作　　者： ; ; ; ;

机构地区： 中国海洋大学水产学院海水养殖教育部重点实验室

出　　处： 《中国海洋大学学报（自然科学版）》 2004年第6期942-948,共7页

摘　　要： 采用鱼肉、虾肉、蛤肉、沙蚕、配合饲料和以上 5种饵料的等干重混合物投喂体重为 ( 1.5 3 0± 0 .0 47) g的中国对虾 3 0d ,并对体重分别为 ( 2 .988± 0 .2 0 0 )g ,( 7.960± 0 .45 0 ) g ,( 14 .177± 0 .868) g ,( 19.0 12± 1.413 )g 4个规格的中国对虾采用配合饲料分别按每天体重 0 % ,0 .5 % ,1.0 % ,1.5 %和过量 5个摄食水平进行投喂 2 8d ,对中国对虾的蜕皮进行了研究。实验结果证明 ,饵料种类对中国对虾的蜕皮次数 (MT)、蜕皮量、蜕皮能占摄食能的比例及每次蜕皮的体重增长都有显著影响。实验期间中国对虾的蜕皮次数范围为 2 .3 1～ 3 .98次 ,蜕皮能占摄食能的比例为 1.16%～ 2 .72 % ,每次蜕皮的体重增长为 0 .14 1～ 0 .488g。不同摄食水平对中国对虾的蜕皮能占摄食能的比例及每次蜕皮的体重增长都有显著影响 ,前者随摄食水平的提高而下降 ,后者随摄食水平的提高而增加。摄食水平对 ( 2 .988± 0 .2 0 0 ) g的对虾的蜕皮次数 (MT)和蜕皮的干重、氮含量、能量的影响较大 ,而对其余 3个规格的对虾影响较小。摄食水平对对虾每次蜕皮的干重、氮含量、能量及单位体重每次蜕皮的干重、氮含量、能量的影响仅表现为饥饿或较低摄食水平与其它摄食水平差异显著 ,而更高的摄食水平对它们没有显著影响。 Five diets, i.e., fish muscle (FF, flesh of fish (Sardinella zunasi)), shrimp muscle (SF, flesh of shrimp (Trachypenaeus curvirostris)), clam muscle (CF, foot of clam (Ruditapes varigata)), clam worm (PW, polychaete worm (Neanthes japonica)) and formulated diet (FD, a commercial formulated diet) and the mixture of them (MD), were fed to the same species of shrimp weighed (1.530±0.047)g for 30d and formulated diet at six ration levels i.e., 0%, 0.5%, 1.0%, 1.5% of the body weight, and to excessive, were fed to Chinese shrimp with wet weight (2.988±0.200)g, (7.960±0.450)g, (14.177±0.868)g, and (19.012±1.413)g for 28d to investigate the effects of diet differences and ration levels on the molt of Chinese shrimp. The results show that diet differences significantly affecte the molt frequency (MT), weight of exuviations, percentages of exuviations energy account for ingested energy, and per molt weight increment. Chinese shrimp fed with different diets molts from 2.31 to 3.98 during the experimental period and the exuviations energy accounts for 1.16%～2.72% of ingested energy. The weight increment of per molt of the different diets fed shrimp ranges from 0.141g to 0.488g. Significant effects of different ration levels on the percentages of exuviations energy account for ingested energy and per molt weight increment are observed. The percentages of exuviations energy account for ingested energy decreas with the increasing of ration levels and the per molt weight increment increases with the increasing of ration levels. The effects of ration levels on molt frequency, dry weight of exuviations, nitrogen content of exuviations, and energy content of exuviations are more significant in shrimp with weight of (2.988±0.200)g than those in other three sizes. There is no significant effect in increasing ration levels on the dry weight, nitrogen content, energy content of per exuviations and per unit body weight per molt dry weight, nitrogen content, energy content observed when the ration levels are above the st

关 键 词： 饵料种类 摄食水平 中国对虾 蜕皮

领　　域： [农业科学] [农业科学]