【作者】 吴旭干； 成永旭； 沈竑； 南天佐； 王金庆；

【Author】 WU Xu-gan,CHENG Yong-xu, SHENG Hong,NAN Tian-Zuo ,WANG Jin-qing Key Laboratory of Aquatic Genetic Resources and Aquaculture Ecosystem Certificated by the Ministry of Agriculture, Shanghai Fisheries University,Shanghai 200090,China Shanghai YingSheng Industry Ltd. Co.,Shanghai 202150, China

【机构】 上海水产大学农业部水产种质资源与养殖生态重点开放实验室； 上海瀛生实业有限公司；

【摘要】 通过在配合饲料中添加不同浓度的猪油、鱼油和磷脂,制成5种配合饲料,并用新鲜缢蛏作为配合饲料的对照.经64d饲养实验,以雌蟹的增重率、成活率、卵巢指数、肝胰脏指数、出肉率及其组织中脂肪和水分含量为指标,研究不同磷脂和高度不饱和脂肪酸浓度对中华绒螯蟹育肥和卵巢发育的影响.饲料中添加不同浓度的磷脂和高度不饱和脂肪酸对雌蟹的增重和成活率影响不显著(P>0. 05);饲料中不同浓度的磷脂和高度不饱和脂肪酸对雌蟹的卵巢指数(GSI)有显著差异(P<0.05),但对肝胰脏指数(HSI),出肉率和可食部分之和无显著影响(P> 0.05);不同饲料对雌蟹卵巢和肌肉中水分和脂肪含量影响不大,但对肝胰脏中水分和脂肪含量影响显著(P<0.05),对照组肝胰脏中的总脂/干重(TL/DW)显著低于各饲料组(P<0.05).结果表明:饲料中添加高度不饱和脂肪酸对中华绒螯蟹雌蟹的育肥和卵巢发育作用显著,而添加高浓度磷脂的作用不明显.更多还原

【Abstract】 Chinese mitten-handed crab(Eriocheir sinensis) were fed by six diets for 64 days to study the effect of different diets on the weight gain、survival、gonadosomatic index(GSI)、hepatosomatic index(HSI)、muscle content and lipid deposit of these tissue. Five diets are isolipidtic and isonitrogenous, but with different amounts of pork lard,fish oil and soy lecithin;diet 1 supplementing 10% pork lard;diet 2 supplementing 10% fish oil;diet 3 supplementing 8% fish oil +2% soy leithin;diet 4 supplementing 5% fish oil +5% soy leithin; diet 5 supplementing 2% fish oil +8% soy leithin. Constricted tagelus (Sinonovacula constricta) were used as control diet (diet 6). The results showed that there were no significant difference on the weight gain and survival of female crab fed different diets. Different experimental diets made a significant difference on the gonadosomatic index( GSI) , while they could take little effects on the hepatosomatic index (HSI) and muscle content. Moisture and lipid deposit in hepatopancreas were affected by the different diets,the lipid content in hepatopancrea of diet 6(control) were significantly lower than those of the other diets. According to the results, it might come to conclusions that HUFA is very important during the ovarian development of Chinese mitten-handed crab,while supplement soy lecithin in pratical diet isnt necessary. The phospholipid requirements of ovarian developing crab may be satisfied in the commericial feeds through the inclusion of ingredients containing some phospholipids endogenously.更多还原