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Journal of Scientific Research and  Studies

Journal of Scientific Research and Studies Vol. 6(1), pp. 11-21, April, 2019

ISSN 2375-8791

Copyright 2019

Author(s) retain the copyright of this article

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Full Length Research Paper

Crickets (Orthoptera: Gryllidae) as a food for faster growth and better quality of tilapia

 

Fahimee J.1,2*,  NurFarahani J.1  and  Idris A.B.1

1Centre of Insect Systematics, National University of Malaysia, 43600 Bangi, Selangor, Malaysia.
2Agrobiodiversity and Environmental Research Centre, MARDI Headquarters, 43400 Serdang Selangor, Malaysia.
 

*Corresponding author. E-mail: miesre@mardi.gov.my
 

Accepted 25 April, 2019

 

 Abstract

 

The use of insects as an alternative food source in the fishing industry has been long practiced, but a less in-depth study has been conducted to understand its effectiveness. The objective of this study is to evaluate the effects of tilapia growth and quality when crickets are given as food. We used 180 hybrid tilapia Oreochromis sp. which were fed with crickets, Gryllus bimaculatus and three commercialized fish pellets, namely: Cargill 6113, Bintang BT01 and Bintang BT04. The result showed that crickets had caused a significantly higher fish growth rate compared to when the fish were fed with pellets. Tilapia fed cricket had a mean body weight of 188.315.73 g and a length of 21.170.19 cm as compared to the best commercial food at 121.272.45 g and 18.760.19 cm for body weight and length, respectively. There was no significant difference on the fish quality assessment. The crickets as food also produced fishes rich in protein (19.9 g/100g), comparable with Cargill 6113 pellet (20 g/100g), fat (0.8 g/100g) equivalent to Bintang BT01 pellet, and provide the highest energy (365 kJ) compared with other pellets. Carbohydrates are found only in fish fed Bintang BT01 pellet (0.7 g/100g). The requirement of tilapia towards a specific combination of essential amino acids from food sources may explain the different protein contents in the harvested fish. Fish fed cricket has the lowest accumulation of all types of amino acids tested. The use of crickets is the most cost-effective because it is only worth RM 0.007 per gram of fish compared to Cargill 6113 pellet (RM 0.012).

Key words: Tilapia, crickets, growth, quality, food sources.

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Vol. 6 Issue 1
 

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