早期断奶乳猪料配方及配制技术的研究

Study on the Formala and Processing Technology ofthe Feedstaff for Early Weaned Piglets

选用４２窝４０６头不同品种（长白×大约，长白，杜×长×大）的乳猪分成两组进行了两次小试筛选和１次中试验证，与占领国内乳猪料市场的某中外合资企业乳猪料进行对比试验。中试试验各项饲养性能指标分别为：０～５６日龄日增重试验组３２７．８６ｇ，对照组３１６．２５ｇ，试验组比对照组提高３．６７％，０～５６日龄料肉比分别为０．９４∶１和０．９８∶１，试验组比对照组降低４．０８％，育成率均为９９．５％。上述指标差异均不显著（Ｐ＞０．０５），但试验组较对照组降低成本１０．４７％，提高经济效益１３．８６％。

In order to find a favourable feed formula and processing technology for the feedstuff for early weaned piglets,two small-scale experiments and one middle-scale experiment were carried out on 406 piglets from 42 litters in different breeds (Landrace×Large Yokshire,Landrace,Duroc×Landrace ×Yokshire).Compared with the feed produced by on joint venture feed company (Control group),the new designed feed formula (experimental group)obtained the following results in a middle-scale experiment:experimental group Vs control group,daily gain during 0～56d: 327.86g Vs 316.25g;feed conversion efficience during 0～56d: 0.94∶1 Vs 0.98∶1. The experimental group gained higher daily gain of 3.67% and higher feed conversion effcience of 4.08% than the control group.The piglet livability of the two groups was the same as 99.5%. Although the difference of the two traits between the experimental and control groups were not statistically significant,the experimental group reduced the cost of feed by 10.47%,and increased the profit by 13.86%.