生猪养殖场的经营管理模型

Management Model of Pig Farms

为研究大型养猪场的经营管理,根据存栏数的平稳性特征,建立起小猪、种猪、肉猪流动的微分方程组;在此基础上,给出了稳定状态下的盈亏平衡点、选种比例、母猪存栏数和年利润等一系列计算公式;进一步,根据生猪价格变化的预测曲线,引入策略调节系数,并通过适当改变留种数量、配种时间、存栏规模等参数以提高盈利水平,确定养猪场的最佳经营策略。

To study the operation and management of large-scale pig farms, this paper establishes differentialequations group of a pig, breed pig, pig flow according to the smooth characteristics herds. On this basis, theauthors give the breakeven point in the steady state, the selection ratio, sow herds and annual profit and a se-ries of formulas; further, according to the prediction curve hog prices change, the paper introduces the policygdjustment factor, and by appropriately changing the amount of seed, breeding time, scale and other parame-ters to improve profitability to determine the best management strategy farms.