Dietary biotin requirement of juvenile blunt snout bream, Megalobrama amblycephala

This study was conducted to determine the optimal dietary biotin requirement of juvenile Megalobrama amblycephala. Quadruple groups of fish (initial average weight 2.01 ± 0.01 g) were fed thrice daily with six isonitrogenous and isoenergetic purified diets containing 0 (basal diet), 0.015, 0.049, 0....

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Bibliographic Details
Published in:Aquaculture nutrition 2014-12, Vol.20 (6), p.616-622
Main Authors: Qian, Y, Li, X.‐F, Sun, C.‐X, Jiang, G.‐Z, Xu, W.‐N, Wang, Y, Liu, W.‐B
Format: Article
Language:English
Subjects:
biotin
blunt snout bream
body composition
condition factor
diet
feed conversion
feed intake
fish
growth performance
hepatic enzyme activity
hepatosomatic index
liver
Megalobrama amblycephala
nitrogen
protein efficiency ratio
pyruvate carboxylase
regression analysis
specific growth rate
survival rate
water content
weight gain
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Summary:This study was conducted to determine the optimal dietary biotin requirement of juvenile Megalobrama amblycephala. Quadruple groups of fish (initial average weight 2.01 ± 0.01 g) were fed thrice daily with six isonitrogenous and isoenergetic purified diets containing 0 (basal diet), 0.015, 0.049, 0.158, 0.624 and 2.49 mg kg⁻¹ biotin, respectively, for 8 weeks. Results showed that survival rate, final weight, feed intake, specific growth rate, protein efficiency ratio and nitrogen retention efficiency all increased significantly (P  0.05) within the biotin range tested. Contrary to moisture content, whole‐body protein and lipid contents showed a positive correlation with dietary biotin levels. In addition, liver biotin content increased significantly (P 
ISSN:1353-5773
1365-2095
DOI:10.1111/anu.12114