【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。更多还原

【Abstract】 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 elasticity.Fineness for ewes had no obvious change,but for ram had a obvious trend of becoming thick with the age increasing.Ewes’ growth development was significantly inhibited after 1.5 years in entering the breeding period.更多还原