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《Journal of Fisheries of China》 2007-S1
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Apparent digestibility of crude protein and amino acids of 11 feed ingredients for Eriocheir sinensis

ZHANG Lu1,CHEN Li-qiao1,HONG Mei-ling1,GAO Qi-ping2,GU Shun-zhang1,LI Er-chao1,LENG Yong-zhi2(1.School of Life Science,East China Normal University,Shanghai 200062,China;2.Tongwei Co.,Ltd.Chengdu 610041,China)  
Experiments were conducted to test the apparent digestibility(AD)of crude protein and amino acids in 11 raw feed ingredients(fish meal,blood meal,meat-bone meal,squid organ meal,shrimp shell meal,brewers yeast,soybean meal,cottonseed meal,rapeseed meal,peanut meal and corn gluten meal)for Eriocheir sinensis.The ADs were determined by comparing the concentrations of digestibility marker(Y2O3) in the feed and faeces of the crab[(97.34±7.36) g].The results showed as follows: The apparent digestibility of crude protein was in a range of 40.62%-89.75%,among which the fish meal(86.07%) and blood meal(89.75%) were highest whereas the rapeseed meal(42.41%) and corn gluten meal(40.62%) were lowest compared with others,and those in other feed ingredients were: soybean meal(77.94%)brewers yeast(76.90%)shrimp shell meal(74.02%)meat-bone meal(73.78%) cottonseed meal(71.63%)peanut meal(65.90%)squid organ meal(63.51%).In animal sources,the apparent digestibility of amino acids in fish meal and blood meal for E.sinensis were highest with more than 90% of digestibility for total amino acids,while that in squid organ meal was lowest(63.51%).The digestibility of total amino acids to single cell protein(brewers yeast) was higher than those of plant sources,among which the cottonseed meal(71.63%) was highest and the soybean meal(77.94%) was second.The experimental results would provide reference data for the evaluation of nutritive values of the protein sources and exploiting more artificial formulated feed of amino acid balance for E.sinensis.
【Fund】: 上海市曙光跟踪计划;; 上海市优秀学科带头人计划(05XD14005);; 国家科技支撑计划项目课题(2006BAD03B03);; 通威股份有限公司资助
【CateGory Index】: S966.16
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