Feeding graded levels of camelina expeller meal up to 20% of dietary dry matter decreases feed intake and milk production, but enhances concentrations in milk fat of n-3 fatty acids in dairy cows

IF 1.2 4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Canadian Journal of Animal Science Pub Date : 2023-08-02 DOI:10.1139/cjas-2023-0014
T. Mutsvangwa, Sarah Thomas, R. Newkirk
{"title":"Feeding graded levels of camelina expeller meal up to 20% of dietary dry matter decreases feed intake and milk production, but enhances concentrations in milk fat of n-3 fatty acids in dairy cows","authors":"T. Mutsvangwa, Sarah Thomas, R. Newkirk","doi":"10.1139/cjas-2023-0014","DOIUrl":null,"url":null,"abstract":"Eight Holstein cows were used in a replicated 4 × 4 Latin square design study to determine the effects of feeding 0, 10, 15 and 20% camelina expeller meal (CEM) on production and milk fatty acid profiles. Dry matter intake (DMI) and milk fat content decreased linearly, whereas milk yield decreased quadratically, as CEM increased. Milk fat concentration of C18:2n-6 and cis-9, trans-11 C18:2 increased linearly, whereas that of C18:3n-3 and trans-10, cis-12 C18:2 increased quadratically as CEM increased. Results show that CEM levels up to 20% decrease DMI and milk yield but increase milk contents of desirable omega-3 fatty acids.","PeriodicalId":9512,"journal":{"name":"Canadian Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2023-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian Journal of Animal Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1139/cjas-2023-0014","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0

Abstract

Eight Holstein cows were used in a replicated 4 × 4 Latin square design study to determine the effects of feeding 0, 10, 15 and 20% camelina expeller meal (CEM) on production and milk fatty acid profiles. Dry matter intake (DMI) and milk fat content decreased linearly, whereas milk yield decreased quadratically, as CEM increased. Milk fat concentration of C18:2n-6 and cis-9, trans-11 C18:2 increased linearly, whereas that of C18:3n-3 and trans-10, cis-12 C18:2 increased quadratically as CEM increased. Results show that CEM levels up to 20% decrease DMI and milk yield but increase milk contents of desirable omega-3 fatty acids.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
饲养分级水平的山茶蛋白粉(高达日粮干物质的20%)会降低奶牛的采食量和产奶量,但会提高奶牛乳脂中n-3脂肪酸的浓度
本试验采用4 × 4拉丁方设计,研究饲喂0、10、15%和20%亚麻荠粕(CEM)对荷斯坦奶牛产量和乳脂肪酸谱的影响。干物质采食量(DMI)和乳脂含量随CEM的增加呈线性下降,产奶量呈二次下降。随着CEM的增加,C18:2n-6和顺式-9、反式-11 C18:2的乳脂浓度呈线性增加,而C18:3n-3和反式-10、顺式-12 C18:2呈二次增加。结果表明,高达20%的CEM水平会降低DMI和牛奶产量,但会增加牛奶中所需的omega-3脂肪酸的含量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Canadian Journal of Animal Science
Canadian Journal of Animal Science 农林科学-奶制品与动物科学
CiteScore
2.30
自引率
0.00%
发文量
51
审稿时长
6 months
期刊介绍: Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.
期刊最新文献
Simulation of loading and unloading through ramps of different configuration: effects on the ease of handling and physiological response of pigs of two slaughter weights Comparative impact of conventional and alternative gut health management programs on plasma and tibia attributes in broiler chickens raised in commercial and research settings Characterization of First Cut Alfalfa and Grass Silage Management Practices on Canadian Dairy Farms A Review of Foot-Related Lameness in Feedlot Cattle Complete replacement of soybean meal with black soldier fly larvae meal in feeding program for broiler chickens from placement through to 49 days of age: impact on gastrointestinal, breast, skeletal, plasma, and litter attributes
×
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
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1