Open AccessPhysio-immunological responses of Labeo rohita fingerlings to commonly used phytogenic feed additives: A comparative evaluation
Author(s) -
Dilip Kumar Chowdhury,
N.P. Sahu,
Parimal Sardar,
Ashutosh Dharmendra Deo,
Megha Kadam Bedekar,
Krishna Pada Singha,
Manas Kumar Maiti
Publication year - 2020
Publication title -
journal of environmental biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.247
H-Index - 48
eISSN - 2394-0379
pISSN - 0254-8704
DOI - 10.22438/jeb/41/6/mrn-1333
Subject(s) - labeo , biology , food science , antioxidant , pepper , bulb , meal , traditional medicine , botany , fish <actinopterygii> , biochemistry , medicine , fishery
Aim: The present experiment was undertaken to compare digestive, metabolic, antioxidant enzyme activities and immuno-biochemical responses in Labeo rohita fingerlings to some commonly used phytogenic feed additives. Methodology: Eleven experimental diets were prepared by supplementing fennel, coriander, cumin, fenugreek seed, turmeric, black pepper, peeled ginger, bay leaf, peeled onion bulb or peeled garlic clove meal at 1% inclusion level along with a control diet. Four hundred and ninety-five fingerlings (average weight 6.45±0.01 g) were distributed randomly in eleven experimental groups in triplicates with a stocking density of 15 fish per tank (400 l of water).Results: Turmeric, garlic or ginger meals appeared to be more effective than onion, fenugreek, cumin, coriander, fennel, black pepper and bay leaf meals for enhancing digestive, metabolic, antioxidant enzyme activities and innate immune functions. The physio-metabolic effects of phytogenic feed additives tested in Labeo rohita fingerlings were in the order of turmeric > garlic > ginger > onion > fenugreek > cumin > coriander > fennel > black pepper > bay leaf meal.Interpretation: The enhanced digestive and metabolic enzyme activities, antioxidant function, glucose homeostasis and improved innate immune function through modulation of the haemato-biochemical profile of Labeo rohita due to feeding of specific functional compounds present in turmeric, ginger and garlic meals compare to other phytogenic additives.