›› 2011, Vol. 38 ›› Issue (5): 45-47.

• 生理生化 • Previous Articles     Next Articles

Effect of Chronic Cold Stress on Biochemical Indicators and Enzyme in Whey in Holstein Lactating Cows

LIANG Hong-yan, JIA Yong-quan, MIAO Shu-jun, HUANG Da-peng, HAN Hua   

  1. College of Animal Science & Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319,China
  • Received:2010-10-28 Revised:1900-01-01 Online:2011-05-20 Published:2011-05-20

Abstract: In order to observe the effect of chronic cold stress on biochemical indicators and enzyme in whey in Holstein lactating cows. The results showed that following the decreased of environmental temperature, the concentration of ALB,BUN,P in whey tended to rise, and TP,Ca tended to decreased,but there was no difference in Glu,CHO in groups(P>0.05).The activity of ALT,AST ALP and LDH in serum tended to decrease.It is suggested that some biochemical indicators and enzyme in whey in cows are changed with the chronic cold stress.

Key words: chronic cold stress; cows; whey; biochemical indicators; enzyme activity

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