陶赛特、萨福克肉用羊品种对小尾寒羊和细毛羊羊毛品质的影响

Effect of Mutton Goat Poll Dorset and Suffolk to Wool Quality of Small Tail Han Sheep and Fine Wool Breed

本文通过对肉用羊品种陶赛特和萨福克改良小尾寒羊和细毛羊后的不同杂交组合的羊毛品质分析,其结果为:陶赛特公羊与小尾寒羊、细毛羊杂交后代的羊毛细度均为58's。萨福克与小尾寒羊的杂交后代羊毛细度为50's。陶寒的羊毛长度高于陶细的羊毛长度1.25￣2.31cm,差异高度显著。陶寒、萨寒的羊毛伸度差异不大。成年羊陶细比陶寒羊毛油脂高5.13%,净毛率低5.35%。肉羊品种杂交改良小尾寒羊时,杂种后代的羊毛密度增加,陶细后代的羊毛密度高于其它组合1634￣1678根/cm2。结论:不同父本品种对同一母本品种改良后代的羊毛品质影响不大,同一父本不同母本杂交时,母本对羊毛品质的影响较大。

In present paper wool quality analysis of cross combinations of Poll Dorset and Suffolk with Small Tail Han Sheep and Merino was conducted. The results are the following：The average fineness of cross combination of Poll Dorset stud goat with Small Tail Han Sheep and Merino was 58＇s, and 50＇s for offspring of cross of Suffolk with Small Tail Han Sheep. Wool length was 1.25cm - 2.31cm longer of Poll Dorset- Small Tail Han Sheep cross than that of Poll Dorset- Merino with significant difference, but no significant differences of wool lengths for crosses of Poll Dorset- Small Tail Han Sheep and Suffolk- Small Tail Han Sheep. Wool sweat of adult Poll Dorset- Merino was 5.13% higher than that of Poll Dorset- Small Tail Han Sheep. When mutton goat was applied to improve Small Tail Han Sheep, the fineness of the offspring would increase, Namely the wool density of Poll Dorset- Merino offspring was 1634-167$/cm2 more than the other combinations. It is concluded that the effect of the different male parent breed to the same female parent breed show no significant effect to wool quality of the improved combination; While the same male to the various female show relatively significant effect to wool quality of the improved combination.