不同细度类型细羊毛纤维直径变异研究

Study on Variations of Fiber Diameter in Different Types of Fine Wool

共采集150个中国美利奴羊（新疆型）3个细度类型（18μm以下、18～20μm及20μm以上）羊毛样本,分析了沿毛丛长度方向及毛丛内纤维间直径变异。结果表明,不同细度类型羊毛沿毛丛方向纤维直径有相似的变异规律且与饲草料资源的季节性变化吻合,但细度18μm以下羊毛纤维直径变异最小（P〈0.01）;相反地,毛丛内纤维间直径变异随羊毛细度的降低而增大（P〈0.01）。

150 wool samples including 3 types of fineness（≤18 μm,18～20 μm and ≥20 μm） were taken, and the variations of fiber diameter along and within staple were studied. The results demonstrate that the variation of fiber diameter along staple is similar in different types of fineness and agrees with the seasonal change of feedstuff, and the wool with fineness being less than 18 μm has the least variations of fiber diameter（ P〈0. 01） ; Contrarily, the variation of diameter between fibers within staple is increased in company with the reducing of fineness（P〈0.01）.