发酵饲料对肉鸡生长性能及经济效益的影响  

Effects of fermented feed on growth performance and economic benefit of broilers

作　　者：余素芳[1] 庞孟瑶 YU Su-fang;PANG Meng-yao

机构地区：[1]重庆科创职业学院,重庆402160

出　　处：《饲料研究》2024年第7期44-48,共5页Feed Research

摘　　要：试验旨在研究发酵饲料对肉鸡生长性能、肉品质及经济效益的影响。试验选择1 600只AA肉鸡分成4组,每组4个重复,每个重复100只肉鸡。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加2.5%、5.0%及10.0%发酵饲料。试验期42 d。结果显示:与对照组相比,22~42日龄,5.0%组和10.0%组42日龄体重、平均日增重及平均日采食量显著升高(P<0.05),料重比显著降低(P<0.05);1~42日龄,5.0%组和10.0%组的平均日增重及平均日采食量显著升高(P<0.05),料重比显著降低(P<0.05),5.0%组和10.0%组肌肉pH24 h值、L*值、b*值及蒸煮损失显著降低(P<0.05),2.5%组、5.0%组和10.0%组肌肉剪切力显著降低(P<0.05),5.0%组和10.0%组肌肉中甘氨酸、肌苷酸含量显著升高(P<0.05)。2.5%组、5.0%组和10.0%组的增重收益分别比对照组提高了2.55%、8.74%、12.26%,养殖利润分别提高了2.69%、11.73%、13.15%。研究表明,肉鸡饲喂适量的发酵饲料可以提高生长性能,改善肉品质,增加养殖利润,饲喂5%~10%的发酵饲料较为适宜。The purpose of this experiment was to study the effects of fermented feed on the growth performance,meat quality,and economic benefits of broilers.A total of 1600 AA broilers were divided into four groups with four replicates in each group and 100 broilers in each replicate.The control group was fed with basal diet,and the experimental group was fed with 2.5%,5.0%,and 10.0%fermented feed,respectively.The trial period was 42 days.The results showed that from 22 to 42 days old,body weight,average daily gain,and average daily feed intake of 5.0%group and 10.0%group at 42 days of age were significantly increased(P<0.05),and the ratio of feed to gain was significantly decreased(P<0.05).From 1 to 42 days old,the average daily gain and average daily feed intake of 5.0%group and 10.0%group increased significantly(P<0.05),and the feed to gain ratio decreased significantly(P<0.05).The pH24 h value,L*value,b*value,and cooking loss of muscle in 5.0%group and 10.0%group decreased significantly(P<0.05).Shear stress in of muscle in 2.5%group,5.0%group and 10.0%group decreased significantly(P<0.05).The contentrations of glycine and inosinic acid in muscle of 5.0%group and 10.0%group increased significantly(P<0.05).Compared with the control group,the weight gain of 2.5%group,5.0%group,and 10.0%group increased by 2.55%,8.74%,and 12.26%,respectively,and the breeding profit increased by 2.69%,11.73%,and 13.15%,respectively.The study indicates that broilers fed proper amount of fermented feed can improve growth performance,meat quality,and breeding profit,and it is more suitable to feed 5%~10%fermented feed.

关 键 词：发酵饲料 AA肉鸡 生长性能 肉品质 经济效益 

分 类 号：S831[农业科学—畜牧学]