饲料选购指数的制订与应用

降低饲料成本是提高畜牧生产效益的重要措施之一。本文提出了一种选购饲料的新方法，首先，把饲料的各种营养成分统一用人民币表示，然后再集加，得出各种饲料的综合营养价格。把综合营养价格与市场价格之比定义为饲料选购指数（ＳＩＦ）。饲料选购指数的制订为畜牧生产中选购低价高质饲料提供了科学依据。

The Institution and Application of Selection Index of Feedstuff

The reduction of feedstuff cost is an important measure of raising economic benefit ofanimal preduction, A new method for the purchase of feedstuff is put forward. All nutrients of thefeedstuff are expressed as Renmibi before adding them together,and therefore a synthetic nutrient priceis obtained, The ratio of the synthetic nutrient price to market price is defined as selection index forfeedstuff(SIF)which provides a scientific basis for purchasing feedstuff in animal production.