Scientia Agriculturae Bohemica最新文献_第5页

Biogas Production Potential from Animal Manure in Samsun Province of Turkey 土耳其萨姆松省动物粪便生产沼气的潜力

Scientia Agriculturae Bohemica Pub Date : 2019-06-01 DOI: 10.2478/sab-2019-0019

Cengiz Karaca, G. Gűrdi̇l

引用次数: 6

Ram Semen Cryopreservation Using Egg Yolk or Egg Yolk-free Extenders: Preliminary Results 用蛋黄或不含蛋黄的添加物冷冻保存公羊精液:初步结果

Scientia Agriculturae Bohemica Pub Date : 2019-06-01 DOI: 10.2478/sab-2019-0014

M. Ptáček, M. Stádníková, F. Savvulidi, L. Stádník

{"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":"50 1","pages":"103 - 96"},"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}

引用次数: 7

Parameters of Pneumatic Calibrator of Grain Moth Eggs for Trichogramma Production 用于赤眼蜂生产的谷蛾卵气动校准器的参数

Scientia Agriculturae Bohemica Pub Date : 2019-06-01 DOI: 10.2478/sab-2019-0017

G. Golub, O. Marus, V. Chuba

{"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":"50 1","pages":"117 - 126"},"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}

引用次数: 5

Effect of Genotype on Ileal and Caecal Microbiota in Pasture-Reared Dominant Cockerels 基因型对放牧优势公鸡回肠和盲肠微生物群的影响

Scientia Agriculturae Bohemica Pub Date : 2019-06-01 DOI: 10.2478/sab-2019-0013

L. Čermák, J. Vlčková, E. Skřivanová, K. Lalouckova, M. Englmaierová

引用次数: 0

Analysis of Regional Disparities in Agriculture Focusing on Economically Weak Regions of the Czech Republic 以捷克经济薄弱地区为中心的农业区域差异分析

Scientia Agriculturae Bohemica Pub Date : 2019-06-01 DOI: 10.2478/sab-2019-0020

J. Sirohi, G. Kukalová, L. Moravec

{"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":"50 1","pages":"141 - 153"},"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}

引用次数: 0

Effects of Two Cadmium Hyperaccumulating Plants (N. Caerulescens And A. Halleri) in Feed on Tissue Burden in Laboratory Rats 两种镉高积累植物（N.Caerulescens和A.Halleri）对实验大鼠组织负荷的影响

Scientia Agriculturae Bohemica Pub Date : 2019-03-01 DOI: 10.2478/sab-2019-0007

I. Jankovská, V. Sloup, P. Válek, J. Száková, J. Magdálek, B. Horáková, I. Langrová

{"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":"50 1","pages":"46 - 50"},"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}

引用次数: 0

Differentiation of Rubber Cup Coagulum Through Machine Learning 橡胶杯凝固物的机器学习鉴别

Scientia Agriculturae Bohemica Pub Date : 2019-03-01 DOI: 10.2478/sab-2019-0008

M. Nepacina, J. Foronda, K. Haygood, R. Tan, G. Janairo, F. Co, R.O. Bagaforo, T.A. Narvaez, J. Janairo

{"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":"50 1","pages":"51 - 55"},"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}

引用次数: 3

Genetic Resistance Against Scrapie Disease Related to Lamb Growth Performance Traits 羔羊生长性能性状对痒病的遗传抗性研究

Scientia Agriculturae Bohemica Pub Date : 2019-03-01 DOI: 10.2478/sab-2019-0002

M. Ptáček, J. Ducháček

{"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":"50 1","pages":"14 - 8"},"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}

引用次数: 2

The Effect of Natural Phytoadditive Silybum Marianum on Performance of Broiler Rabbits 天然植物添加剂水飞蓟对肉鸡生产性能的影响

Scientia Agriculturae Bohemica Pub Date : 2019-03-01 DOI: 10.2478/sab-2019-0006

A. Pebriansyah, D. Lukešová, I. Knížková, P. Silberová, P. Kunc

{"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":"50 1","pages":"40 - 45"},"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}

引用次数: 2

Genetic Variation of Some Tobacco (Nicotiana Tabacum L.) Genotypes by Morphological Traits 部分烟草(Nicotiana Tabacum L.)的遗传变异形态性状基因型

Scientia Agriculturae Bohemica Pub Date : 2019-03-01 DOI: 10.2478/sab-2019-0001

Z. Porkabiri, N. Sabaghnia, R. Ranjbar, H. Maleki

引用次数: 2