Evaluation of different dietary additives based on growth performance, innate immunity and disease resistance in juvenile Amur catfish, Silurus asotus

Three different dietary additives were evaluated based on growth performance, innate immune responses and disease resistance in juvenile Amur catfish Silurus asotus . Four diets were prepared by supplementing 0.4% Song-gang ® stone (SG), 0.05% Yucca meal (YM), 0.05% β-glucan (BG) in combination with...

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Bibliographic Details
Published in:	International aquatic research Vol. 9; no. 4; pp. 351 - 360
Main Authors:	Amoah, Yaa Tiwaah, Moniruzzaman, Mohammad, Lee, Seunghan, Bae, Jinho, Won, Seonghun, Seong, Minji, Bai, Sungchul C.
Format:	Journal Article
Language:	English
Published:	Berlin/Heidelberg Springer Berlin Heidelberg 01-12-2017 Islamic Azad University, Tonekabon Branch, Vali abad Islamic Azad University
Subjects:	Additives Amur catfish Aquatic Pollution Body weight Body weight gain Catfish Diet Disease resistance Earth and Environmental Science Economics Ecotoxicology Environment Evaluation Feed conversion efficiency Feed efficiency Feeding experiments Feeds Fish Freshwater & Marine Ecology Freshwater fishes Glucan Growth Growth rate Immune response Immune responses Immunity Innate immunity Juveniles Lysozyme Marine & Freshwater Sciences Original Research Proteins Silurus Silurus asotus Song-gang® stone Stone Sulfur Superoxide dismutase Survival Waste Water Technology Water Water Management Water Pollution Control Weight gain Yucca meal β-Glucan Growth Song-gang Yucca meal Amur catfish β-Glucan Immune responses stone
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Summary:	Three different dietary additives were evaluated based on growth performance, innate immune responses and disease resistance in juvenile Amur catfish Silurus asotus . Four diets were prepared by supplementing 0.4% Song-gang ® stone (SG), 0.05% Yucca meal (YM), 0.05% β-glucan (BG) in combination with 0.04% SG and 0.05% BG (SG + BG) to a basal commercial diet (control; CONT). Triplicate groups of fish averaging 4.95 ± 0.05 g were fed one of the test diets between 3 and 5% body weight for 8 weeks. At the end of the feeding trial, weight gain, specific growth rate, feed efficiency and protein efficiency ratio of fish fed SG and SG + BG were significantly higher than those of fish fed the BG and CONT diets ( P < 0.05). Lysozyme activity in fish fed the SG, YM, and SG + BG diets was significantly higher than those of fish fed the CONT diet. Super oxide dismutase (SOD) activity was significantly higher among fish fed the SG, YM, BG and SG + BG diets than fish fed the CONT diet. After 14 days challenge test with Edwardsiella tarda , cumulative survival rates of fish fed the SG and SG + BG diets were significantly higher than those of fish fed the BG and CONT diets. Results revealed that dietary SG or SG + BG diets had positive responses over other additives in juvenile Amur catfish. However, Song-gang ® stone is proposed to be a cheaper dietary additive contributing 0.04 cents/kg of feed based on economic point of view.
ISSN:	2008-4935 2008-6970
DOI:	10.1007/s40071-017-0181-2