中国水产科学2017，Vol.24Issue(1)：91-99,9.DOI:10.3724/SP.J.1118.2017.16219
伊乐藻对中华绒螯蟹生长和营养品质的影响
Effects of Elodea nuttallii on growth and nutritional quality of Chinese mitten crab, Eriocheir sinensis
摘要
Abstract
Aquatic plants are one of the most important ecological factors in Chinese mitten crab culture.However,the effects of aquatic plants on growth of Chinese mitten crab,Eriocheir sinensis have not been quantitatively evaluated,and their effects on nutritional quality remain vague.In this study,we investigated the influence of an aquatic plant (Elodea nuttallii) on growth and nutritional quality of Chinese mitten crab,and compared growth and amino acid and fatty acid composition of adult Chinese mitten crab reared in concrete ponds with and without E.nuttallii.The results showed significant differences (P＜0.05) in body weight,carapace length,carapace width,and condition factor between Chinese mitten crabs reared with and without E.nuttallii,but no differences (P＞0.05) in the hepatopancreas or gonado somatic indices were observed between crabs in the two rearing environments.Amino acid,essential amino acid,and flavored amino acid contents in the muscle of Chinese mitten crabs reared in ponds with E.nuttallii were significantly higher than those in crabs reared in ponds without E.nuttallii (P＜0.05).The flavored amino acid contents in the hepatopancreas of female crabs reared with E.nuttallii were significantly higher than those in crabs reared without E.nuttallii (P＜0.05),but no differences were detected in males (P＞0.05).Muscle fatty acid composition and content were not different in crabs reared in the ponds with and without plants.However,saturated fatty acid,monounsaturated fatty acid,and polyunsaturated fatty acid contents in the hepatopancreas were significantly higher in crabs reared in the E.nuttallii ponds than in crabs reared in ponds without E.nuttallii (P＜0.05).These results indicate that E.nuttallii enhances growth of Chinese mitten crab and should help improve the nutritional quality of Chinese mitten crab.关键词
中华绒螯蟹/伊乐藻/生长/氨基酸/脂肪酸Key words
Eriocheir sinensis/Elodea nuttallii/growth/amino acid/fatty acid分类
农业科技引用本文复制引用
刘庆华,黄姝,岳武成,陈晓雯,彭智文,王军,王成辉..伊乐藻对中华绒螯蟹生长和营养品质的影响[J].中国水产科学,2017,24(1):91-99,9.基金项目
上海市中华绒螯蟹产业技术体系项目[沪农科(产)字2017第4号] （产）
上海市科委崇明科技专项项目(13391912102) （13391912102）
上海市工程技术中心建设项目(13DZ2251800). （13DZ2251800）
