对母猪不发情的原因调查及防治措施的研究

母猪不发情导致的不孕是困扰养猪生产的一个突出问题。为了深刻认识母猪不发情的原因,在豫北三市进行了专项调查,先天性、饲养性、繁殖技术性、气候与水土性、衰老性和疾病性等原因均可造成母猪不发情。对这些原因进行了分类统计,调查结果表明:饲养因素占54.95%,先天因素占6.5%,气候与水土因素占6.59%,繁殖技术因素占4.3%,疾病因素占27.47%。通过对母猪不发情原因的调查,有针对性地提出了预防和治疗的办法,实践证明,采取综合性的防治措施,可明显改善母猪不发情状况。

Investigation on the Reasons of Non-estrus of Sow and Prevention and Cure Measures

Non-estrus of sows causing sterile is a perplexing problem in raising pig produces. In order to know why sows are non-estrus deeply, special investigations were carried on in three cities in the north of Henan Province. Congenital factors, raising factors, breeding technology, climate, water and soil factors, disease and so on can all cause cows non-estrus. The reasons were classified and the investigation results shows: Raising factors account for 54.95%, congenital factors account for 6.5%, climate and water and soil factors account for 6.59%, breeding technology factors account for 4.3%, disease factors account for 27.47%. The preventing and therapeutic methods were used correctly after the investigations. Integrated preventing and therapeutic methods can make sows non-estrus improve obviously.