放牧条件下的高原型藏羊生长发育及绒毛品质变化研究  

Study on growth development and cashmere wool quality change of Tibetan- sheep under grazing conditions

作　　者：马世科[1] 乔海生[1] 

机构地区：[1]青海省畜牧兽医科学院,西宁810016

出　　处：《青海畜牧兽医杂志》2016年第5期10-12,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

摘　　要：通过100只(15头公,85头母)藏羊从出生到4.5岁体重、体尺及产毛量数据的分析,结果表明体尺和体重母羊3.5岁时达到最大,3.5岁后进入稳定状态,而公羊体高、体长2.5岁达到最大值,3.5岁后体重和胸围仍在保持缓慢增长,体重与胸围变化保持高度一致。羊毛长度2.5岁达到最高值,产毛量3.5岁达到峰值,年龄对净毛率、色度、卷曲弹性基本无影响,细度母羊变化不明显,但公羊随年龄变粗趋势明显。母羊1.5岁进入繁殖期后生长发育受到明显抑制。The body weight, body size and producing wool volume of 100 Tibetan - sheep （15 male, 85 female） from birth to 4. 5 years old were measured. The results showed that ewes ’ body size and body weight reach maximum at 3. 5 years old and then would be keep stable. Rams’ body height and body length reach maximum at 2. 5 years old, but the body weight and chest circumference would keep growing after 3. 5 years old. The change of body weight and chest circumference kept very consistent between them. Cashmere wool length reach maximum at 2. 5 years old, and wool production reach maximum at 3. 5 years old. The age has no impact on net wool rate, color scale, crimp e-lasticity. Fineness for ewes had no obvious change, but for ram had a obvious trend of becoming thick with the age in-creasing. Ewes’ growth development was significantly inhibited after 1. 5 years in entering the breeding period.

关 键 词：高原型藏羊 生长发育 绒毛品质 变化 

分 类 号：S826.83[农业科学—畜牧学]