机构地区:[1]郑州信息工程职业学院,河南郑州450121 [2]河南省豫大动物研究所,河南郑州450002
出 处:《中国饲料》2025年第6期129-132,共4页China Feed
摘 要:文章旨在探究蚯蚓粉对肉鸡生长性能、肉品质及经济效益的影响。试验将720羽1日龄科宝肉仔鸡随机分为4组(对照组、试验Ⅰ、Ⅱ、Ⅲ组),每组6个重复,每个重复30羽,分别饲喂基础日粮+0%、0.5%、1%和2%蚯蚓粉的试验日粮,试验为期42 d。试验结果:1~21 d,试验Ⅱ及Ⅲ组的末重比对照组显著提高3.73%和4.51%(P<0.05),日增重显著提高3.89%和4.74%(P<0.05),料肉比显著下降3.87%和4.23%(P<0.05);22~42 d,试验Ⅲ组日增重显著提高4.43%(P<0.05),料重比显著下降4.84%(P<0.05),1~42 d,试验Ⅲ组末重显著提高4.46%(P<0.05),日增重显著提高4.54%(P<0.05),料重比显著下降4.71%(P<0.05),全期未观察到采食量变化(P>0.05)。胸肌:观察到试验Ⅲ组a^(*)值显著上升(P<0.05),试验Ⅱ和Ⅲ组剪切力显著下降(P<0.05),熟肉率显著上升(P<0.05);腿肌:试验Ⅱ和Ⅲ组L^(*)值和剪切力显著降低(P<0.05),试验Ⅲ组a^(*)值显著上升(P<0.05),试验Ⅱ和Ⅲ组熟肉率显著上升(P<0.05)。添加蚯蚓粉后,试验日粮价格分别上升0.06、0.12和0.32元,总饲料消耗成本分别为14.23、14.50、14.83和15.73元,综合计算,毛利润分别为9.86、9.80、9.87和9.45元,试验Ⅲ组毛利润较其他各组分别降低4.16%、3.55%和4.24%。试验结论:添加2%的蚯蚓粉能显著提高肉鸡生长性能,但毛利润降低,建议肉鸡日粮蚯蚓粉添加量为1%。To explore the effects of earthworm powder on the growth performance,meat quality,and economic benefits of broiler chickens.One day old Kebao broiler chickens,720 feathers of Kebao broiler chickens were randomly divided into four groups(control group,experimental groupsⅠ,Ⅱ,Ⅲ),with 6 replicates in each group and 30 feathers in each replicate.They were fed with experimental feed containing basic feed+0%,0.5%,1%,and 2%earthworm powder,respectively.The experiment lasted for 42 days.The results showed that,from day 1 to 21,the final weight of groupsⅡandⅢincreased by 3.73%and 4.51%(P<0.05)compared to the control group,and the daily weight gain increased by 3.89%and 4.74%(P<0.05),while the feed to gain ratio decreased by 3.87%and 4.23%(P<0.05);From 22 to 42 days,the daily weight gain of groupⅢincreased by 4.43%(P<0.05),and the feed to weight ratio decreased by 4.84%(P<0.05).From 1 to 42 days,the final weight gain of groupⅢincreased by 4.46%(P<0.05),the daily weight gain increased by 4.54%(P<0.05),and the feed to weight ratio decreased by 4.71%(P<0.05).No changes in feed intake were observed throughout the entire period(P>0.05).Chest muscles:A significant increase in a^(*)value was observed in groupⅢ(P<0.05),while shear forces in groupsⅡandⅢdecreased significantly(P<0.05),and cooked meat rate increased significantly(P<0.05);Leg muscles:The L^(*)value and shear force of groupsⅡandⅢwere significantly reduced(P<0.05),while the a^(*)value of groupⅢwas significantly increased(P<0.05),and the cooked meat rate of groupsⅡandⅢwas significantly increased(P<0.05).After adding earthworm powder,the experimental feed prices increased by 0.06,0.12,0.32 yuan,respectively.The total feed consumption costs were 14.23,14.50,14.83,and 15.73 yuan,respectively.The gross profits were calculated to be 9.86,9.80,9.87,9.45 yuan,respectively.The gross profit of groupⅢdecreased by 4.16%,3.55%,4.24%compared to the other groups.Experimental conclusion:Adding 2%earthworm powder can significantly improve the growth perfor
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