Effect of different plant and animal origin (Fishmeal) feeds on digestive enzyme activity and haematology of juvenile Labeo rohita

This study was aimed at determining the impact of sources of ingredients on the intestinal enzyme activity and haematology of juvenile labeo rohita. five isocaloric treatment diets viz.,t1 (guar meal and canola meal),t2 (soybean meal and cottonseed meal),t3 (guar meal and cottonseed meal),t4 (soybean meal and canola meal),t5 (fishmeal and canola meal) control t0 (control which received rice polish only) were prepared and fed to labeo rohita juveniles. at the end of the experiment,amylase and protease concentrations in the whole intestine were found highest in the t3 diet (p≤0.05). leukocyte and erythrocyte counts were higher in t0 low-protein diet (p≤0.05). the concentrations of albumin and protein were found highest in the t4 diet (p≤0.05). it can be concluded that the diet t3 containing guar and cottonseed meals remained effective for the activity of digestive enzymes. however,the non-protein diets are more effective in improving haematological traits of juvenile labeo rohita.