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Title: Effect of dietary palm oil on growth and carcass composition of Heterobranchus longifilis fingerlings
Authors: Babalola, Theophilus Olayiwola
Keywords: Carcass composition
Cod liver oil
Fish oil replacement
Growth performance
Heterobranchus longifilis
Palm oil
Polyunsaturated fatty acids
Issue Date: 2012
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<0.05) higher in fish fed 6.0% PO diet. This study suggests that the replacement of cod liver oil by palm oil as lipid supplement in the diet permitted a clear improvement of growth and FCR of H. longifilis. This indicates that PO can effectively replace FO in the diet of the fish without compromising fish growth and feed efficiency.
URI: http://repository.fuoye.edu.ng/handle/123456789/1061
ISSN: 1332 – 9049
Appears in Collections:Fisheries Journal Publications

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