China Animal Husbandry & Veterinary Medicine ›› 2009, Vol. 36 ›› Issue (7): 15-16.

• 动物营养与饲料科学 • Previous Articles     Next Articles

Fattening Effect of Different Concentrate Supplementing Levels and Silage on Tibetan Sheep

FENG Bing-fu1，2，3，ZHAO Xin-quan2，XU Shi-xiao2，ZHAO Liang2   

  1. （1.Qinghai Vocational and Technique College of Animal Husbandry and Veterinary Medicine, Huangyuan 812100, China;2.Northwest Institute of Plateau Biology, CSC, Xining 810001，China; 3.Graduate University of Chinese Academy of Science, Bejing 100049, China）
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-20 Published:2009-07-20
  • Contact: ZHAO Xin-quan

Abstract: 20 castrated Tibetan sheep which were randomly divided into four treatments (group Ⅰ, group Ⅱ, group Ⅲ and groupⅣ)were adopted to investigate the effect of different concentrate levels(150，300，450 g/d) and silage on production performance． The results indicated that average daily gain(ADG)of four groups were （41.00±5.48），（63.00±8.37），（68.00±9.75），（69.00±9.2） g respectively．ADG of group Ⅳ was higher than that of group Ⅰ，significantly(P<0.01), ADG of group Ⅱ and group Ⅲ were higher than that of group Ⅰ，significantly(P<0.05), there was no significant difference among group Ⅱ, group Ⅲ and groupⅣ. The highest feed efficiency showed at 300 g/d concentrate leve1(group Ⅲ), and group Ⅱ (the silage) showed to be more economical than group Ⅲ.

Key words: Tibetan sheep; concentrate level; silage; average daily gain; feed efficiency

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