天祝白牦牛的毛绒生产性能

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Bibliographic Details
Published in动物与饲料科学：英文版 no. 3; pp. 4 - 6
Main Author 牛春娥 张利平 鬲雅琴 梁春年 李维红 魏云霞
Format Journal Article
LanguageEnglish
Published 2009
Subjects
ING
产品开发
天祝白牦牛
头发
毛产量
生产性能
男性
绒毛
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Bibliography:Tianzhu white yak; Hair and villusi Production performance
[ Objective ] To analyze the hair and villus production performance of Tianzhu white yak and thus provide conditions for the genetic breed ing and product development. [Method] The hair and villus yield as well as villus rate of male and female Tianzhu white yaks from one year to six years old was detected and the villus yield was also determined. And these indexes of hair and villus were analyzed to evaluate the production per formance. [ Result] In Tianzhu white yaks from one year to two years old, the hair and villus yield was lower, but the villus rate and yield were high er. The hair and villus yield, villus rate, and villus yield were all higher in Tianzhu white yaks from three years to six years old but significantly de creased in 7yearold Tianzhu white yaks. In addition, the hair and villus yield was significantly （ P 〈 0.05） or very significantly （ P 〈 0.01 ） higher in male yaks than in female yaks. The villus rate was very significantly （ P 〈0.01 ） higher than in female yaks from five years to seven years old than in male yaks at the same age. [ Conclusion] Tianzhu white yaks from one year to two years old have the best hair and villus production perform ance; Tianzhu white yaks from three years to six years old are in the main phase of hair and villus production; Tianzhu white yaks older than seven years old should not be used for hair and villus production.
NIU Chun-e,ZHANG Li-ping,GAO Ya-qin ,DANG Chun-nian, LI Wei-hong ,WEI Yun-xia（ 1. Lanzhou Institute of Animal Science and Veterinary Pharmaceutics, CAAS, Lanzhou 730050, China; 2. Quality Supervising, Inspecting and Testing Center for Animal Fiber, Fur, Leather and Products Lanzhou, Ministry of Agriculture of P. R. China, Lanzhou 730050, China; 3. Animal Science ＆ Technology College, Gansu Agricultural University, Lanzhou 730050, China）
ISSN:1943-9911