvaez, J. Janairo
Abstract A support vector machine classification algorithm was formulated to differentiate rubber cup coagulum according to the type of acid coagulant used. Two classification models were established, a binary classification algorithm and a model that can identify if formic, acetic, sulfuric acid, or no acid was used to induce coagulation. The models were based on the properties of the rubber cup coagulum that are easy to measure, such as tensile strength, water contact angle, and density. The binary classification model, which differentiates the industry-accepted formic acid-coagulated rubber cup coagulum from those which are not, exhibited satisfactory reliability, as evidenced by a 92% overall prediction accuracy and 71.4% cross-validation accuracy. Moreover, it was also determined that the rubber properties density, and water contact angle were important contributors for the classification. Acid-induced rubber coagulation is an important post-harvest process that influences the resulting rubber quality. Thus, the accurate differentiation of the rubber samples is useful for quality assurance purposes, as well as in policy enforcement.
{"title":"Differentiation of Rubber Cup Coagulum Through Machine Learning","authors":"M. Nepacina, J. Foronda, K. Haygood, R. Tan, G. Janairo, F. Co, R.O. Bagaforo, T.A. Narvaez, J. Janairo","doi":"10.2478/sab-2019-0008","DOIUrl":"https://doi.org/10.2478/sab-2019-0008","url":null,"abstract":"Abstract A support vector machine classification algorithm was formulated to differentiate rubber cup coagulum according to the type of acid coagulant used. Two classification models were established, a binary classification algorithm and a model that can identify if formic, acetic, sulfuric acid, or no acid was used to induce coagulation. The models were based on the properties of the rubber cup coagulum that are easy to measure, such as tensile strength, water contact angle, and density. The binary classification model, which differentiates the industry-accepted formic acid-coagulated rubber cup coagulum from those which are not, exhibited satisfactory reliability, as evidenced by a 92% overall prediction accuracy and 71.4% cross-validation accuracy. Moreover, it was also determined that the rubber properties density, and water contact angle were important contributors for the classification. Acid-induced rubber coagulation is an important post-harvest process that influences the resulting rubber quality. Thus, the accurate differentiation of the rubber samples is useful for quality assurance purposes, as well as in policy enforcement.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48493211","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}
Abstract The objective of the study was to identify the impact of selection on genetic resistance against scrapie disease related to lamb growth performance attributes for Suffolk, Kent, Charollais, and Texel lambs.The allelic genotypes were grouped according to the presence of scrapie resistant allele (ARR): ARR homozygotes, ARR heterozygotes, no presence of ARR allele. The influence of these groups on lamb live weight (LW), musculus longissimus lumborum et thoracis depth (MLLT), and back-fat thickness at 100 days of age was investigated using SAS software. No significant differences for Suffolk and Charollais breeds were detected. Significantly highest LW (34.41 kg) and MLLT (27.80 mm) were noticed for Kent ARR homozygotes lambs, while significantly lowest values were estimated at lambs with absent ARR allele (LW = 33.42 kg, MLLT = 26.68 mm). Significantly lower muscle depth (–0.69 mm) was detected for Texel ARR homozygote compared to ARR heterozygote lambs. As a result, we were unable to detect a consistent evidence for reduced growth performance traits in relation to genetic resistance against scrapie disease. However, the number of animals in some groups caused as a limiting factor. This can be a potential reason of opposed trends in Texel and Kent lambs.
{"title":"Genetic Resistance Against Scrapie Disease Related to Lamb Growth Performance Traits","authors":"M. Ptáček, J. Ducháček","doi":"10.2478/sab-2019-0002","DOIUrl":"https://doi.org/10.2478/sab-2019-0002","url":null,"abstract":"Abstract The objective of the study was to identify the impact of selection on genetic resistance against scrapie disease related to lamb growth performance attributes for Suffolk, Kent, Charollais, and Texel lambs.The allelic genotypes were grouped according to the presence of scrapie resistant allele (ARR): ARR homozygotes, ARR heterozygotes, no presence of ARR allele. The influence of these groups on lamb live weight (LW), musculus longissimus lumborum et thoracis depth (MLLT), and back-fat thickness at 100 days of age was investigated using SAS software. No significant differences for Suffolk and Charollais breeds were detected. Significantly highest LW (34.41 kg) and MLLT (27.80 mm) were noticed for Kent ARR homozygotes lambs, while significantly lowest values were estimated at lambs with absent ARR allele (LW = 33.42 kg, MLLT = 26.68 mm). Significantly lower muscle depth (–0.69 mm) was detected for Texel ARR homozygote compared to ARR heterozygote lambs. As a result, we were unable to detect a consistent evidence for reduced growth performance traits in relation to genetic resistance against scrapie disease. However, the number of animals in some groups caused as a limiting factor. This can be a potential reason of opposed trends in Texel and Kent lambs.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48353727","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. Pebriansyah, D. Lukešová, I. Knížková, P. Silberová, P. Kunc
Abstract The effect of different label and processing methods of milk thistle on growth performance in broiler rabbits (HYLA, n = 255) fed with different concentration of milk thistle (Silybum marianum) was studied. Four experiments were conducted. Rabbits were fed with different concentrations of 1% non-fermented milk thistle (experimental group E1) and 0.5% fermented milk thistle (experimental group E2), and the results were compared with a control group C (standard feed ration without any supplementation). Each experiment started at 42 days of rabbits’ age and finished at 85 days of age. Observed parameters were: average daily gain, average daily feed consumption, total feed consumption, slaughter live weight, and carcass weight. The best results were showed in experimental group E2 (supplement of 0.5% fermented milk thistle). Significant differences (P<0.05) were recorded in average daily feed consumption, total feed consumption, slaughter live weight, and carcass weight. The results show that 0.5% fermented milk thistle extract supplemented in the feed ration for broiler rabbits has a positive effect on fattening performance.
摘要研究了水飞蓟不同标签和加工方式对饲喂不同浓度水飞蓟(Silybum marianum)的肉仔兔(HYLA, n = 255)生长性能的影响。进行了四项实验。分别饲喂不同浓度1%未发酵水飞蓟(实验E1组)和0.5%发酵水飞蓟(实验E2组)，并与对照组C(不添加任何饲料)进行比较。每组试验于兔42日龄开始，85日龄结束。观察参数为:平均日增重、平均日采食量、总采食量、屠宰活重、胴体重。试验E2组(添加0.5%发酵水飞蓟)效果最好。平均日采食量、总采食量、屠宰活重和胴体重差异显著(P<0.05)。结果表明，饲粮中添加0.5%发酵水飞蓟提取物对肉兔增肥性能有积极影响。
{"title":"The Effect of Natural Phytoadditive Silybum Marianum on Performance of Broiler Rabbits","authors":"A. Pebriansyah, D. Lukešová, I. Knížková, P. Silberová, P. Kunc","doi":"10.2478/sab-2019-0006","DOIUrl":"https://doi.org/10.2478/sab-2019-0006","url":null,"abstract":"Abstract The effect of different label and processing methods of milk thistle on growth performance in broiler rabbits (HYLA, n = 255) fed with different concentration of milk thistle (Silybum marianum) was studied. Four experiments were conducted. Rabbits were fed with different concentrations of 1% non-fermented milk thistle (experimental group E1) and 0.5% fermented milk thistle (experimental group E2), and the results were compared with a control group C (standard feed ration without any supplementation). Each experiment started at 42 days of rabbits’ age and finished at 85 days of age. Observed parameters were: average daily gain, average daily feed consumption, total feed consumption, slaughter live weight, and carcass weight. The best results were showed in experimental group E2 (supplement of 0.5% fermented milk thistle). Significant differences (P<0.05) were recorded in average daily feed consumption, total feed consumption, slaughter live weight, and carcass weight. The results show that 0.5% fermented milk thistle extract supplemented in the feed ration for broiler rabbits has a positive effect on fattening performance.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47858570","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}
Abstract Simple lattice design with two replicates was used to evaluate 25 tobacco genotypes. The following eight traits were measured and evaluated: plant height (PH), leaf length (LL), leaf width (LW), leaf number per plant (LN), stem girth (SG), leaf area (LA), dry leaf yield (DLW), and fresh leaf yield (FLW). The genotype by trait biplot for tobacco dataset explained 73% of the total variation of the standardized data. The polygon view of genotype by trait presented for the eight different traits of tobacco genotypes showed six vertex cultivars (G4, G5, G11, G12, G18, and G21). Genotype G21 had the highest values for most of the measured traits. Based on a vector view biplot, strong positive associations among LL, DLW, FLW, and LA were detected while near zero correlations between LL and SG, as well as between LL and PH were observed. Generally, based on ideal genotype and ideal tester biplots, it was demonstrated that the selection for high leaf yield should be performed via leaf length, leaf width, and leaf area traits identified as effective selection criteria for high yielding cultivars.
{"title":"Genetic Variation of Some Tobacco (Nicotiana Tabacum L.) Genotypes by Morphological Traits","authors":"Z. Porkabiri, N. Sabaghnia, R. Ranjbar, H. Maleki","doi":"10.2478/sab-2019-0001","DOIUrl":"https://doi.org/10.2478/sab-2019-0001","url":null,"abstract":"Abstract Simple lattice design with two replicates was used to evaluate 25 tobacco genotypes. The following eight traits were measured and evaluated: plant height (PH), leaf length (LL), leaf width (LW), leaf number per plant (LN), stem girth (SG), leaf area (LA), dry leaf yield (DLW), and fresh leaf yield (FLW). The genotype by trait biplot for tobacco dataset explained 73% of the total variation of the standardized data. The polygon view of genotype by trait presented for the eight different traits of tobacco genotypes showed six vertex cultivars (G4, G5, G11, G12, G18, and G21). Genotype G21 had the highest values for most of the measured traits. Based on a vector view biplot, strong positive associations among LL, DLW, FLW, and LA were detected while near zero correlations between LL and SG, as well as between LL and PH were observed. Generally, based on ideal genotype and ideal tester biplots, it was demonstrated that the selection for high leaf yield should be performed via leaf length, leaf width, and leaf area traits identified as effective selection criteria for high yielding cultivars.","PeriodicalId":53537,"journal":{"name":"Scientia Agriculturae Bohemica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48404547","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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