不同梯度发酵豆粕对仔猪生长性能和经济效益的影响

Effect of different levels of fermented soybean meal on the growth performance and economic benefit in piglets

试验旨在探讨不同梯度发酵豆粕在仔猪教槽料中使用对仔猪生长性能的影响。选择（7±1）日龄长×大二元仔猪96头,按窝别、性别、体重相近的原则分为对照组、试验A组、试验B组、试验C组4个组,每组3个重复,每个重复8头仔猪,分别饲喂普通豆粕、6%、12%、18%发酵豆粕配制而成的配合饲料。试验结果表明：7~28日龄,各组仔猪的平均体重、平均日增重与对照组相比差异不显著;28~42日龄,与对照组相比,发酵豆粕添加量在12%范围内,随着添加量的增加,断奶仔猪平均体重、平均日增重、平均日采食量均呈上升趋势,料肉比、腹泻率呈下降趋势;当添加量达到12%时,断奶仔猪平均体重、平均日增重、平均日采食量均明显提高（P〈0.05）,料肉比明显降低（P〈0.05）;当添加量继续增加达到18%时,断奶仔猪平均体重、平均日增重、平均日采食量呈下降趋势,料肉比、腹泻率呈上升趋势。与对照组相比,饲喂6%、12%发酵豆粕组仔猪每头可分别多获益2.01元和11.92元,而饲喂18%发酵豆粕组仔猪每头少收益1.04元。

This experiment was eonducted to study the effects on growth performance and eco- nomic benefit of weaned piglets by adding different levels of fermented soybean meal （FSBM） in piglet diets. Ninely-six （7＋1） day-ohl （Landraee Yorkshire） piglets with similar litter, sex and weight were randomly divided into 4 dietary treatments with 3 replications of 8 pigs in each treatment. During 5-week study period, 6%, 12% and 18% fermenled soybean meal were added into basal diets of group A, B and C respectively, while control group fed the soybean-meal- added diet. Resuhs showed as follows： There were no obvious differences of average weight （AW） and average daily gain （ADG） between 4 groups in 28 days. During 28-42 day-oht, when the addition was less than 12%, with the inelvasing of FSBM addition, the AW, AD（, and aver- age daily feed intake （ADFI） had a rising tendency, on the contrary were the feed gain ratio （FGR） and diarrhea ratio. When the addition was 12%, the AW, ADG and ADFI improved sig- nilieantly （P〈0.05）, while the FGR decreased significantly （P〈0.05）. When the addition was increased to 18%, the AW, ADC and ADFI had a downward trend, on the contrary were the FGtl and diarrhea ratio. Compared wilh the control group, the weaned piglet fed with 6% and 12% FSBM could make 2.01 yuan more and 11.92 yuan respectively, while the one with 18% would lose 1.04 yuan.