南疆绒山羊对新疆山羊的杂交改良效果分析

新疆南疆绒山羊是1998年培育成功的新疆地方绒山羊新品种,南疆绒山羊综合了辽宁绒山羊高产绒量和本地山羊的绒细度好、适应性强的优良特性,适合新疆天山以南的荒漠化地区。试验通过分析南疆绒山羊和本地山羊的杂交后代的主要生产性能表现,对杂交后代的周岁抓绒后体重、周岁羊绒直径以及周岁抓绒量的数据资料进行分析,并用生物统计方法进行差异显著性检验,以观察其杂交效果。结果显示:利用南疆绒山羊对本地山羊进行杂交改良,杂交后代周岁抓绒后体重较母本提高2.68 kg,增长了15.41%,差异极显著(P<0.01);杂交后代周岁羊绒平均直径小于父本0.4μm而大于母本0.1μm,杂交后代能够保持母本性状细度上优势;杂交后代比母本周岁平均抓绒量提高了58.30 g,增加了41.9%,差异显著(P<0.05)。由此可见,南疆绒山羊杂交改良本地山羊,对于杂种后代的产绒后体重和产绒量上有显著的效果,且稳定地遗传了本地山羊的绒纤维直径较细的的优良特性,对当地自然生态环境的较好的适应性,因此在阿克苏地区有较高的推广价值。

Analysis of Improvement Effect of Nanjiang Cashmere Goat on Local Goat

This experiment is designed to analyze sheared weight,cashmere diameter,and cashmere production of yearling crossbred goat of Nanjiang Cashmere Goat and local goat yearling goat,then analyze the data by using biological statistics methodo.The results show that the sheared wegith of yearling crossbred generation was 2.68 kg more than that of female parent with significant difference(P<0.01).The average cashmere diameter was 0.4 μm thinner than that of male parent,but was 0.1 μm thicker than that of female parent.Average cashmere yield of yearling crossbred generation was 58.30 g more than that of fermale parent with significant difference(P<0.05).