Optimal Design of Model Scheme for Improving Space Utility Rate of Captive Hu Sheep
To improve the space utility rate of the captive Hu sheep pen,the mating is arranged in continuous phases and batches.A model of the demand for sheep pen in each period is established according to the parameters such as length,capacity and turnover rate in different periods including mating,pregnancy,lactation,rest,and fattening.Based on the existing specifications of sheep pen in the farm,the optimal turnover rate of sheep is obtained in the trial calculation,and a specific production plan is made to maximize the annual output of sheep.As for 5 uncertain factors,a calculation formula for re-selecting parameter values is constructed.Dozens of alternatives are obtained by adjusting the length of lactation and empty pregnancy within a reasonable range,and the optimal solution is determined by calculating and comparing the expected loss of each solution in a hierarchical manner.
captive Hu sheepspace utility ratescheme optimizationcalculation modelturnover ratioexpected loss
万方数据
维普
