湖羊圈养空间利用率配置方案研究

Allocation of Captive Hu Sheep for Maximum Utility Rate of Space

根据湖羊养殖场对于标准羊栏的规格要求,在实现连续生产条件下,确定羊栏为112个时,将种公羊与基础母羊以1∶14,1∶28,1∶42,1∶50的不同比例配置,分成1—4批,每批最短相差21天进行配种,并进行比较。结果表明,选择1∶42分三批,每批相差21天进行配种,年化出栏羊只数最多,但此配置方案的羊栏每天使用量并不平衡。为提高羊栏使用率,考虑增加配种批次进行优化。结果表明,9只公羊,408只母羊,配种间隔22天,配种数量为第1批48只,第2—10批每批40只,羊栏使用率达97.27%,年出栏羊约1300只。最后,给出了年化出栏羊只数最大时,此养殖场112个羊栏的具体生产计划。

Based on the specifications for standard sheep pen and continuous production in the Hu Sheep farm,if the number of sheep pen is determined to be 112,breeding rams and basic ewes are divided into 4 batches in different ratios of 1∶14,1∶28,1∶42,and 1∶50,with a minimum difference of 21 days in each batch’s breeding.The comparison is made,which shows that ratio 1∶42 in three batches,with a difference of 21 days in each batch’s breeding,results in the maximum annual output of sheep.But the daily utility of sheep pen is not balanced.In order to improve the utilization of sheep pen,the number of breeding batch is increased.The results show that with 9 rams and 408 ewes,the breeding interval of 22 days and the breeding number being 48 in the first batch,and 40 in the next 9 batches,the utility rate of sheep pen reaches 97.27%.Meanwhile,about 1300 sheep are produced throughout a year.Finally,a specific production plan for 112 sheep pens in the farm is given aiming at the maximum annual output of sheep.