Effect of a novel compound as dietary supplement on growth of decapod crustaceans

Abstract

Several conventional methods have been used for many years to accelerate the growth in decapod crustaceans but they are suitable for aquaculture practices due to their harmful effects on the animals. The concern over water quality, environmental hazard, human health and food safety has led us to a search for alternative targets to design growth enhancers which can significantly improve the growth of crustaceans without harmful effects. Among such compounds has been CGE-1, an amine compound which have shown excellent molt inducing property. The lobsters treated with CGE-1 exhibited a higher weight gain and greater increment in the carapace length post-molt as compared to the controls even without inhibiting the synthesis and secretion of molt-inhibiting hormone (MIH). This is a significant finding considering the fact that MIH bind specifically to the membrane receptor of y-organs, hence CGE-1 might interferes with this interaction allowing an incessant production of 2-hydroxyedysone (20E). Here, we summarize our findings on the CGE-1 and its effects with particular focus on inclusive growth and vitellogenesis. Our observations and findings suggest that CGE-1 could be a useful growth enhancer that could be used either alone or as a dietary supplement for the rapid growth of decapod crustanceans.