首页 | 本学科首页   官方微博 | 高级检索  
     检索      

瘤胃发酵产物乙酸和丙酸比对奶牛生产性能及乳成分影响的荟萃分析
引用本文:罗治杰,马露,卜登攀,秦霞.瘤胃发酵产物乙酸和丙酸比对奶牛生产性能及乳成分影响的荟萃分析[J].中国畜牧兽医,2021,48(5):1613-1624.
作者姓名:罗治杰  马露  卜登攀  秦霞
作者单位:1. 沈阳农业大学畜牧兽医学院, 沈阳110866;2. 中国农业科学院北京畜牧兽医研究所, 动物营养国家重点实验室, 北京100193;3. CAAS-EIAR-ICRAF农林牧复合系统联合实验室, 北京100193
基金项目:中央级公益性科研院所基本科研业务费专项(2020-YWF-YB-07);中国农业科学院农业科技创新工程重大产出科研选题(CAAS-ZDXT2019004);中国农业科学院科技创新工程(ASTIP-IAS07-1);奶牛产业技术体系北京市创新团队(BAIC06-2020);国家自然科学基金资助项目(31702140)
摘    要:本研究旨在探讨瘤胃发酵产物乙酸、丙酸以及乙酸和丙酸比对奶牛干物质摄入量(DMI)、产奶量(MY)和乳成分的影响。通过回顾已发表文献,使用荟萃分析的方法构建模型并进行相应的回归分析和相关性分析。试验整理了关于奶牛生产性能的中文及英文相关文献51篇,共计181个处理,研究不同的饲料原料、营养成分、饲料添加剂对不同生理阶段泌乳奶牛瘤胃发酵指标及生产性能的影响。基于此51项试验的荟萃分析结果表明,与瘤胃内乙酸和丙酸产量相比,奶牛的产奶量(R2=-0.426,P<0.01)、乳脂率(R2=0.359,P<0.01)、乳脂产量(R2=-0.257,P<0.01)、挥发性脂肪酸(VFA)(R2=-0.226,P<0.05)和干物质采食量(DMI)(R2=-0.485,P<0.01)与瘤胃发酵产物乙酸和丙酸比有更强的相关性;瘤胃乙酸和丙酸比与奶牛的产奶量、乳脂率、乳脂产量和DMI存在极显著的一元线性回归关系(P<0.01),其比值的增加会导致DMI、产奶量、乳脂产量极显著降低(P<0.01),乳脂率极显著升高(P<0.01),瘤胃乙酸和丙酸的比值每增加1,乳脂率增加0.26%,奶牛的干物质摄入量、产奶量分别减少2.34和4.99 kg。通过荟萃分析发现,乙酸与丙酸的比值可以更科学地预测乳脂在乳中的占比且准确反应牛奶乳脂率的变化,为饲粮的选取及调控乳品质提供了参考价值。

关 键 词:乙酸和丙酸比  生产性能  乳成分  瘤胃发酵  荟萃分析  
收稿时间:2020-09-07

Meta-analysis:How the Ruminal Acetic Acid to Propionic Acid Ratio Affect the Production and Milk Composition of Dairy Cow
LUO Zhijie,MA Lu,BU Dengpan,QIN Xia.Meta-analysis:How the Ruminal Acetic Acid to Propionic Acid Ratio Affect the Production and Milk Composition of Dairy Cow[J].China Animal Husbandry & Veterinary Medicine,2021,48(5):1613-1624.
Authors:LUO Zhijie  MA Lu  BU Dengpan  QIN Xia
Institution:1. College of Animal Husbandry and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China;2. State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;3. CAAS-EIAR-ICRAF Joint Laboratory on Agroforestry and Sustainable Animal Husbandry, Beijing 100193, China
Abstract:This study aimed to determine the effect of rumen fermentation products of acetic acid and propionic acid as well as acetic acid to propionic acid ratio on dry matter intake,milk yield,and milk composition in dairy cow.By reviewing the published literature,a model was constructed using meta-analysis method to perform regression analysis and correlation analysis.A total of 181 treatments have been sorted out from 51 related literatures.The articles described the effects of different feed ingredients,nutrients,and feed additives on the rumen fermentation indicators and production performance of lactating dairy cows at different physiological stages.The results of meta-analysis of 51 experiments showed that,compared to rumen fermentation production of acetic acid and propionic acid,acetic acid to propionic acid ratio was more closely related to milk yield (R2=-0.426,P<0.01),milk fat percentage (R2=0.359,P<0.01),milk fat yield (R2=-0.257,P<0.01),volatile fatty acid (R2=-0.226,P<0.05),and dry matter intake (R2=-0.485,P<0.01).There was a extremely significant unary linear regression between acetic acid to propionic acid ratio and dry matter intake,milk fat yield,milk production,and milk fat percentage (P<0.01).Dry matter intake,milk fat yield,milk production would decrease extremely significantly when the ratio of acetic acid to propionic acid increased and milk fat percentage would increase extremely significantly (P<0.01).When the ratio of acetic acid to propionic acid in the rumen increased by 1,the milk fat proportion increased by 0.26%,and the dry matter intake,and milk production of dairy cows decreased by 2.34 and 4.99 kg respectively.Through meta-analysis,it was found that acetic acid to propionic acid ratio could predict the proportion of milk fat in milk more scientifically,and accurately reflect the change of milk fat rate.This study could provide reference for the selection of diet and the regulation of milk quality.
Keywords:acetic acid to propionic acid ratio  production performance  milk composition  rumen fermentation  meta analysis  
本文献已被 CNKI 等数据库收录!
点击此处可从《中国畜牧兽医》浏览原始摘要信息
点击此处可从《中国畜牧兽医》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号