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《Journal of Anhui Agricultural Sciences》 2006-16
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Effect of Amino Acid Balance on the Growth and Apparent Digestibility of Allogynogenetic Crucian Carp

WANG Ai-min et al (College of Chemistry and Biology Engineering,Yancheng Institute of Tchnology,Yancheng, Jiangsu 224003)  
Four hundred and fifty Allogynogenetic crucian carp fingerlings(average weight 10.0 g)was divided into five groups randomly,namely Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴgroup, everyone of which had three duplicates(the size of aquarium:100 cm80 cm60 cm). The Ⅰ group was contrast,fed with the amino acids unbalance basic diet of the percentage of 34 % CP. The others were tested groups,the Cp level of basic diet in group Ⅱ was one percent higher than thatof the contrast,with amino acids still unbalance(absence of Lysine,Methionine); the composition of feed of Ⅲ,Ⅳ,Ⅴ group,s basic diet were respectively adjusted based on Ⅰ group,s basic diet,by adding free amino acids(Lysine,Methionine)to make amino acid of the Ⅲ,Ⅳ group balance and reducing CP level,but the amino acid of the Ⅴ group was still unbalance(excess of Lysine,Methionine),Raised for 60 days. The results showed:compared with the contrast,there was no significant(P0.05)in the weight gain ratio and apparent digestibility of nutrition of the Ⅱ.Ⅴ groups;The weight gain ratio of the Ⅲ,Ⅳ groups were 20,11.4 percent higher(P0.05)than that of the contrast,amino acid balance in feed has significant effect on the performance property,There was the trend for Allogynogenetic crucian carp fingerlings to improve the digestibility of the nutrition ; making amino acids balance can appropriately lower CP level and fish meal percent so as to save protein resource and diminish feed cost.
【Fund】: 盐城工学院校级研究生基金课题.
【CateGory Index】: S963
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