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

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.

Growth performance of Clarias gariepinus fingerlings fed diets containing varying levels of groundnut oil

“…fed different levels of Palm oil were not statistically different after 8 weeks. Inverse relation between body protein and lipid content was observed in this study and is in accordance with reported works by Jokumsen and Aisted, (1990);Bell et al, (2002) in Salmonids and by Babalola and Adebayo, (2007).…”

“…Caballero et al, (2004) had reported that the reduction of dietary essential fatty acids due to the inclusion of vegetable oils in the diets of fish tends to promote fat accumulation in the liver of sea bream. Babalola and Adebayo, (2007) however, reported that lipid, ash, protein, crude fibre, and moisture composition of Heterobranchussp. fed different levels of Palm oil were not statistically different after 8 weeks.…”

Evaluation of the biochemical responses of catfish (<i>Clarias gariepinus</i> Burchell, 1822) after replacing fish oil with plant-based oils in their diets

“…Studies have revealed that substantial use of vegetable oils as energy sources in fish diets yielded positive growth responses in fish (Babalola and Adebayo, 2007). The results obtained in this study have shown that plant-based oil sources could be used as excellent nutrient base in catfish feed manufacture.…”

The Growth and Body Composition of Clarias gariepinus Fingerlings Fed Combined Different Sources of Lipid

“…Recent studies have revealed that substantial use of vegetable oils as energy sources in fish diets have yielded positive growth response in fish [37,38]. The results gathered from the study have demonstrated that the three lipids source used are of good nutrient composition.…”