International Journal of Fisheries and Aquatic Research

International Journal of Fisheries and Aquatic Research


International Journal of Fisheries and Aquatic Research
International Journal of Fisheries and Aquatic Research
Vol. 4, Issue 4 (2019)

Replacement of fish meal with moringa diets on digestive enzymes activities in carp, labeo rohita (Hamilton, 1822)


T Dyson, R James

Replacement of fish meal with different levels of Moringa oleifera diets (10, 15, 20, 25 and 30%) on digestive enzymes viz., amylase, protease and lipase were studied in carp, Labeo rohita for 80 days. The digestive enzyme, amylase activity was increased with extension of rearing period (0 – 80 days) and inclusion of Moringa diet in the place of fish meal. Amylase activity was gradually enhanced with inclusion of Moringa diet upto 25% and thereafter it declined in the foregut, midgut and hindgut of L. rohita. Duncan multiple range test revealed that, 25% MS diet elicited the maximum amylase activity in the tested digestive regions as compared to other MS diets. A significant (P < 0.01) and positive correlations were obtained between the inclusion of MS diets and amylase activity in L. rohita. The ‘b’ values obtained for amylase activity in foregut of L. rohita related to the chosen MS diets was 1.19, 1.29, 1.46, 1.76 and 1.37. It revealed that, high ‘b’ value in fish fed with 25 MS diet (1.76) as compared to other diets. The similar relationships were also obtained in midgut and hindgut of L. rohita. The results obtained for protease and lipase activities were similar to those of amylase activity. L. rohita fed with 25% MS diet registered the more protease and lipase activities in midgut and hindgut as compared to other diets. The present study also elicited that, the low (10 – 20%) and high level (30%) of Moringa inclusion in the place of fish meal, reduced the digestive enzymes, amylase, protease and lipase in L. rohita. The present investigation concludes that, inclusion of 25% M. oleifera leaf meal in the place of fish meal enhances the digestive enzymes (amylase, protease and lipase) in the chosen digestive tracts (fore, mid and hind guts) of carp L. rohita.
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How to cite this article:
T Dyson, R James. Replacement of fish meal with moringa diets on digestive enzymes activities in carp, labeo rohita (Hamilton, 1822). International Journal of Fisheries and Aquatic Research, Volume 4, Issue 4, 2019, Pages 42-47
International Journal of Fisheries and Aquatic Research