四川农村养猪日粮及平衡饲养技术初探

SICHUAN RURAL SWINE RATION MODELS AND THEIR SUPPLEMENTATION

在四川养猪主产地的不同地理生态区选点,深入农户广泛开展农村养猪常用饲料及日粮调研,采集饲料样品92个,分析测定铁、铜、猛、锌、钴、碘和硒的含量,将四川农村养猪日粮总结划分为:(1)玉米、青料日粮;(2)甘薯、青料日粮;(3)玉米、小麦、青料日粮;(4)玉米、大麦、青料日粮。并对各日粮的营养含量作了概算和评定。在此基础上,提出适合四川农村养猪日粮的添加剂预混料和浓缩料配制建议以及浓缩料主要营养指标推荐值。依此,开展了4种日粮的6批44组347头肉猪的饲养试验。从中优选出一批饲料配方,已在11个地市的40余家厂试产,省内外广大农村养猪中应用,有效地促进了饲料工业和农村养猪生产的发展。研制的甘薯青料日粮及平衡饲养技术,已列专题在省内大面积推广应用。经济效益和社会效益十分显著。

Surveys on swine rations used commonly in rural Sichuan were conducted at selected places representing main pig production areas. 92 samples of feeds were collected and the contents of trace minerals: Fe、Cu、Mn、Zn、Co、I、Se were analyzed. The rations could be devided into 4 types: 1. Corn, green fodders; 2. Sweet potato, green fodders; 3. Corn and wheat, green fodders; 4. Corn and barley, green fodders; Based on calculations of nutrient contents in these rations, some suggestions for feed nutritent parameters formulating additive premix concentrated were suggested, 6 feeding experiments with 347 pigs assigned to 44 groups were conducted, from which, compound feed formula were selected and have been adopted by more than 40 feed mills located in 11 cities and prefectures. The approved products were sold in or out of Sichuan province for the effective development of pig husbandry. The sweet potato—green fodders ration and its balancing technology has been specifically propaganized in Sichuan province and has created marked social and economical benefits.