Effects of dietary choline on growth performance, lipid deposition and hepatic lipid transport of grouper (Epinephelus coioides)

• DOI: 10.1111/anu.12413
• Publication Date: 2016-04-10T18:56:39Z
• Authors: D.G. Qin; X.H. Dong; B.P. Tan; Q.H. Yang; S.Y. Chi; H.Y. Liu; S. Zhang
• Keywords: Choline; Epinephelus

The number of 360 individuals with an average initial weight 87.8 ± 0.04 g was fed six diets containing graded levels choline at 8.1 (control group), 602.5, 1119.0, 1511.5, 1970.0 and 4029.0 mg kg−1 diet, respectively, to investigate the effects dietary on growth performance, lipid deposition hepatic transport for grouper, Epinephelus coioides. Dietary methionine estimated be 10.02 kg−1, less than requirement (13.10 kg−1). results 10-week study period indicated that best values specific rate (SGR), feed conversion (FCR) protein efficiency (PER) all occurred in 1119.0 diet (P < 0.05). survival range increased from 1511.5 then plateaued. supplementation significantly decreased liver content grouper 0.05), but muscle tended firstly Liver concentration reached a plateau levelled off Serum high density lipoprotein-cholesterol (HDL-C) total cholesterol (TCHO) were supplementation. A reversed tendency, however, found triglyceride. Broken-line regression analysis SGR 1093.7 1579.7 respectively.