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Acta Agriculturae Scandinavica Section A-Animal Science最新文献

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Segment-based coancestry, additive relationship and genetic variance within and between the Norwegian and the Swedish Fjord horse populations 挪威和瑞典峡湾马种群内部和之间的共同祖先、加性关系和遗传变异
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-02-04 DOI: 10.1080/09064702.2019.1711155
H. F. Olsen, S. Tenhunen, N. I. Dolvik, D. I. Våge, G. Klemetsdal
{"title":"Segment-based coancestry, additive relationship and genetic variance within and between the Norwegian and the Swedish Fjord horse populations","authors":"H. F. Olsen, S. Tenhunen, N. I. Dolvik, D. I. Våge, G. Klemetsdal","doi":"10.1080/09064702.2019.1711155","DOIUrl":"https://doi.org/10.1080/09064702.2019.1711155","url":null,"abstract":"ABSTRACT The Fjord horse originates from Norway but forms a global population due to several small populations in foreign countries. There exists no information about the additive relationship and the genetic variance between these subpopulations. By collecting blood samples from Norwegian and Swedish Fjord horses, a sample of 311 Norwegian and 102 Swedish horses gave 485,918 SNPs available for analysis. Their inbreeding coefficients were calculated and compared to the pairwise coancestry and the shared genomic segments. The effective population size was almost similar with the two methods in the Norwegian Fjord horse population (63 and 71), but very different in the Swedish population (269 and 1136) and unprecise due to a much smaller number of observations. The study showed that coancestry from shared genomic segments can be used to estimate additive genetic relationship and genetic variation within and between the global populations of the Fjord horse.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88376933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Genetic differentiation between subpopulations of Swedish mountain (Fjäll and Fjällnära) cattle 瑞典山牛(Fjäll和Fjällnära)亚群的遗传分化
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2019-12-23 DOI: 10.1080/09064702.2019.1704857
A. Johansson, M. Upadhyay, E. Strandberg, S. Eriksson
{"title":"Genetic differentiation between subpopulations of Swedish mountain (Fjäll and Fjällnära) cattle","authors":"A. Johansson, M. Upadhyay, E. Strandberg, S. Eriksson","doi":"10.1080/09064702.2019.1704857","DOIUrl":"https://doi.org/10.1080/09064702.2019.1704857","url":null,"abstract":"ABSTRACT The Swedish Mountain (Fjäll) cattle and the subpopulation Fjällnära originates from northern Sweden. They are differentiated from both traditional and commercial cattle from southern Sweden. We analysed data from the GGP HD150k SNP array and investigated genetic diversity and differences between Fjäll and Fjällnära, and between different groups of Fjällnära. We found that the Fjällnära can be divided into four groups, which are differentiated from each other and from the other Fjäll cattle. We also compared allele frequencies between different groups of Fjäll and Fjällnära for some of the functional SNPs included in the SNP array. Interestingly, the B allele of Beta lactoglobulin has a very high frequency (94%) in the Fjällnära cattle, which is significantly different from the frequency in the Fjäll cattle (60%). Comparing older samples of Fjäll cattle with more recent samples, we found a significant increase in the frequency of the B allele in Fjäll cattle.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2019-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90849044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Clustering the relationship matrix as a supportive tool to maintain genetic diversity in the Scandinavian cold-blooded trotter 聚类的关系矩阵作为一种支持工具，以保持遗传多样性的斯堪的纳维亚冷血蹄
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-11-13 DOI: 10.1080/09064702.2018.1542452
H. F. Olsen, G. Klemetsdal
{"title":"Clustering the relationship matrix as a supportive tool to maintain genetic diversity in the Scandinavian cold-blooded trotter","authors":"H. F. Olsen, G. Klemetsdal","doi":"10.1080/09064702.2018.1542452","DOIUrl":"https://doi.org/10.1080/09064702.2018.1542452","url":null,"abstract":"ABSTRACT In the joint breeding population of the Norwegian and North-Swedish cold-blooded trotters, formerly suggested actions concerning sire selection strategies due to reduced genetic variation have not been implemented. The aim of this study was therefore to update the status regarding genetic variation and to explore the cluster structure and evaluate if such a tool could give an immediate action to maintain the diversity. This study reports that the joint population is approaching a bottleneck, and clustering of the additive relationship matrix of one year-class showed that some smaller clusters existed, mainly in the Swedish part of the joint population. Through active recruitment of sires in these clusters, there is a potential for maintaining the genetic variation. Development of an interactive mating tool is essential, realizing real-time subscription of mares to sires on basis of knowledge of the cluster structure, which would give an immediate, practical solution close to minimum coancestry mating.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78624586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Canola meal as an alternative dietary protein source in quail (Coturnix coturnix) diets – A review 在鹌鹑(Coturnix Coturnix)日粮中作为替代蛋白质来源的油菜籽粕-综述
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2019.1679873
C. M. Mnisi, V. Mlambo
{"title":"Canola meal as an alternative dietary protein source in quail (Coturnix coturnix) diets – A review","authors":"C. M. Mnisi, V. Mlambo","doi":"10.1080/09064702.2019.1679873","DOIUrl":"https://doi.org/10.1080/09064702.2019.1679873","url":null,"abstract":"ABSTRACTFast-growing and highly adaptable avian species such as the Japanese quail (Coturnix coturnix japonica) have greater potential for use in alleviating food and nutrition insecurity. However,...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78919548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Dose–response effect of a pine bark extract on in vitro ruminal ammonia and methane formation kinetics 松皮提取物对体外瘤胃氨和甲烷生成动力学的量效效应
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2019.1694575
N. Vera, C. Gutiérrez, R. Allende, P. Williams, C. Fuentealba, J. Ávila-Stagno
{"title":"Dose–response effect of a pine bark extract on in vitro ruminal ammonia and methane formation kinetics","authors":"N. Vera, C. Gutiérrez, R. Allende, P. Williams, C. Fuentealba, J. Ávila-Stagno","doi":"10.1080/09064702.2019.1694575","DOIUrl":"https://doi.org/10.1080/09064702.2019.1694575","url":null,"abstract":"This study assessed the potential of a pine bark extract (PBE) to decrease methane (CH4) and ammonia nitrogen (NH3-N) production in vitro. Dietary substrates, mixed hay, soybean meal and corn grain...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77271053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Electronic feed stations for feeding concentrates to pregnant ewes on commercial sheep farms 用于商业羊场妊娠母羊饲喂精料的电子饲料站
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2019.1692898
K. Bøe, Tor Gunnarson Homme, G. H. Jørgensen
{"title":"Electronic feed stations for feeding concentrates to pregnant ewes on commercial sheep farms","authors":"K. Bøe, Tor Gunnarson Homme, G. H. Jørgensen","doi":"10.1080/09064702.2019.1692898","DOIUrl":"https://doi.org/10.1080/09064702.2019.1692898","url":null,"abstract":"The aim of this study was to investigate the use and capacity of electronic feed stations (EFS) on commercial sheep farms. The study was conducted on four commercial farms and the numbers of pregna...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77964090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estrous synchronization in ewes: The use of progestogens and prostaglandins 母羊的发情同步:孕激素和前列腺素的使用
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2019.1674373
X. Yu, J. Wang, Y. Bai
{"title":"Estrous synchronization in ewes: The use of progestogens and prostaglandins","authors":"X. Yu, J. Wang, Y. Bai","doi":"10.1080/09064702.2019.1674373","DOIUrl":"https://doi.org/10.1080/09064702.2019.1674373","url":null,"abstract":"This review summarizes the first principles, hormone types, and applied research related to the synchronization of estrus in ewes. The hormones used to induce synchronization include progestogens, ...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87729621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour 在全混合日粮中添加精加工青贮对生长猪青贮消耗、营养物质消化率和猪行为的影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2020.1725104
M. Presto Åkerfeldt, S. Holmström, A. Wallenbeck, E. Ivarsson
{"title":"Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour","authors":"M. Presto Åkerfeldt, S. Holmström, A. Wallenbeck, E. Ivarsson","doi":"10.1080/09064702.2020.1725104","DOIUrl":"https://doi.org/10.1080/09064702.2020.1725104","url":null,"abstract":"This study investigated how intensively manipulated grass/clover silage (finer structure than chopped silage) fed in total mixed ration (TMR), influenced feed consumption, total tract apparent dige...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88213169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Finding best exotic breed proportion in crossbred lactating sheep kept under farmers’ conditions in Ethiopia determined by use of nested Legendre polynomials with limited data 利用有限数据的嵌套勒让德多项式确定埃塞俄比亚农民条件下杂交泌乳羊的最佳外来品种比例
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2020.1717591
W. Haile, S. Banerjee, A. Ayele, T. Mestawet, G. Klemetsdal, T. Ådnøy
{"title":"Finding best exotic breed proportion in crossbred lactating sheep kept under farmers’ conditions in Ethiopia determined by use of nested Legendre polynomials with limited data","authors":"W. Haile, S. Banerjee, A. Ayele, T. Mestawet, G. Klemetsdal, T. Ådnøy","doi":"10.1080/09064702.2020.1717591","DOIUrl":"https://doi.org/10.1080/09064702.2020.1717591","url":null,"abstract":"The present study was conducted to estimate milk production performance and fit lactation curves for groups of ewes of Local and of Awassi crosses, with a variable blood level, reared under farmer’...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82985505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Suckler cow efficiency – breed by environment interactions in commercial herds under various natural production conditions 不同自然生产条件下商品畜群环境相互作用下的乳牛繁殖效率
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-10-02 DOI: 10.1080/09064702.2020.1717592
M. S. Wetlesen, B. A. Åby, O. Vangen, L. Aass
{"title":"Suckler cow efficiency – breed by environment interactions in commercial herds under various natural production conditions","authors":"M. S. Wetlesen, B. A. Åby, O. Vangen, L. Aass","doi":"10.1080/09064702.2020.1717592","DOIUrl":"https://doi.org/10.1080/09064702.2020.1717592","url":null,"abstract":"The significance of breed by environment interaction on suckler cow efficiency traits was investigated, using production data from the Norwegian Beef Cattle Recording System and data collected (fee...","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78640385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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