Improvement of Production Performance of Wool by Coat Treatment in Fine-Wool Sheep

摘要

[Objective] To explore the effects of coats on production and quality of wool fibers in fine-wool sheep.[Method] The coats made of polypropylene were put on fine-wool sheep after shearing and taken off next year.The effects of coats on structure,production and quality of wool fibers,wool sweat secretion,percentage of clean wools,impurities and wool textile process in fine-wool sheep were observed.[Result] After the sheep were dressed one year later,the average fiber length was increased by 0.33 cm(P < 0.05);the percentage of clean wools was increased by 12.44%(P < 0.01);the yield of clean wools were increased by 0.44 kg(P < 0.01);the wool grease content was increased by 6.44%(P < 0.01);the length of polluted staple was decreased by 3.10 cm(P < 0.01);and the impurity content was decreased by 21.25%(P < 0.01).[Conclusion] Coats remarkably improve quality of wool fibers and production performance in fine-wool sheep.