The use of fish silage to increase feed efficiency and growth of grouper (Epinephelus coioides) in floating net cages

Agus Putra As,Muhammad Amin,Muhammad Hatta,Eva Ayuzar,Baihaqi Baihaqi

doi:10.13170/depik.10.3.23105

Abstract

This study aimed to investigate the efficiency of fish silage mixed in compounded diets on growth and survival rate of grouper (Epinephelus coioides). Grouper (2,34±0,24 cm, and 4,17±1,82 g) were divided into four groups and cultivated in 1x1x1,5 m floating net cages. Each group fed with compounded diets containing 0, 1, 3 and 5 g/kg fish silage diet twice daily. Fish were sampled for growth performances and feed efficiency at 14 days interval for 10 weeks. Results indicated that compounded diets at 1 and 3 g/kg silage affected the growth rate. Total length, specific growth rate and weight gain significantly increased in fish received 1 and 3 g/kg silage diets. The feed intake seen to be highest in groups administered 3 g/kg silage, whereas the best feed conversion ratio was found in fish fed 1 g/kg silage. Thus, this study indicated that using fish silage in compounded diets may affect feed efficiency and growth performances of grouper juveniles.Keywords:Artificial dietFeedingFish silageGrouperNet cages

Highlights

The fisheries sector is developing in several countries including Indonesia, which is targeting the value of fishery exports to reach USD 6 billion by 2021
The grouper juveniles showed the weight escalation, while groups that received fish silage had a better quality in growth responses compared to the control (Figures 1 and 2)
This study indicated that feed intake and conversion ratio were significantly affected by fish silage mixed diets

Summary

Introduction

The fisheries sector is developing in several countries including Indonesia, which is targeting the value of fishery exports to reach USD 6 billion by 2021 To achieve this target, the government increase production from aquaculture, which is one of the food providers in the world, grouper, shrimp, and seaweed (KKP, 2021). The government increase production from aquaculture, which is one of the food providers in the world, grouper, shrimp, and seaweed (KKP, 2021) Some countries such as Taiwan, China, Thailand, and Indonesia had succeeded in producing fish intensively (Samad et al, 2014a; Liao et al, 2001; Rimmer et al, 2004). The use of artificial feed with the addition of silage is being considered to increase the efficiency of grouper feed and prevent damage to aquaculture water

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Conclusion