alexa Formulation of Cost Effective Grow out Feeds for Macrobrachium rosenbergii Culture in Fiji
ISSN: 2572-3103

Journal of Oceanography and Marine Research
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Research Article

Formulation of Cost Effective Grow out Feeds for Macrobrachium rosenbergii Culture in Fiji

Khairul Azam* and Temalesi Koroi
Faculty of Science, Technology & Environment, The University of the South Pacific, Fiji
Corresponding Author : Khairul Azam
School of Marine Studies, The University of the South Pacific
Private Mail Bag, Laucala Campus, Suva, Fiji
Tel: +679 834 1915
E-mail: [email protected]
Received July 03, 2013; Accepted July 25, 2013; Published July 27, 2013
Citation: Azam K, Koroi T (2013) Formulation of Cost Effective Grow Out Feeds for Macro brachium rosenbergii Culture in Fiji. Oceanography 1: 109. doi: 10.4172/2332-2632.1000109
Copyright: © 2013 Azam K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

The change from traditional subsistence to semi-intensive is leading to an increase in the demand for aquaculture feeds. The culture of freshwater prawn, Macrobrachium rosenbergii in Fiji as protein source and source of income for small-scale farmers is important. However, due to the unavailability and high cost of feed ingredients and formulated feeds, the supply and quality of feeds for aquaculture development is restricted. In addition, the lack of information on cost-effective channels to deliver feeds to farmers has contributed to the poor production and profitability. A nutritional study was conducted to evaluate growth performance of M. rosenbergii fed iso-energetic, low cost formulated diets, using locally available ingredients in ponds for 124 days. Two formulated (MBM+MM+CP-diet 1 and FM+Wht-diet 2) and two commercial (Crest tilapia pellet-diet 3 and Pacific prawn pellet - diet 4) diets were fed. The study indicated no significant differences for weight gain and survival rate (P ≥ 0.05). It was observed that diet 2 induced highest growth rate while the lowest FCR (0.97 ± 0.02) value was obtained for the same diet. The survival of prawns ranged between 83.43 mm ± 5.55 and 89.26 mm ± 0.40%. The highest prawn production was obtained with diet 2 at 0.16 kg/m2. The economic analysis of M. rosenbergii production showed that diet 2 was the least expensive (FJ$0.53) to produce 1 kg of prawn as compared to the commercial diets (Pacific Prawn feed -FJ$0.89 and Crest Tilapia feed - FJ$0.69). Therefore, this study suggests that M. rosenbergii growth was slightly improved when using the formulated diet 2 although the highest survival rate (89.26 ± 0.40%) was obtained from the formulated diet 1. Diet 2 may be recommended to the farmers for monoculture of M. rosenbergii in ponds in comparison to both commercial diets in Fiji.

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