摘要
为研究娟珊牛和牦牛的杂交一代(娟犏牛)的泌乳性能和乳品质,选择健康状况良好的娟犏牛和甘南牦牛各10头,于2020年测定6—10月的挤奶量,并检测其常乳中乳蛋白、乳脂、乳糖等营养成分的含量和乳脂中脂肪酸的组成。结果表明:娟犏牛在6—10月的产奶量为972.60 kg,极显著高于甘南牦牛(P<0.01);娟犏牛常乳中乳蛋白、乳脂肪、非乳脂固体和乳糖含量略低于甘南牦牛,但两者间均差异不显著(P>0.05);娟犏牛乳脂中的正癸酸、月桂酸、花生四烯酸、二十碳五烯酸和芥酸含量均显著或极显著高于甘南牦牛(P<0.05或P<0.01)。综上所述,娟犏牛的产奶量优于甘南牦牛,且乳品质与甘南牦牛相当,更适宜于作为乳用犏牛在高寒牧区进行生产推广。
In order to investigate the lactation performance and milk quality of hybrid F1(Jersey cattle-yak)of Jersey cattle and yak,10 Jersey cattle-yaks and 10 Gannan yak in apparent good health were selected to determine the milk yield,and milk was collected to analyze various nutrients contents such as milk protein,butterfat,lactose,solids non-fat(SNF)and fatty acid composition. The results showed that the milk yield of Jersey cattle-yak from June to October in 2020 was 972.60 kg,which was higher than that of Gannan yak. Contents of milk protein,butterfat,lactose,and solids non-fat(SNF)in Jersey cattle-yak were slightly lower compared to that of Gannan yak(P>0.05). Moreover,contents of decanoic acid,lauric acid,arachidonic acid,eicosapentaenoic acid and erucic acid were significant higher than that of Gannan yak. In conclusion,Jersey cattle-yak has a better lactation performance,and its milk quality was comparable to Gannan yak. Jersey cattle-yak is suitable to use for milk production in Qinghai Tibetan Plateau area.
作者
吴晓云
刘东花
梁春年
郭宪
马晓明
褚敏
阎萍
WU Xiaoyun;LIU Donghua;LIANG Chunnian;GUO Xian;MA Xiaoming;CHU Min;YAN Ping(Lanzhou Institute of Husbandry and Pharmaceutical Sciences,Chinese Academy of Agricultural Science,Lanzhou730050,China;Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau,Ministry of Agriculture and Rural Affairs,Lanzhou730050,China;Key Laboratory for Yak Breeding Engineering,Lanzhou730050,China;Gansu Animal Husbandry Technology Extension Station,Lanzhou730030,China)
出处
《中国草食动物科学》
CAS
2023年第1期19-21,共3页
China Herbivore Science
基金
国家重点研发计划(2021YFD1600200)
中国农业科学院牦牛资源与育种创新团队(CAAS-ASTIP-2014-LIHPS)
中国农业科学院基本科研业务费院级统筹任务(Y2022LM10)。
关键词
娟姗牛
甘南牦牛
犏牛
产奶量
乳品质
脂肪酸组成
Jersey cattle
Gannan yak
cattle-yak
milk yield
milk quality
fatty acid composition
