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Effect of dietary palm oil on growth and carcass composition of Heterobranchus longifilis fingerlings

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Author(s): Theophilus Babalola | David Apata

Journal: Journal of Central European Agriculture
ISSN 1332-9049

Volume: 13;
Issue: 4;
Start page: 782;
Date: 2012;
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Keywords: carcass composition | cod liver oil | fish oil replacement | growth performance | heterobranchus longifilis | palm oil | polyunsaturated fatty acids

ABSTRACT
This study investigated the effects of dietary palm oil (PO) on growth performance and carcass composition of Heterobranchus longifilis with the goal of replacing dietary fish oil with palm oil. In this study triplicate groups of H. longifilis fingerlings were fed the experimental diets for 8 weeks. Five isonitrogenous (45% crude protein), isoenergetic (20 KJg-1) experimental diets were made containing either 6.0% FO and 0% PO, 4.5% FO and 1.5% PO; 3.0% FO and 3.0% PO; 1.5% FO and 4.5% PO; or 0% FO and 6.0% PO using soybean and fish meal as the protein source. Dietary palm oil had no significant effect on growth rate or feed conversion ratio. Similarly, No significant differences were observed between dietary treatments for moisture, protein and ash content in H. longifilis fingerlings. However, fillet saturated, monounsaturated fatty acids and liver lipid deposition were significantly (P
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