过瘤胃葡萄糖对泌乳早期奶牛体况、血清生化指标、产奶量、乳成分的影响  

Effects of rumen-passing glucose on body condition,serum biochemical indexes,milk yield and milk composition of dairy cows in early lactation

作　　者：张国华 李强 金振华 张备 王丽坤 薛沾枚 张艳 沈思思 杨昊天 陈国旺 海龙 吕思文 钟鹏 朱启涛 ZHANG Guohua;LI Qiang;JIN Zhenhua;ZHANG Bei;WANG Likun;XUE Zhanmei;ZHANG Yan;SHEN Sisi;YANG Haotian;CHEN Guowang;HAI Long;LYU Siwen;ZHONG Peng;ZHU Qitao(Branch of Animal Husbandry and Veterinary of Heilongjiang Academy of Agricultural Sciences,Qiqihar,Heilongjiang Province 161005,China;Hope Animal Hospital of Wangkui County,Suihua,Heilongjiang Province 152100,China;Agricultural Comprehensive Administrative Law Enforcement Brigade of Longsha District,Qiqihar City,Qiqihar,Heilongjiang Province 161005,China;Inner Mongolia Shengmu High-tech Farming Ltd,Hohhot,Inner Mongolia,010110,China)

机构地区：[1]黑龙江省农业科学院畜牧兽医分院,黑龙江齐齐哈尔161005 [2]望奎县希望动物医院,黑龙江绥化152100 [3]齐齐哈尔市龙沙区农业综合行政执法大队,黑龙江齐齐哈尔161005 [4]内蒙古圣牧高科牧业有限公司,内蒙古呼和浩特010110

出　　处：《中国饲料》2023年第15期94-98,共5页China Feed

基　　金：黑龙江省农业科技创新跨越工程农业科技关键技术创新重点攻关项目“草食家畜新品种选育推广与产业化应用”项目;大庆市指导性科技计划项目(zd-2021-65);2022年畜牧兽医分院分院自拟课题(ZNKT-202204)。

摘　　要：为研究过瘤胃葡萄糖(RPG)对泌乳早期奶牛产奶量以及血清生化指标的影响,试验将64头年龄、胎次、泌乳量接近,产后11~19 d奶牛随机分为对照组、150 g RPG组、225 g RPG组和300 g RPG组,试验周期7 d。结果表明:在试验第7天,300 g RPG组较对照组平均产奶量显著增加15.99%(P<0.05);225 g RPG组和300 g RPG组与对照组相比血糖水平极显著增加53.39%和107.62%(P<0.01);300 g RPG组血清β-羟丁酸水平较对照组降低81.81%(P<0.05);各试验组乳成分差异均不显著(P>0.05);300 g RPG组产奶利润有所增长,增长为8.87元/d。上述试验表明,饲喂RPG 300 g/(d·cow)时,对奶牛健康和养殖场效益最有利。In order to study the effect of rumen-protected glucose(RPG)on milk production and serum biochemical indexes of dairy cows in early lactation.A total of 64 dairy cows with similar age,parity,and milk production,and postpartum 11~19 days were randomly divided into control group,150 g RPG group,225 g RPG and 300 g RPG group,and the test period was 7 days.The results showed that on the 7th day of the experiment,compared with the control group,the average milk yield of 300 g RPG group was increased by 15.99%respectively(P<0.05).The blood glucose level in the 225 g RPG group and the 300 g RPG group was increased by 53.39%and 107.62%respectively(P<0.01);the serumβ-hydroxybutyrate in the 300 g RPG group was decreased by 81.81%respectively(P<0.05);there was no significant difference in milk composition between the experimental groups(P>0.05);The profit from milk production of the 300 g RPG group was increased by 8.87 RMB/d.The above experiments suggested that the feeding of RPG 300 g/(d·cow)was the most beneficial to the health of dairy cows and pasture benefits.

关 键 词：奶牛 过瘤胃葡萄糖 泌乳早期 能量负平衡 经济效益 

分 类 号：S816.7[农业科学—饲料科学]