Such as Duroc breeding swine production system, when increasing replacement gilt largely, the dynamic change ruler of differet herds were emulated.

• 本研究给出了种猪场生产系统达到稳定状态时杜洛克猪、长白猪、大白猪三个种猪生产系统出售的各类种猪和肥猪数量、淘汰的种猪和后备猪数量,为管理者制定生产计划、产品营销计划和预测销售收入等提供参考。