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Effect of Different Feeding Conditions on Daily Gain and Serum Biochemical Indexes in Youth Xinjiang Brown Cattle

JULAITI-Abuduwaili1，REN Wan-ping1，ZHANG Hao2，LV Qiang1，YU Xiong1,3   

  1. (1.College of Animal Science，Xinjiang Agricultural University，Urumqi 830052，China；2.Yili Vocational and Technical College，Yining 835100，China；3. Xinjiang Meat and Milk Herbivore Animal Nutrition Laboratory，Urumqi 830052，China)

  • Received:2013-11-25 Online:2014-05-20 Published:2014-06-25

Abstract: The experiment was aimed to study the effect of different feeding conditions on the changes of daily gain and serum biochemical indexes level in different period of growing youth Xinjiang Brown cattle in growth process.Selected 68 16-months-old Xinjiang Brown cattle，and divided them into scattered group and tethered group.In the experiment，we measured daily gain and tested blood samples contents of albumin （ALB），globulin （GLB），total protein （TP），blood urea nitrogen （BUN），glutamic-oxaloacetic transaminase （GOT） and glutamic-pyruvic transaminase （GPT） in October，November and December 2012，and January，February 2013.The results showed that the scattered group daily gain was extremely significantly higher than that of tethered group in December 2012，January and February  2013 (P＜0.01).The serum content of ALB in scattered group was extremely significantly higher than that of tethered group in January 2013 (P＜0.01).The serum content of GLB in scattered group was significantly higher than that of tethered group in October，November and December 2012 （P<0.01, P＜0.05）.The serum content of TP in scattered group was significantly higher than that of tethered group in December 2012, January and February 2013 （P<0.01, P＜0.05）.The serum content of BUN in scattered group was extremely significantly higher than that of tethered group in October and November 2012 （P＜0.01）.The serum content of GOT in scattered group was significantly higher than that of tethered group in November，December 2012 and January 2013 （P<0.01, P＜0.05）.The serum content of GTP in scattered group was significantly higher than that of tethered group in January and February 2013 （P＜0.05）. In conclusion，under different feeding mode to fattening youth cattle，compared with tethered feeding mode，ad libitum scattered feeding mode could significantly improve the youth cattle’s daily gain，and also accelerate the digestion and metabolism，and various nutrients that forage provided can effectively be absorbed by the body and the protein synthesis.

Key words:

tethered; scattered; serum biochemical indexes; daily gain