Studies On Feeding Behavior And Digestive Enzyme Activities Of Litopenaeus Vannamei And Fenneropenaeus Chinensis In Different Culture Conditions

This article summarizes the research progress of penaeid shrimps'feeding behavior and digestive enzyme, investigates the influence of different culture conditions on the feeding behavior and digestive enzyme activities of Litopenaeus vannamei and Fenneropenaeus chinensis. This article includes: 1 The effect of starvation on feeding behavior and digestive enzyme activities of Litopenaeus vannamei postlarvae. 2 The effect of starvation on feeding behavior and digestive enzyme activities of Fenneropenaeus chinensis postlarvae. 3 The ability of starvation resistance in Fenneropenaeus chinensis and its physiological mechanism. 4 The studies on effects of stocking density, food density and culture mode on feeding behavior and digestive enzyme activities of Fenneropenaeus chinensis and Litopenaeus vannamei. 5 The effect of substrate on feeding behavior and digestive enzyme activities of Fenneropenaeus chinensis. 6 Effect of salinity on survival, growth, and digestive enzyme activity of juvenile whiteleg shrimp, Litopenaeus vannamei.1 Semi-intensive and intensive culture conditions were built in the lab. The influence of starvation (0 (control), 1, 2, 3, 4, 5 and 6 days) on the feeding behavior and digestive enzyme activities of Litopenaeus vannamei postlarvae reared in different culture conditions was investigated. The results showed that feeding behavior and feeding rate increased in the first, then decreased with starvation time increased in both culture conditions. It is suggested that L. vannamei raise the feeding behavior, feeding rate and digestive enzyme activities to reject the starvation stress. However, the resistance to starvation stress of L. vannamei decreased with the starvation time increase, which make digestive enzyme activities decreased. In contrast, L. vannamei reared in intensive culture condition showed lower resistance ability than that reared in...