新疆褐牛放牧条件下体尺指标的研究

目的]通过伊犁地区放牧新疆褐牛的体尺指标研究,揭示我区在新疆褐牛选育工作中存在的问题,为今后新疆褐牛的提纯复壮及新品系的培育提供科学依据.方法]选择伊犁地区昭苏、特克斯、新源县、乌孙褐牛繁育中心在放牧条件下的新疆褐牛1 000头为试验对象,进行体型外貌的线性评定及体尺指标测定.结果]乌孙褐牛繁育中心的体尺指标均高于昭苏、特克斯、新源地区放牧新疆褐牛,说明乌孙褐牛繁育中心的新疆褐牛与昭苏、特克斯、新源地区相比肉用生产性能优势显著;通过对昭苏、特克斯、新源三个地区新疆褐牛的体尺指标进行比较发现昭苏地区新疆褐牛管围最小(P<0.05),腰角宽最大;特克斯地区新疆褐牛的尻长,髋宽,坐骨宽最大(P<0.05).结论]昭苏地区新疆褐牛肉用性能较好,特克斯地区新疆褐牛乳用性能优势显著.

Study on Body Size of Xinjiang Brown Cattle under the Herd Condition

【Objective】The study on body size of Xinjiang Brown Cattle under the Herd Condition in Ili,revealed the problem of breeding Xinjiang Brown Cattle.It could provided scientific basis for purification and rejurenation and new species breeding of Xinjiang Brown Cattle.【Method】The total of 1 000 Xinjiang brown cattle which came from Zhaosu county,Tekesi county,Xinyuan county,the Wusun breeding station of Xinjiang brown cattle were selected for determining body size under the herd condition.【Result】The body size of Xinjiang brown cattle in the Wusun breeding station was higher than that of Xinjiang brown cattle in Zhaosu county,Tekesi county,Xinyuan county,which indicates that the meat production performance of Wusun reproduce and breeding station of Xinjiang brown cattle were of significant superiority;meanwhile Xinjiang brown cattle in Zhaosu county had the least circumference of cannon bone(P<0.05),hip width were the most;Xinjiang brown cattle in Tekesi county had the most coax and hucklebone (P<0.05).【Conclusion】The Xinjiang brown cattle in Zhaosu county had the best production performance ,the milk production performance of Xinjiang brown cattle in Tekesi county were the best.