›› 2013, Vol. 40 ›› Issue (4): 99-104.

• 动物营养与饲料科学 • 上一篇    下一篇

不同牛场泌乳早期奶牛春季和夏季牛奶氨基酸含量的比较分析

张娟霞1,2, 孙鹏2, 杨永新2, 卜登攀2, 周凌云2, 杨晋辉2, 雒秋江1   

  1. 1. 新疆农业大学动物科学学院,新疆乌鲁木齐 830052;
    2. 中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室,北京 100193
  • 修回日期:2012-11-29 出版日期:2013-04-20 发布日期:2013-04-19
  • 通讯作者: 孙鹏(1979-),女,吉林人,助理研究员,研究方向:反刍动物营养。E-mail:sunfire101@163.com E-mail:sunfire101@163.com
  • 作者简介:张娟霞(1986-),女,兰州人,硕士生,研究方向:分子生物学。
  • 基金资助:
    "十二五"科技支撑计划(2012BAD12B02);动物营养学国家重点实验室自主研究课题(2004DA125184G1103)。

Comparison Study on Milk Amino Acids Composition of Dairy Cows from Different Farms in the Spring and the Summer

ZHANG Juan-xia1,2, Sun Peng2, YANG Yong-xin2, BU Deng-pan2, ZHOU Ling-yun2, YANG Jin-hui2, LUO Qiu-jiang1   

  1. 1. College of Animal Science,Xinjiang Agricultural University,Urumqi 830052, China;
    2. State Key Laboratory of Animal Nutrition,Institute of Animal Sciences,Chinese Academy of Agricultural Sciences,Beijing 100193,China
  • Revised:2012-11-29 Online:2013-04-20 Published:2013-04-19

摘要: 比较研究不同奶牛场、不同季节牛奶中氨基酸组成及含量的差异,探讨牛奶中氨基酸含量受其影响的变化规律,为改善乳品质提供一定的理论依据。采集北京、滁州、哈尔滨、呼和浩特、乌鲁木齐和西安6个地区奶牛场春季和夏季的奶样,经盐酸水解后采用日立L-8900型氨基酸自动分析仪测定其中17种氨基酸,试验数据通过SAS 8.0统计分析。结果显示,不同季节牛奶中的缬氨酸、酪氨酸、苯丙氨酸和半胱氨酸含量差异极显著(P<0.01),而其他13种氨基酸含量差异不显著(P>0.05);不同奶牛场牛奶氨基酸含量差异极显著(P<0.01),不同奶牛场春季和夏季互作效应对牛奶中氨基酸各组分含量均有极显著的影响(P<0.01)。因此,不同奶牛场牛奶氨基酸组分及含量差异显著(P<0.05),而季节因素对牛奶中缬氨酸、酪氨酸、苯丙氨酸和半胱氨酸含量影响较大。

关键词: 季节; 不同牛场; 氨基酸; 鲜牛奶

Abstract: The objective of this study was to assess raw milk amino acids composition in different farms between the spring and summer to provide a basis for improving the qualitiy of milk. Milk samples were collected from 6 cities (Beijing, Anhui, Heilongjiang, Neimeng, Xinjiang and Xi’an) in the spring and summer, respectively. Amino acids were extracted by hydrolyzed with HCl, and concentrations of amino acids were determined by Hitachi L-8900 high speed amino acid analyzer. The experimental datas were analyzed by SAS 8.0 with GLM procedure. The results showed that significant variation of Cys, Val, Tyr and Phe were determined between the spring and summer (P<0.01), while others were not siginificant differences (P>0.05). Significant difference of all amino acids existed among these six regions (P<0.01). The interaction effect between seasons and locality were highly significant on the amino acids concentrations of whole milk (P<0.01). It was concluded that amino acids in raw milk were influenced by locality significantly, while Cys, Val, Tyr and Phe were also affected by seasons.

Key words: seasons; locality; amino acids; raw milk

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