商品猪场确定种猪及精液配种价值的生物经济学方法

Bio-economic Model for Estimating the Reprodnctive Value of Breeding Boar or Semen

商品猪场选购种猪或精液时 ,需要考虑其配种的综合效果 ,这些包括配种后母猪受胎率、窝产活仔数及商品猪的日增重、饲料转化率及瘦肉率等。本文通过建立生物经济学模型模拟商品猪群生产过程 ,利用差额法计算这些指标对出栏猪利润的影响 ,确定其边际效益 ,在此基础上提出“相对配种价值”指数的概念 ,用来估计种猪及精液的综合利用价值 ,为商品猪场选择适当的种猪。

While commercial pig farm purchasing the boar or semen for insemination, the comprehensive results should be considered which include non-return rate, litter size born alive of sows, daily gain, feed conversion efficiency and lean rate of grow-finishing pigs. The present paper set up a bio-economic model to calculate the marginal profits of the above traits, then bring forward a new concept, index of relative mating value, for estimating the total value of breeding boar and semen.