Effects of dietary tuna hydrolysate supplementation on feed intake, growth performance, feed utilization and health status of Asian sea bass (Lates calcarifer) fed a low fish meal soybean meal‐based diet

Effects of dietary tuna hydrolysate supplementation on feed intake, growth performance, feed utilization and health status of Asian sea bass (Lates calcarifer) fed a low fish meal soybean meal‐based diet

This study aimed to examine the effects of dietary tuna hydrolysate supplementation on feed intake, growth, feed utilization and health status of Asian sea bass. Experimental diets included a high fish meal‐based diet (HFM diet) containing 45% of fish meal, a low fish meal‐based diet (LFM diet) in w...

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Bibliographic Details
Published in:Aquaculture research Vol. 53; no. 11; pp. 3898 - 3912
Main Authors: Tola, Siriporn, Sommit, Noppasin, Seel‐audom, Mintra, Khamtavee, Pimporn, Waiho, Khor, Boonmee, Teerapat, Yuangsoi, Bundit, Munpholsri, Nut
Format: Journal Article
Language:English
Published: Oxford Hindawi Limited 01-08-2022
Subjects:
Asian sea bass
Aspartate aminotransferase
Carcasses
Chemical composition
Cholesterol
Diet
Dietary supplements
Feed conversion efficiency
Feed efficiency
feed intake
feed utilization
Feeds
Fish
Fish meal
Fishmeal
growth
Growth rate
Hepatopancreas
Histopathology
Hydrolysates
Intestine
Intestines
Juveniles
Lysozyme
Marine fishes
Nutrient deficiency
Palatability
Physical growth
plant protein
Proteins
Sea bass
Serum
Serum albumin
soybean meal
Soybeans
Superoxide dismutase
Triglycerides
Trypsin
tuna hydrolysate
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Summary:This study aimed to examine the effects of dietary tuna hydrolysate supplementation on feed intake, growth, feed utilization and health status of Asian sea bass. Experimental diets included a high fish meal‐based diet (HFM diet) containing 45% of fish meal, a low fish meal‐based diet (LFM diet) in which 55% of fish meal protein was replaced with soybean meal and the LFM diet coated with 2.5% tuna hydrolysate (LFM + TH diet). Fish were fed diets for 8 weeks. Growth rate, feed intake, feed efficiency, protein efficiency ratio, nitrogen retention, intraperitoneal fat and serum albumin of fish‐fed LFM + TH diet were significantly higher than those of fish‐fed LFM diet (p < 0.05). No significant differences in carcass chemical compositions, serum cholesterol, triglyceride, aspartate aminotransferase, lysozyme activity, superoxide dismutase and trypsin and lipase activities were found in hepatopancreas and anterior intestine among the dietary treatments. Fish‐fed LFM + TH diet displayed a longer length of distal intestine villi than those of fish‐fed LFM + TH diet. No histopathological changes in the liver were observed in this study. The results suggest that dietary supplementation of 2.5% tuna hydrolysate is sufficient to enhance the diet palatability, which can increase the replacement levels of fish meal protein with soybean meal up to 55% in a low fish meal soybean meal‐based diet without negative impacts on feed intake and growth performance of juvenile Asian sea bass.
Bibliography:Correction added on 12 May 2022, after first online publication: name order for Khor Waiho has been corrected throughout the article.
ISSN:1355-557X
1365-2109
DOI:10.1111/are.15894