摘要
本试验将120尾异育银鲫随机分成2组:对照组投喂基础日粮,试验组在基础日粮中添加5%蚯蚓粪。连续投喂60d后,测定蚯蚓粪营养成分、氨基酸含量及鱼体增重率。结果表明,蚯蚓粪中含水分22.6%、粗蛋白质12.44%、粗脂肪0.86%、灰分35.88%、碳水化合物27.74%、总氨基酸6.06%、必需氨基酸为2.48%(占总氨基酸的39.81%),其中可提高适口性的天门冬氨酸、谷氨酸、丙氨酸及甘氨酸等含量也相对较多。生长试验表明:与对照组相比,饲喂5%蚯蚓粪异育银鲫增重率比对照组显著提高29.75%(P<0.05)、饵料系数显著降低23.77%(P<0.05),并降低了死亡率。
A total of 120 Allogynogenetic crucian carp were randomly allotted into 2 groups.The control group was fed with basal diet,the other was the trail groups fed with basal diet supplemented with 5 % vermicompost for 60 days.Nutrient composition and amino acid composition of vermicompost and weight gain rate of Allogynogenetic crucian carp were determined.The results showed that vermicompost contained moisture 22.6 % ,crude protein （CP） 12.44 % ,ether extract （EE） 0.86 %,ash 35.88 %,carbohydrate 27.44 % and the total amino acid 6.06 %,essential amino acids 2.48 %,and the content of essential amino account for 39.81% of the total amnio acid.The content of the food attractantes amino acid in- eluding aspartic acid,glutamic acid,alanine acid and glycine acid were high.Compared with the control,growth gain rate of trail group with basal diets added 5 % vermicompost significantly increased 29.75 %,feed conversion rate signiticandy decreased 23.77 %,and the mortality rate reduced.
出处
《中国饲料》
北大核心
2006年第17期30-31,39,共3页
China Feed
关键词
蚯蚓粪
氨基酸含量
增重率
异育银鲫
vermicompost
content of amino acid
weight gain rate
Allogynogenetic crucian carp
