规模化种猪育种与生产数字化管理体系建设及案例分析(Ⅱ):核心群建设与维护

Digitize Management System and Case Analysis for Large-scale Pig Breeding and Production(Ⅱ):Construction and Maintenance of Nucleus Herds

种猪核心群的建设与维护是开展育种工作的重要基础。本文以华南区部分核心育种场2008—2013年的实际育种数据为基础,针对核心群建设和维护方面遇到的一些关键问题,从核心群种猪来源、种群结构、性别比例、世代间隔控制、主动与被动淘汰、分级管理、遗传变异监测等多个角度进行分析探讨,旨在为建立规范的种猪育种与生产数字化管理和分析体系提供参考。同时,通过对实践案例的详细阐释,对一些关键控制点提出了操作性强、有重要参考价值的建议和参数,以期为我国种猪企业的持续规范化、标准化开展种猪育种工作提供借鉴。

Construction and maintenance of nucleus herds is an important basis for pig breeding. The breeding improvement progress is highly determined by the number, quality and variation of nucleus herds. In this research, base on the analysis of practical breeding data from several nucleus farms in south China between 2008 to 2013, some crucial problems on construction and maintenance of nucleus herds will be analyzed and discussed, including origin of nucleus herds, population structure, gender ratio, generation interval, active and passive culling, hierarchical management, monitoring genetic variation etc. The purpose of this paper was to establishing digitize management system for large-scale pig breeding and production. Meanwhile, through elucidating a large number of cases analysis, some critical points, suggestions and parameters were supported for pig breeding. It will be favourable to improving long-term continuable pig breeding and standardizing operational procedure for pig breeding farms in China.