提高湖羊能繁母羊繁殖率的关键技术

The Key Technology to Improve the Reproduction Rate of Hu Sheep

近年,定远县羊产业发展迅猛,规模化、标准化程度不断提高,但能繁母羊的繁殖率还有待于提高,该文以定远县湖羊为研究对象对母羊的繁殖性能进行调查和研究。该县湖羊能繁母羊的平均年产羔率维持在208.51%,远低于湖羊平均年产羔率。故本研究就母羊繁殖率不高的问题对该县规模化、标准化养殖程度较高的羊场进行近5年跟踪调查,结果显示,造成这种现象的原因主要包括场址选择、圈舍布局不合理,选种选配随意性大,饲养管理不善,疫病防控盲目性大,近亲繁殖普遍等几个方面,针对上述原因,养殖场采取一系列综合治理措施。目前,能繁母羊平均年产羔率达246.31%。

In recent years,the sheep industry in Dingyuan County has developed rapidly,and the degree of scale and standardization has been continuously improved. However,the reproduction rate of ewes that can be bred still needs to be improved.In this paper,the reproduction performance of ewes in this county has been investigated and studied.The average annual lambing rate of the fertile ewes of Hu sheep in the county remained at 208.51%,far lower than the average annual lambing rate of Hu sheep.Therefore,this study has carried out a follow-up survey on the sheep farms with relatively high scale and standardization of sheep breeding in the county for nearly five years on the problem of low ewe breeding rate.The results show that the main reasons for this phenomenon include unreasonable site selection and enclosure layout,large randomness of seed selection and selection,poor breeding management,large blindness in disease prevention and control,and widespread inbreeding. In view of the above reasons,The farm has taken a series of comprehensive control measures.At present,the average annual lambing rate of fertile ewes is 246.31%.