青贮苹果渣作酸化物饲喂断奶仔猪试验

Feeding Effects of Apple Pulp Silage as a Acidulation Substant on Weaned Piglets

用2％、4％、6％青贮苹果渣(按风干物计)与1.5％柠檬酸(对照组)饲喂断奶仔猪,以探讨青贮苹果渣有机酸对仔猪的饲喂效果。选用64头35～40日龄仔猪,体重7～8kg,饲喂45d,结果表明:2％、4％、6％与对照组1～20d日增重依次为312g、322g、303g、324g;21～45d为603g、590g、582g、590g,全期平均日增重为473g、470g、458g、471g,饲料增重比为2.26、2.27、2.34、2.27。组间差异均不显著(P>0.05),仔猪严重腹泻率依次为4.8％、4.2％、3.8％、3.9％,差异不显著(P>0.05)。4％组与对照组血清中钙、磷、二氧化碳结合力、谷雨转氨酶、总蛋白含量非常接近。结论:青贮苹果渣饲喂断奶仔猪效果与1.5％的柠檬酸饲喂效果无差异。仔猪日粮中青贮苹果渣的适宜用量为4%左右。

In order to explore the feeding effects of organic acid in apple pulp silage on weanling pig, 64 weaned piglets,35~40 day-old. 7~8 kg weight,were divided into 4 groups and were fed on 2%,4%, 6% apple pulp silage (air dried condition) and 1.5% lemon acid (control group). The results were that the daily weight gains of 2%,4%,6% trial groups and control group in 1-20 days were 312 g,322 g, 303 g,324 g respectively;in 21~45 days were 603 g?90 g,582 g,590 g;the average weight gains in 1 ~45 days were 473 g,470 g,458 g,471 g and the ratios of feed to body weight gain were 2. 26,2. 27, 2. 34,2. 27. There were no significant differences among groups(P>0. 05). The rate of serious diarrhea in weaned piglets were 4. 8%,4. 2%,3. 8%,3. 9%,in their given order,differences were not significant(P>0. 05). The content of Ca,Toal P,CO2 cp,ALT,Toal CP in sera between 4% trail group and control group was approximate. It was slowed that the effects of weaned piglets fed apple pulps silage were similar to lemon acid. The optimum amount required in diet of weaned piglets was near to 4%.