细毛羊改良初生、断奶存活质量研究

A Study on the Improvement of the Quality of Life at Birth and Weaning of Fine Wool Sheep

为进一步研究不同羊品种杂交改良获得杂交后代的生产能力和存活质量,在不改变细毛羊毛用性能的前提下,为提高其产肉性能,以细毛羊为母本、以萨福克羊为父本,开展杂交改良,通过对杂交一代和纯繁后代的繁殖性能、生长特征、毛色特征、羊毛品质等方面进行进一步的对比分析,探讨细毛羊改良出生断奶存活质量。研究结果表明,杂交后代的断奶重与纯细毛羊相比显著提高,初生重和双高率差异性不显著,而纯种细毛羊羔羊的存活率要显著高杂种羊达到显著差异水平。

In order to further study the production capacity and survival quality of hybrid offspring,on the premise of improving the performance and wool sheep,we analyzed the reproductive performance,growth characteristics,hair color characteristics and wool quality to improve the survival quality of birth weaning sheep.The results showed that the weaning weight of hybrid offspring was significantly higher compared with pure fine wool sheep,and the difference of primary weight and double high rate was not significant,while the survival rate of pure fine wool lambs was significantly higher than that of hybrid sheep.