Marine Fish Oil Replacement with Lard or Basa Fish () Offal Oil in the Diet of Tiger Puffer (): Effects on Growth Performance, Body Composition, and Flesh Quality

Overview

Journal Animals (Basel)

Date 2024 Apr 13

PMID 38612236

Authors

Guoxu Liu

Lin Li

Shuqing Song

Qiang Ma

Yuliang Wei

Mengqing Liang

Houguo Xu

Affiliations

Soon will be listed here.

Abstract

Lard (LD) and Basa fish offal oil (BFO) have similar fatty acid profiles, both containing high contents of saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA). The present study aimed to investigate the efficacy of partial or complete replacement of marine fish oil (MFO, herring oil) by LD or BFO in the diets of tiger puffer. The control diet contained 49.1% crude protein and 9.28% crude lipid content including 6% added MFO. In other diets, 1/3, 2/3, and 3/3 of the added MFO was replaced by LD or BFO, respectively. Each diet was fed to triplicate tanks of juvenile fish (initial body weight, 13.88 g). A 46-day feeding trial was conducted in a flow-through seawater system. Each diet was fed to triplicate 200-L rectangular polyethylene tanks, each of which was stocked with 30 fish. Fish were fed to satiation three times a day. The complete replacement of added MFO (replacing 65% of the total crude lipid) had no adverse effects on fish growth performance in terms of survival (>94%), weight gain (360-398%), feed intake (2.37-3.04%), feed conversion ratio (0.84-1.02), and somatic indices. The dietary LD or BFO supplementation also had marginal effects on fish body proximate composition, biochemical parameters, muscle texture, and water-holding ability, as well as the hepatic expression of lipid metabolism-related genes. Partial (2/3) replacement of added MFO by LD or BFO did not significantly reduce the muscle n-3 LC-PUFA content, indicating the n-3 LC-PUFA sparing effects of SFA and MUFA in LD and BFO. In general, dietary LD or BFO reduced the peroxidation level and led to significant changes in the muscle volatile flavor compound profile, which were probably attributed to the change in fatty acid composition. The results of this study evidenced that LD and BFO are good potential lipid sources for tiger puffer feeds.

Citing Articles

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PMID: 40077490 PMC: 11899666. DOI: 10.3390/foods14050788.

Efficacy of Palm Oil Application in Tiger Puffer Diets: Growth, Body Composition, Muscle Texture, and Lipid Metabolism.

Fan Y, Xiong H, Liu J, Liu G, Ma Q, Wei Y Aquac Nutr. 2024; 2024:2709579.

PMID: 39555566 PMC: 11333123. DOI: 10.1155/2024/2709579.

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