用生物经济模型方法探讨我国优质猪培育

为对我国优质猪培育的若干问题进行量化分析和探讨,利用农场模型的方法,构建含或不含地方猪血缘的商品猪场的生物经济模型,并考虑模型的生物学效率,对模拟的2个猪场进行保本分析、成本结构分析和性状边际效益分析。结果显示,模拟的各600头母猪的2个猪场:瘦肉型良种商品猪场每年利润为56.01万元,净能利用效率为27.69 MJ/kg,全群料重比为3.106;而含地方猪血缘的优质商品猪场,相同生猪价格、土杂猪价格销售和优质优价3种条件下的年利润分别为-21.92万元、-91.39万元和35.98万元,保本生猪价格为8.256元/kg。上述优质商品猪场净能利用效率只有31.58 MJ/kg,全群料重比仅为3.534。研究表明,猪肉优质优价和降低饲料成本是优质猪培育和利用的关键。

Bio-economic model study of the breeding of Chinese quality pig

In order to discuss the Quality Pig Breeding by quantity analysis approach,two bio-economic farm models for biological efficiency with or without Chinese Indigenous Swine were developed to conduct break-even,cost-structure and marginal profit analyses.The models were applied to a commercial pig farm with 600 sows including Chinese Indigenous Swine.Annual profits under three price assumptions(the same price as Lean Meat hog,lower price of local hybrid hog or higher price of Quality Pig) were respectively,-219.2,-913.9 and 93.87 thousand yuan.The break-even price was 8.256?yuan/kg and efficiency in net energy utilization and feed conversion was 31.58?MJ/kg and 3.534 respectively.The annual profit,efficiency in net energy utilization and feed conversion efficiency of the Lean Meat commercial pig farm of 600 sows was 560.1 thousand yuan,27.69?MJ/kg and 3.106,respectively.The results show that high price with high quality and reducing feed cost are the keys to Quality Pig Breeding.