大蒜秸秆饲喂对肉羊增重及羊肉品质的影响  

The effect of garlic straw feeding on weight gain and meat quality of meat sheep

作　　者：张熙艳 ZHANG Xiyan(Jinan Animal Disease Prevention and Control Center,jinan,Shandong Province 250099,China)

机构地区：[1]济南市动物疫病预防与控制中心,山东济南250099

出　　处：《中国饲料》2024年第4期129-132,共4页China Feed

摘　　要：文章旨在探究日粮添加大蒜秸秆对肉羊增重及羊肉品质的影响。试验将120只健康、生长状况良好的平均体重为(20.89±0.35)kg的寒杂公羔羊随机分为4组,每组5个重复,每个重复6只。分别用0、3%、6%和12%的大蒜秸秆替代基础日粮中的玉米秸秆,试验为期100 d,其中预饲期7 d,正试期93 d。试验结果表明,日粮添加6%的大蒜秸秆可显著提高肉羊平均日增重和终末体重(P<0.05);日粮添加6%的大蒜秸秆可显著降低肉羊料重比(P<0.05);日粮添加大蒜秸秆对肉羊平均日采食量无显著影响(P>0.05)。日粮添加6%的大蒜秸秆可显著提高肉羊背最长肌的pH24 h和a*值(P<0.05);日粮添加6%和12%的大蒜秸秆可显著降低肉羊背最长肌的L*值(P<0.05);日粮中添加6%的大蒜秸秆可显著降低肉羊背最长肌的滴水损失;日粮添加大蒜秸秆对肉羊背最长肌pH_(45 min)和b*值无显著影响(P>0.05)。总之,在本试验条件下,肉羊日粮大蒜秸秆最适添加量为6%。The aim of this study is to investigate the effect of adding garlic straw to the diet on weight gain and meat quality of meat sheep.120 healthy and growing Han miscellaneous male lambs with an average weight of 20.89±0.35 kg were randomly divided into 4 groups,with 5 replicates in each group and 6 in each replicate.Using 0,3%,6%,and 12%garlic straw instead of corn straw in the basic diet as the experimental diet,the experiment lasted for a total of 100 days,with a pre trial of 7 days and a trial of 93 days.The experimental results showed that adding 6%garlic straw to the diet significantly increased the average daily gain and final body weight of meat sheep(P<0.05);Adding 6%garlic straw to the diet significantly reduced the feed to weight ratio of meat sheep(P<0.05);Adding garlic straw to the diet had no significant effect on the average daily feed intake of meat sheep(P>0.05).Adding 6%garlic straw to the diet significantly increased the 24-hour pH and a*value of the longissimus dorsi muscle of meat sheep(P<0.05);Adding 6%and 12%garlic straw to the diet significantly reduced the L*value of the longissimus dorsi muscle in meat sheep(P<0.05);Adding 6%garlic straw to the diet significantly reduced the dripping loss of the longissimus dorsi muscle in meat sheep;The addition of garlic straw to the diet had no significant effect on the pH and b*values of the longissimus dorsi muscle of meat sheep at 45 minutes(P>0.05).In summary,under the conditions of this experiment,the optimal amount of garlic straw added to the diet of meat sheep is 6%.

关 键 词：肉羊 大蒜秸秆 生长性能 肉品质 

分 类 号：S826[农业科学—畜牧学]