Dietary guaiacol improves the growth of juvenile abalone, <Emphasis Type="Italic">Haliotis discus hannai</Emphasis> Ino |
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| Authors: | Email author" target="_blank">Wenbing?ZhangEmail author Kangsen?Mai Wei?Xu Zhiguo?Liufu Beiping?Tan |
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| Institution: | (1) Department of Zoology, The University of Melbourne, Gate 12 Royal Parade, 3052 Parkville, Melbourne, Australia;(2) Blk 190 - Bukit Batok West Ave 6 #06-33, Singapore, 650 190, Singapore |
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| Abstract: | We conducted a preliminarily study on the effects of dietary guaiacol on growth performance of abalone, Haliotis discus hannai Ino. Seven semi-purified diets were formulated with graded levels of guaiacol (0, 5, 10, 50, 100, 500, and 1 000 mg kg?1). Abalone (initial weight: 0.29 ± 0.01 g; initial shell length: 8.55 ± 0.27 mm) were fed with these diets in a re-circulated
water system for 152 days. Guaiacol significantly improved the specific growth rate (SGR) (P<0.05); excessive dietary guaiacol (1 000 mg kg?1) led to significantly high mortality (P<0.05), and lipid content in the soft body increased significantly after dietary guaiacol (P<0.05). Activities of catalase and phenoloxidase (PO) in the viscera were significantly stimulated by dietary guaiacol (P<0.05). Broken-line analysis based on SGR indicated that the minimum dietary guaiacol for the optimal growth of juvenile abalone
is 15.43 mg kg?1. |
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| Keywords: | Haliotis discus hannai growth body composition guaiacol |
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