A deterministic modle was used to calculate the production efficiency (RMb/sow) of 64 possible mating systems involv Yorkshire, Landrace,Duroc and Hamshire.

 
  • 应用确定性模型模拟了包含大白猪、长白猪、杜洛克及汉普夏共4个品系64个繁育体系的生产效率(每头母猪的利润)。
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