发布求助
文献互助 智能选刊 最新文献

Acta Agriculturae Scandinavica Section A-Animal Science最新文献

筛选
英文 中文
Premie race participation is associated with increased career longevity and prize money earnings in Norwegian-Swedish Coldblooded Trotters 在挪威-瑞典混血的冷血赛马中，参加顶级比赛与职业生涯寿命延长和奖金收入增加有关
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-04-03 DOI: 10.1080/09064702.2018.1563211
E. Todd, K. Jäderkvist Fegraeus, P. Thomson, C. Ihler, E. Strand, G. Lindgren, B. Velie
{"title":"Premie race participation is associated with increased career longevity and prize money earnings in Norwegian-Swedish Coldblooded Trotters","authors":"E. Todd, K. Jäderkvist Fegraeus, P. Thomson, C. Ihler, E. Strand, G. Lindgren, B. Velie","doi":"10.1080/09064702.2018.1563211","DOIUrl":"https://doi.org/10.1080/09064702.2018.1563211","url":null,"abstract":"ABSTRACT Norwegian-Swedish Coldblooded Trotters can participate in premie races as two year olds, where prize money is awarded for finishing the race within a specific time interval rather than winning. In this study, the association with premie race participation and future competitive racing success was evaluated. Analyses including all raced horses born between 2000 and 2009 (n = 9350) showed a relationship between premie race participation with reduced career longevity and prize money earnings. However, when analyses only included horses that raced competitively (n = 7497; i.e. horses with participation in only premie or qualification races were excluded), premie race participation was associated with increased racing success. These findings indicate that premie race fields consist of both horses with good racing ability as well as horses with limited talent. Overall this study shows that premie racing is likely to be beneficial for both the horse and the trainer.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"35 1","pages":"112 - 116"},"PeriodicalIF":0.9,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88435531","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
Genetic diversity and historic introgression in German Angler and Red Dual Purpose cattle and possibilities to reverse introgression 德国盎格鲁和红双用途牛的遗传多样性和历史遗传渐渗及逆转遗传渐渗的可能性
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-04-03 DOI: 10.1080/09064702.2019.1600011
J. Schäler, R. Wellmann, J. Bennewitz, G. Thaller, D. Hinrichs
{"title":"Genetic diversity and historic introgression in German Angler and Red Dual Purpose cattle and possibilities to reverse introgression","authors":"J. Schäler, R. Wellmann, J. Bennewitz, G. Thaller, D. Hinrichs","doi":"10.1080/09064702.2019.1600011","DOIUrl":"https://doi.org/10.1080/09064702.2019.1600011","url":null,"abstract":"ABSTRACT Recovering native uniqueness has major importance for breeds with historic introgression. The aim of the study was to estimate population genetic parameters for two local red cattle breeds from Northern Germany and to study possibilities to reverse introgression. Genealogical information consisted of 90,783 individuals for German Angler and 187,255 individuals for Red Dual-Purpose cattle breed, with additional information on sex, born, breed, status, and conventional breeding values. It is concluded that the native genetic contribution could be included as an additional trait in the total merit index in order to recover a part of the native genetic background. Native contributions should be estimated in the long term from marker data in order to account for Mendelian sampling. The maintenance of a sufficient genetic diversity of native alleles can be achieved by an advanced OCS with appropriate constraints.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"38 1","pages":"63 - 72"},"PeriodicalIF":0.9,"publicationDate":"2018-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73615045","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
Incorporation of observations with different residual error variances into existing complex test-day models 将不同残差方差的观测值纳入现有的复杂测试日模型
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-01-02 DOI: 10.1080/09064702.2018.1541361
T. Pitkänen, E. Mäntysaari, U. S. Nielsen, G. P. Aamand, P. Madsen, J. Eriksson, M. Lidauer
{"title":"Incorporation of observations with different residual error variances into existing complex test-day models","authors":"T. Pitkänen, E. Mäntysaari, U. S. Nielsen, G. P. Aamand, P. Madsen, J. Eriksson, M. Lidauer","doi":"10.1080/09064702.2018.1541361","DOIUrl":"https://doi.org/10.1080/09064702.2018.1541361","url":null,"abstract":"ABSTRACT Automated milking systems (AMS) have become popular on dairy farms. Due to a different test-day recording scheme the variation of test-day observations differ from AMS differ from those of conventional milking system (CMS). An approach is presented for upgrading the genetic evaluation model for production traits milk, protein and fat yield by including residual covariance matrices for AMS and CMS test-day observations. Residual variances were found to be 16–37% smaller for milk and protein yields and 42–47% larger for fat yield when recorded under AMS herds compared to CMS herds. Daily heritability was higher for milk and protein yield and lower for fat yield when traits were recorded under AMS compared to recording under CMS. No difference was found between AMS and CMS in 305-day heritability for milk and protein yield except for second lactation milk yield. 305-day heritability for fat was lower for all lactations under AMS.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"158 1","pages":"11 - 24"},"PeriodicalIF":0.9,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77139653","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
Effects of sensor location during in situ measurements on pH in caecal digesta of the horse, and post-observational treatment of sensor data 原位测量中传感器位置对马盲肠食糜pH值的影响，以及传感器数据的观察后处理
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-01-02 DOI: 10.1080/09064702.2018.1540656
J. A. Næsset, K. Hove, R. B. Jensen
{"title":"Effects of sensor location during in situ measurements on pH in caecal digesta of the horse, and post-observational treatment of sensor data","authors":"J. A. Næsset, K. Hove, R. B. Jensen","doi":"10.1080/09064702.2018.1540656","DOIUrl":"https://doi.org/10.1080/09064702.2018.1540656","url":null,"abstract":"ABSTRACT Measurements of caecal pH are useful when studying the effect of a ration on the hindgut environment in horses. Frequent in situ measurements of caecal pH have been used to measure short-term changes in pH. However, this method also results in a large and complex data set. Transient random influxes of alkaline content from the small intestine might result in short-time elevations in caecal pH that complicates data processing. We used two caecal-cannulated horses fed two different rations in a cross-over design experiment. We compared frequent in situ measurements of caecal pH measured with an unweighted and a weighted pH electrode. Based on our results, we recommend to use a weighted pH electrode situated in the deeper layers of the caecum compared to an unweighted. If an unweighted electrode is used, we present a peak-detecting algorithm to eliminate short-time elevation peaks caused by the ileal influx.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"2005 1","pages":"33 - 38"},"PeriodicalIF":0.9,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86265912","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
Activity patterns of free-ranging beef cattle in Norway 挪威自由放养肉牛的活动模式
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-01-02 DOI: 10.1080/09064702.2018.1524928
M. Tofastrud, Hilde Hegnes, Olivier Devineau, B. Zimmermann
{"title":"Activity patterns of free-ranging beef cattle in Norway","authors":"M. Tofastrud, Hilde Hegnes, Olivier Devineau, B. Zimmermann","doi":"10.1080/09064702.2018.1524928","DOIUrl":"https://doi.org/10.1080/09064702.2018.1524928","url":null,"abstract":"ABSTRACT The aims of this study were to: 1) build a model to classify cattle activities based on locomotion and neck movement data and 2) study the daily time budget of non-native beef cattle in the boreal forest of southeastern Norway. We used GPS collars programmed to take positions and activity measures every five minutes on 18 cows during the grazing seasons 2015–17, together with behavioural observations in the field. The model classified the collar data into Grazing, Low (resting behaviours) and High (other active behaviours) activity with an accuracy of 79.4%. The cows spent 8.1 ± 0.5 (mean ± SD) hours per day grazing, corresponding to 34% ± 0.5% of their daily time budget. Daily grazing time increased during summer and was longer for lactating than dry cows and at low compared to high stocking density.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"1 1","pages":"39 - 47"},"PeriodicalIF":0.9,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81143243","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: 11
On farm observations to increase genetic gain in breeding schemes for village poultry production – A simulation study 在农村家禽生产育种计划中增加遗传增益的农场观察-模拟研究
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-01-02 DOI: 10.1080/09064702.2018.1543444
T. T. Chu, J. Bastiaansen, E. Norberg, P. Berg
{"title":"On farm observations to increase genetic gain in breeding schemes for village poultry production – A simulation study","authors":"T. T. Chu, J. Bastiaansen, E. Norberg, P. Berg","doi":"10.1080/09064702.2018.1543444","DOIUrl":"https://doi.org/10.1080/09064702.2018.1543444","url":null,"abstract":"ABSTRACT To improve genetic gain of breeding programs for village poultry production, breeding schemes with observations obtained in village production systems using individual (VIO) and group recording (VGO) were examined under different levels of genotype-by-environment-interactions (GxE). GxE was modeled by varying the correlation between traits measured in the breeding station and village environments for bodyweight (rg_BW) and egg production (rg_EP). Relative and absolute genetic gains obtained from VIO and VGO were used for comparison between the schemes. Results showed that village observations significantly improved genetic gains compared to the scheme without birds tested in the village. The improvement was only slightly larger with individual observations than with group observations. Higher rg_BW and rg_EP led to lower relative genetic gain, but a higher absolute gain of VIO and VGO. It is recommended to apply a breeding scheme using group recording of village performance when strong GxE in breeding for village poultry is expected.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"117 1","pages":"1 - 10"},"PeriodicalIF":0.9,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88473267","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
Ranking cows’ methane emissions under commercial conditions with sniffers versus respiration chambers 用嗅探器和呼吸室对商业条件下奶牛的甲烷排放量进行排名
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-01-02 DOI: 10.1080/09064702.2019.1572784
G. Difford, G. Difford, D. W. Olijhoek, A. Hellwing, Peter Lund, M. Bjerring, Y. D. Haas, J. Lassen, P. Løvendahl
{"title":"Ranking cows’ methane emissions under commercial conditions with sniffers versus respiration chambers","authors":"G. Difford, G. Difford, D. W. Olijhoek, A. Hellwing, Peter Lund, M. Bjerring, Y. D. Haas, J. Lassen, P. Løvendahl","doi":"10.1080/09064702.2019.1572784","DOIUrl":"https://doi.org/10.1080/09064702.2019.1572784","url":null,"abstract":"ABSTRACT This study assessed the ranking of dairy cows using individual-level correlations for methane (CH4) emission on-farm using sniffers and in respiration chambers. In total 20 lactating dairy cows, ten Holstein and ten Jerseys were recorded using sniffers installed in milking robots for three weeks of lactation and subsequently in respiration chambers (RC) where they were each recorded on three occasions within the RC. Bivariate linear mixed models were used to determine the individual-level correlations (rI) between sniffer and RC phenotypes as proxies for genetic correlations. Despite differences in feeding and management, the predicted CH4 production from sniffers correlated highly with RC CH4 production rI = 0.77 ± 0.18 and CH4 breath concentration correlated nearly as well with RC CH4 production rI = 0.75 ± 0.20. These correlations between sniffers on-farm and RC demonstrate the potential of sniffers measurements as large-scale indicator traits for CH4 emissions in dairy cattle.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"115 1","pages":"25 - 32"},"PeriodicalIF":0.9,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80886391","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: 22
The effect of feed barrier design on displacements during feeding of dairy cows in small herds 饲料屏障设计对小群奶牛采食位移的影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2018-01-02 DOI: 10.1080/09064702.2018.1555276
K. Bøe, G. Hansen, L. Ruud
{"title":"The effect of feed barrier design on displacements during feeding of dairy cows in small herds","authors":"K. Bøe, G. Hansen, L. Ruud","doi":"10.1080/09064702.2018.1555276","DOIUrl":"https://doi.org/10.1080/09064702.2018.1555276","url":null,"abstract":"ABSTRACT The aim of this study was to investigate the effect of feed barrier design on displacements in dairy cows fed only roughage diets in the bunk in small commercial dairy herds. Six Norwegian dairy herds with open barriers (OB) and six herds with individual headspace barriers (IHB) were randomly selected. Number of displacements and withdrawals without physical contact was somewhat higher, but not significantly higher, in the IHB herds than in the OB herds but the variation between herds within the type of barrier were very large. The number of pushes and buttings directed towards the front part of the body of cows was significantly higher in the OB herds than in the IHB herds whereas pushes and butts directed towards the side of cows were significantly higher in the IHB herds than in the OB herds.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"24 1","pages":"48 - 51"},"PeriodicalIF":0.9,"publicationDate":"2018-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77102625","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
Possible consequences of the Nagoya Protocol for animal breeding and the worldwide exchange of animal genetic resources 《名古屋议定书》对动物育种和全球动物遗传资源交换可能产生的影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2017-10-02 DOI: 10.1080/09064702.2018.1435714
E. Martyniuk, B. Berger, D. Bojkovski, D. Bouchel, S. Hiemstra, C. Marguerat, V. Mátlová, N. Sæther
{"title":"Possible consequences of the Nagoya Protocol for animal breeding and the worldwide exchange of animal genetic resources","authors":"E. Martyniuk, B. Berger, D. Bojkovski, D. Bouchel, S. Hiemstra, C. Marguerat, V. Mátlová, N. Sæther","doi":"10.1080/09064702.2018.1435714","DOIUrl":"https://doi.org/10.1080/09064702.2018.1435714","url":null,"abstract":"ABSTRACT The paper discusses animal genetic resources in the context of the Nagoya Protocol, providing an overview of the distinctive features and practices in this sector of genetic resources. It presents how animal genetic resources are utilized, who are the users and providers, and what are the trends in gene flow of these resources. The paper reflects on current access measures and arrangements for local breeds and for international commercial breeds. Key benefits arising from the international exchange of animal genetic resources for research and livestock production and current developments in the sector supporting the implementation of the Nagoya Protocol are presented. References to the scope and application of EU ABS legislation are also made. The paper underlines the importance of continuous undisturbed access to animal genetic resources for research and breeding to facilitate further development within the global livestock sector.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"5 1","pages":"106 - 96"},"PeriodicalIF":0.9,"publicationDate":"2017-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82209360","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
Influence of different substitutions of ground-to-whole sorghum grain in high-concentrate diets on weight gain, Longissimus dorsi area and subcutaneous fat of growing goats 高精料饲粮中高粱磨全粒不同替代量对生长山羊增重、背最长肌面积和皮下脂肪的影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2017-10-02 DOI: 10.1080/09064702.2018.1473480
F. Montemayor, M. Domínguez-Muñoz, C. C. Zapata-Campos, J. Salinas-Chavira
{"title":"Influence of different substitutions of ground-to-whole sorghum grain in high-concentrate diets on weight gain, Longissimus dorsi area and subcutaneous fat of growing goats","authors":"F. Montemayor, M. Domínguez-Muñoz, C. C. Zapata-Campos, J. Salinas-Chavira","doi":"10.1080/09064702.2018.1473480","DOIUrl":"https://doi.org/10.1080/09064702.2018.1473480","url":null,"abstract":"ABSTRACT The effect of different proportions of ground-to-whole sorghum grain on weight gain, Longissimus dorsi area (LDA) and subcutaneous fat (SF) was evaluated in 20 crossbred (75% Alpine and 25% Spanish) female kid goats, 75 d of age (12.9 ± 1.8 kg BW [body weight]) fed a diet (14% CP [crude protein], 2.57 Mcal/kg ME [metabolizable energy]) in which whole sorghum grain (WSG) substituted for 0%, 25% and 50% of ground sorghum grain for treatments T1 (n = 7), T2 (n = 7) and T3 (n = 6), respectively. At the end of the 122-d feeding trial, goats were evaluated using ultrasound for LDA and SF. There were no differences (P > .05) among treatments in average daily gain (183, 183 and 190 g/d) and LDA (14.02, 13.70 and 14.70 cm2). SF decreased (linear effect; P = .05) with an increase in dietary WSG. In conclusion, feedlot goats exhibited adequate growth performance using diets with up to 50% WSG, without negative effect on LDA, although SF decreased with WSG increase.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"73 1","pages":"139 - 143"},"PeriodicalIF":0.9,"publicationDate":"2017-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77392301","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信