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

Theophilus Babalola
David Apata


Puni tekst: engleski PDF 236 Kb

preuzimanja: 972

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Sažetak

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 (P0.05) 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.

Ključne riječi

carcass composition; cod liver oil; fish oil replacement; growth performance; heterobranchus longifilis; palm oil; polyunsaturated fatty acids

Hrčak ID:

94079

URI

https://hrcak.srce.hr/94079

Datum izdavanja:

20.12.2012.

Posjeta: 1.300 *