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Relationship of Icelandic cattle with Northern and Western European cattle breeds, admixture and population structure 冰岛牛与北欧和西欧牛品种的关系、杂交和种群结构
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-04-02 DOI: 10.1080/09064702.2019.1699951
E. Gautason, A. Schönherz, G. Sahana, B. Guldbrandtsen
{"title":"Relationship of Icelandic cattle with Northern and Western European cattle breeds, admixture and population structure","authors":"E. Gautason, A. Schönherz, G. Sahana, B. Guldbrandtsen","doi":"10.1080/09064702.2019.1699951","DOIUrl":"https://doi.org/10.1080/09064702.2019.1699951","url":null,"abstract":"ABSTRACT Icelandic cattle is believed to have been brought from Norway during the settlement of Iceland around AD 870-930. Previous research on genetic relationships has indicated that Icelandic cattle is most related to northern Nordic indigenous breeds. Using single nucleotide polymorphism genotype data from Icelandic cattle and 29 Northern and Western European cattle breeds, we studied relationships and admixture among these breeds, and assessed population structure in Icelandic cattle. Population structure analysis through principal component analysis, estimation of ancestry, and analysis of patterns of population splitting and mixing revealed that Icelandic cattle are most related to three Finncattle breeds (Eastern, Northern and Western Finncattle), and Swedish Mountain cattle. Icelandic cattle has very low levels of admixture. We observed very limited population structure in Icelandic cattle. The observed structure was due to variable sire contributions. Over 1000 years of almost complete isolation has made Icelandic cattle highly genetically distinct from other cattle breeds.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75150861","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: 16
Mineral and fatty acid composition of milk from native Jutland and Danish Red 1970 cattle breeds 来自日德兰半岛和丹麦红牛品种的牛奶的矿物质和脂肪酸组成
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-04-02 DOI: 10.1080/09064702.2019.1674914
N. Poulsen, B. Szekeres, M. Kargo, L. B. Larsen
{"title":"Mineral and fatty acid composition of milk from native Jutland and Danish Red 1970 cattle breeds","authors":"N. Poulsen, B. Szekeres, M. Kargo, L. B. Larsen","doi":"10.1080/09064702.2019.1674914","DOIUrl":"https://doi.org/10.1080/09064702.2019.1674914","url":null,"abstract":"ABSTRACT Mineral and fatty acid composition in milk from two minor native dairy breeds in Denmark; Danish Red 1970 (RDM-1970) and Jutland cows were analyzed. Results showed that for most compositional traits breed only played a minor role, whereas management and feeding played a significant role. Biodynamic management and very low milk yield resulted in a very characteristic fatty acid composition and a strongly elevated n-3/n-6 ratio (ratio 0.9 compared to 0.3). For milk minerals, RDM-1970 had significantly higher contents of P, Mg, Mn, whereas milk from Jutland cows had significantly higher K content.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87496175","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
Estimation of breed and heterosis effects for cow productivity, carcass traits and income in beef × beef and dairy × beef crosses in commercial suckler cow production 商品乳牛生产中牛×牛、乳×牛杂交对奶牛生产力、胴体性状和收入的品种和杂种优势效应评价
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-04-01 DOI: 10.1080/09064702.2020.1746825
M. S. Wetlesen, B. A. Åby, O. Vangen, L. Aass
{"title":"Estimation of breed and heterosis effects for cow productivity, carcass traits and income in beef × beef and dairy × beef crosses in commercial suckler cow production","authors":"M. S. Wetlesen, B. A. Åby, O. Vangen, L. Aass","doi":"10.1080/09064702.2020.1746825","DOIUrl":"https://doi.org/10.1080/09064702.2020.1746825","url":null,"abstract":"ABSTRACT This study aims to investigate calving difficulties, birth-, weaning- and carcass weight, herd life of cow, age at slaughter, average daily carcass gain, carcass conformation, carcass fatness and carcass income per carcass, kg or day, in Aberdeen Angus (A), Hereford (H), Charolais (C), Limousin (L), Simmental (S), Norwegian red (N) and their crosses, in order to evaluate crossbreeding strategies. Direct and maternal breed additive and heterosis effects and predicted phenotypic means were estimated with multiple regression using SAS. Crosses with N resulted in higher weaning weight and less calving difficulties than beef purebreds. Due to favourable maternal additive effects of N on carcass weight and -income, crosses with British breeds had higher performance than the purebreds. (A × C) × C had overall high performance due to beneficial maternal heterosis effects on calving difficulties and carcass weight. In conclusion, utilising profitable heterosis effects have potential in commercial production, but are dependent on production systems.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87020470","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
An endangered horse breed can be conserved by using optimum contribution selection and preselection of stallions 采用最优贡献选择和种马预选可以保护濒危马种
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-03-12 DOI: 10.1080/09064702.2020.1728370
H. Nielsen, M. Kargo
{"title":"An endangered horse breed can be conserved by using optimum contribution selection and preselection of stallions","authors":"H. Nielsen, M. Kargo","doi":"10.1080/09064702.2020.1728370","DOIUrl":"https://doi.org/10.1080/09064702.2020.1728370","url":null,"abstract":"The Jutland Horse is an original Danish horse breed and is regarded as Denmark’s national draft horse. It was previously used as a draught horse in the farming industry. The studbook dates back to 1881. After the World War II, the number of horses strongly decreased. Today the breed has around 100 breeding mares and 65 foals are born every year (Szekeres et al., 2016). Thus, as in other endangered breeds, the breed struggles to increase or at least maintain the number of breeding animals. A loss of such a local breed will mean a loss of cultural value (Meuwissen, 2009: Woolliams et al., 2005). In the 80s, the breed struggled with inbreeding related problems due to heavy use of few stallions. Since then, the breed organization of the Jutland Horse succeeded in increasing the number of horses. Because many young stallions (colts) are slaughtered before they reach maturity, the number of approved stallions each year is still low, facing the risk of a high rate of inbreeding. To maximize the effective population size, the optimal strategy is to have equal numbers of breeding females and males (Fernàndez et al., 2011). Thus, to maintain the Jutland Horse breed in the long term it is of high importance to increase the number of breeding sires. In order to increase the number of breeding sires, the breeding association for the Jutland Horse initiated in 2016 a project aiming at securing a larger number of stallions to be available for breeding, and furthermore increase the use of stallions having the lowest relationship to the breed in respectable of their conformation score. The aim of this study was to provide knowledge to serve as a basis for a conservation plan for the Jutland Horse in which sires were selected in two stages.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73324677","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
Propionic acid bacteria enhance ruminal feed degradation and reduce methane production in vitro 丙酸菌促进瘤胃饲料降解，降低体外甲烷产量
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-03-09 DOI: 10.1080/09064702.2020.1737215
Jikun Chen, O. M. Harstad, T. McAllister, P. Dörsch, H. Holo
{"title":"Propionic acid bacteria enhance ruminal feed degradation and reduce methane production in vitro","authors":"Jikun Chen, O. M. Harstad, T. McAllister, P. Dörsch, H. Holo","doi":"10.1080/09064702.2020.1737215","DOIUrl":"https://doi.org/10.1080/09064702.2020.1737215","url":null,"abstract":"ABSTRACT Thirty-one strains of propionic acid bacteria were screened for their effects on methane production and volatile fatty acid concentrations using in vitro assays of rumen fluid from Norwegian dairy cows and a grass silage–concentrate mixture as substrate. Nine of 31 strains were further analysed for effects on substrate degradation. Propionic acid bacteria led to reductions of up to 20% in methane production. Seven strains stimulated volatile fatty acid production, and in their presence in vitro substrate degradation tended to increase (P < .10). Most consistent results were found with Propionibacterium thoenii T159, which reduced methane production by 20% and caused 8% and 21% overall increases in substrate degradation and total volatile acid production, respectively (P < .05). Concomitant beneficial effects of a reduction in methane emissions and an increase in feed degradation suggest that this strain may be a promising tool for improving the productive performance of dairy cows.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81111412","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: 29
Genomic assessment of suitability of pigs for inclusion in the Pied Danish Pig conservation program – A case study 基因组评估猪的适用性，包括在花斑丹麦猪保护计划-一个案例研究
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-03-09 DOI: 10.1080/09064702.2020.1732455
B. Guldbrandtsen, V. Nielsen, A. Schönherz
{"title":"Genomic assessment of suitability of pigs for inclusion in the Pied Danish Pig conservation program – A case study","authors":"B. Guldbrandtsen, V. Nielsen, A. Schönherz","doi":"10.1080/09064702.2020.1732455","DOIUrl":"https://doi.org/10.1080/09064702.2020.1732455","url":null,"abstract":"ABSTRACT Breed assignment was performed for pigs putatively belonging to Pied Danish Pigs, an endangered Danish conservation breed. DNA array data were available for the candidates who had insufficient pedigree information. So were data for a reference population of animals from Danish conservation breeds as well as data from a range of Northern European pig breeds, and wild boar. Breed proportions were estimated using the program ADMIXTURE. Half the candidates were found to have at least 95% of their ancestry from Pied Danish Pigs. Several candidates showed varying degrees of admixture with other breeds, most notably Gloucester Old Spot. The same was observed for several of the Pied Danish Pig reference animals. The analyzes identified suitable breeding candidates and prevented unwanted recent admixture from spreading in the breeding population.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72592463","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
Assessing the genetic diversity conserved in the Norwegian live poultry genebank 评估挪威活禽基因库中保存的遗传多样性
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-02-28 DOI: 10.1080/09064702.2020.1727560
C. Brekke, L. Groeneveld, T. Meuwissen, N. Sæther, S. Weigend, P. Berg
{"title":"Assessing the genetic diversity conserved in the Norwegian live poultry genebank","authors":"C. Brekke, L. Groeneveld, T. Meuwissen, N. Sæther, S. Weigend, P. Berg","doi":"10.1080/09064702.2020.1727560","DOIUrl":"https://doi.org/10.1080/09064702.2020.1727560","url":null,"abstract":"ABSTRACT The aim of this study was to evaluate genetic diversity within and between lines at the Norwegian live poultry gene bank as well as assessing the conservation value in an international context. Eight lines including the national breed, Jærhøns, were genotyped with the 600K Affymetrix® Axiom® Chicken Genotyping Array. The white egg layers were generally more inbred than the brown layers. Comparative analyses were carried out with 72 international populations of different origins. The lines that were last bred for commercial production in Norway, Norbrid, are clearly separated from the rest of the international set and more closely related to the current commercial lines. The brown egg layer Norbrid 7 has the highest relative contribution to genetic diversity. The Norwegian genebank lines are of conservation value in a national and international perspective, as they all add genetic diversity to the global set.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84741469","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 characterization of a small closed island population of Norwegian coastal goat 挪威沿海山羊封闭岛屿小种群的遗传特征
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-02-24 DOI: 10.1080/09064702.2020.1729852
P. Berg, L. Groeneveld, C. Brekke, D. I. Våge, K. Sørheim, L. Grøva
{"title":"Genetic characterization of a small closed island population of Norwegian coastal goat","authors":"P. Berg, L. Groeneveld, C. Brekke, D. I. Våge, K. Sørheim, L. Grøva","doi":"10.1080/09064702.2020.1729852","DOIUrl":"https://doi.org/10.1080/09064702.2020.1729852","url":null,"abstract":"ABSTRACT The Norwegian coastal goat is a national and endangered breed. Coastal goat populations are mainly divided with a large mainland and two small island populations. The objective of this study is to describe genetic diversity in the feral Skorpa island population and its relationship to the mainland coastal goat population (Selje) using the Norwegian milk goat population as a reference. Analyses were based on 96 samples genotyped by the CaprineSNP50 Beadchip from three populations; 7 Skorpa (SK), 37 Selje (SE) and 52 Norwegian milk goats (MG). The SK population had significantly less genetic variation and higher levels of inbreeding than the two other populations. It was more distant from the two mainland populations than they were from each other. The marginal contribution of the SK population to genetic diversity was small. Means of introducing genetic diversity into the SK population should be considered if the population is prioritized for conservation.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83773574","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
Heritage Finnish Landrace chickens are genetically diverse and geographically structured 传统芬兰长白鸡具有遗传多样性和地理结构
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-02-21 DOI: 10.1080/09064702.2020.1727561
M. Berres, J. Kantanen, M. Honkatukia, A. Wolc, J. Fulton
{"title":"Heritage Finnish Landrace chickens are genetically diverse and geographically structured","authors":"M. Berres, J. Kantanen, M. Honkatukia, A. Wolc, J. Fulton","doi":"10.1080/09064702.2020.1727561","DOIUrl":"https://doi.org/10.1080/09064702.2020.1727561","url":null,"abstract":"ABSTRACT The Finnish Landrace breed of chickens (in Finnish suomalainen maatiaiskana) traces its origins to almost 1,000 years ago. Today, remnant populations of phenotypically distinct lineages are maintained by a network of volunteer hobbyists in Finland, managed by Natural Resources Institute Finland (Luke). Guided by a prior Major Histocompatibility Complex B-locus haplotype study, we sought now to characterize genetically Finnish Landrace chickens using denser genomic sampling. A new panel of 101 selectively neutral SNP sites was used to interrogate genetic variation in 192 individuals sampled from 13 putatively distinctive population units. Individuals partitioned into K = 11 genetic clusters characterized by high levels of genetic diversity, strong patterns of genetic structure and low levels of inbreeding. Evidence of an undocumented genetic lineage was also discovered. Facilitated by an inexpensive SNP assay, this study shows that the genetic integrity of the Finnish Landrace persists and represents a rich resource of natural (adaptive) genomic variation.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86365560","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
The status and need for characterization of Nordic animal genetic resources 北欧动物遗传资源鉴定的现状和需要
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-02-10 DOI: 10.1080/09064702.2020.1722216
Line Sass Kierkegaard, L. Groeneveld, A. Kettunen, P. Berg
{"title":"The status and need for characterization of Nordic animal genetic resources","authors":"Line Sass Kierkegaard, L. Groeneveld, A. Kettunen, P. Berg","doi":"10.1080/09064702.2020.1722216","DOIUrl":"https://doi.org/10.1080/09064702.2020.1722216","url":null,"abstract":"ABSTRACT The Nordic countries are committed to conserving farm animal genetic diversity. National reports on phenotypic and genetic characterization point towards a lack of characterization for many Nordic native breeds. Little to no knowledge on the traits of the animals and their derived products leads to potential remaining untapped. The objective of this study was to provide a quantitative assessment of phenotypic and genetic characterization of Nordic native breeds, through a literature search and obtaining census data. Six species and a total of 85 breeds were included. Studies were classified according to six different categories of characterization. Results showed that a large percentage of the breeds are not characterized at all. Moreover, most breeds have extremely low census sizes. A substantial effort to increase population sizes and document characteristics of Nordic native breeds, to promote conservation and sustainable use, is needed.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73791705","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: 4
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