Preliminary Study of the Effect of Dietary Beta Glucan on the Gut Morphology of Giant Freshwater Prawn, Macrobrachium Rosenbergii
The experiment was carried out on giant freshwater prawn, Macrobrachium rosenbergii in triplicate for 60 days with a dietary supplementation of beta glucan to evaluate the effect on gut morphology. Juveniles of prawn (with initial weight of 0.34 0.01 g) were fed with beta glucan incorporated diets at levels 0, 1, 2 and 3 g/ kg of feed. After 60 days the gut micrographs revealed that there were higher goblet cells, microvilli length, crypt and absorption area observed in the treatment of 1 g/kg beta glucan incorporated diet, however it was not significant as compared to other treatments. Less developed in control and disturbed structure were observed in levels of 2 and 3 g/kg of beta glucan incorporated diets. The results revealed that the diet incorporated with 1 g/kg of beta glucan showed development of microvillus structure and goblet cells. However higher doses of beta glucan showed negative effects on gut morphology of Macrobrachium rosenbergii juveniles fed for 60 days.