Effects of dietary supplementation of lysine and methionine in tempeh-based diet on growth performance and feed utilization of tiger grouper, Epinephelus fuscoguttatus juveniles

Chor, Wei Kang and Lim, Leong Seng and Rossita Shapawi, (2016) Effects of dietary supplementation of lysine and methionine in tempeh-based diet on growth performance and feed utilization of tiger grouper, Epinephelus fuscoguttatus juveniles. Malaysian Applied Biology, 45 (1). pp. 81-87. ISSN 0126-8643

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Abstract

The potential of tempeh (TMP) with supplementation of methionine (Met) and lysine (Lys) as a substitute of fishmeal (FM) was evaluated based on the growth performance and feed utilization for tiger grouper (Epinephelus fuscoguttatus) juveniles. Three diets were formulated to replace FM with TMP at 0% (D1, control diet), 40% without essential amino acids (EAAs) supplementation (D2) and 40% with EAAs supplementation (D3, 0.5% of Met and 0.5% of Lys) and fed to triplicate groups of fish (22.90±0.48g) twice a day for 8 weeks. Weight gain (WG), specific growth rate (SGR) and feed intake (FI) of D1 group (114.31%, 1.59%, and 45.51 g fish-1 , respectively) were significantly higher than those fed with TMP-based diets (P<0.05). On the other hand, supplementation of EAAs in D3 was able to significantly improve the protein efficiency ratio (PER) and net protein utilization (NPU) (1.17% and 23.13%, respectively) compared to other diets (P<0.05). Supplementation of EAAs reduced whole-body lipid (P<0.05) but slightly increased whole body protein (P>0.05) of the fish. In the present study, results indicated that supplementation of EAAs was only able to improve feed utilization (PER and NPU) but not in growth performance (WG and SGR) of E. fuscoguttatus fed on TMP-based diets.

Item Type: Article
Uncontrolled Keywords: Epinephelus fuscoguttatus, Tempeh, methionine, lysine, growth performance, feed utilization
Subjects: Q Science > QL Zoology
Divisions: SCHOOL > Borneo Marine Research Institute
Depositing User: Munira
Date Deposited: 23 Mar 2018 08:17
Last Modified: 23 Mar 2018 08:17
URI: http://eprints.ums.edu.my/id/eprint/19455

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