Dietary guaiacol improves the growth of juvenile abalone, Haliotis discus hannai Ino

作者：Zhang Wenbing^*; Mai Kangsen; Xu Wei; Liufu Zhiguo; Tan Beiping

来源：Chinese Journal of Oceanology and Limnology, 2009, 27(4): 697-702.

DOI：10.1007/s00343-009-9206-z

• Haliotis discus hannai
• growth
• body composition
• guaiacol

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).

• 出版日期2009-11
• 单位中国海洋大学