滩羊生态与选育方法的研究 Ⅶ.甘肃不同类型产区滩羊羊毛物理性能分析—羊毛纤维类型的测定

本文分析测定了我省不同类型产区滩羊二毛期、成年期羊毛纤维类型含量比例;二毛期毛股弯曲数、花穗类型,计180个样品。结果表明:二毛期毛股弯曲数以景泰产区最多,规则花穗类型亦以景泰产区最高,达100％。皋兰、榆中次之。皋兰与榆中两者比较,皋兰优于榆中。成年滩羊被毛纤维类型含量比例以景泰产区最优(有髓毛含量为6.36％,两型毛含量为13.33％,无髓毛含量为77.20％),接近宁夏滩羊指标,皋兰、榆中次之。

Studies on Tan--Sheep Ecology and Selection Method: Ⅶ. The Report on Tan-Sheep Wool Characters from Various Areas in Gansu--Measure--ment for Fieece Fiber Type

One hundred & eighty Tan-Sheep fleece samples from various areas in Gansu wwre collected for measuring their proporting of sorted fibers during two periods (one month lamb wool and maturing), and for measuring the number of curls and regular patterns during the one month lamb wool period. Results indicated that Jintai area is the best in terms of number of curls during the one month lamb wool period and is the highest, up to 100%, in regular patterns. Between Gaolan and Yuzhong, the former is better. From the point of proportion of fleece fiber type in adult sheep, Jintai is much better than Gaolan and Yuzhong in medullated, fibers, 6.33%; heterotypical fibers, 13.33%; and unmedullated fibers, 77.20%, which are much close to the figues from Ninxia Tan-Sheep.