生态学杂志2011，Vol.30Issue(10)：2262-2268,7.
饥饿胁迫对曼氏无针乌贼幼体的影响
Impacts of starvation on biochemical indices and behaviors of Sepiella maindroni juveniles
摘要
Abstract
Taking the newly hatched bepiella mamdroni juveniles at test materials, this paper studied the impacts of starvation on the survival rate, behaviors, digestive enzyme activities, and fatty acid composition, and the effects of re-feeding after starvation on the survival rate and growth of the juveniles. With the increasing duration of starvation, the survival rate, body shape, and behaviors deteriorated significantly, and died completely on the 7th day of starvation. The pepsin activity decreased to the minimum (0. 23 ±0. 04 U·mg-1·prot-1) whereas the trypsin activity increased to the maximum (737.30±26. 26 U·mg-1· Prot-1) on the 5th day of starvation, and the amylase activity and lipase activity decreased to the minimum (13.93±2. 00 U · G-1·prot-1 and 17.46±0. 79U·g-1· Prot-1) on the 5th day and 2nd day, respectively. Under starvation, the consumed fatty acids in the juveniles themselves were in sequence saturated fatty acid, monounsaturated fatty acid, low chain unsaturated fatty acids in poly unsaturated fatty acid, and highly unsaturated fatty acid. The point of no-return of the juveniles was the 5th day of starvation. These results could be helpful to the rational formulation of the feeding strategies for S. Maindroni cultivation.关键词
曼氏无针乌贼/饥饿胁迫/消化酶/脂肪酸/不可逆点Key words
Sepiella maindroni/starvation stress/digestive enzyme/fatty acid/point of no return分类
农业科技引用本文复制引用
范帆,尹飞,彭士明,王建钢,孙鹏,施兆鸿..饥饿胁迫对曼氏无针乌贼幼体的影响[J].生态学杂志,2011,30(10):2262-2268,7.基金项目
上海市国际科技合作基金项目(10410703600)和中央级公益性科研院所基本科研业务费(东2009 M08)资助. （10410703600）
