Effects of a Total Dietary Fish Oil Replacement with Vegetable Oils to the Survival, Growth and Development of the Blue Swimming Crab Portunus Pelagicus Early Juveniles

Romano, Nicholas; Kohinoor, S.M. Shoyaib; Ebrahimi, Mahdi; Sm, Nurul Amin; Arshad, Aziz

doi:10.15406/jamb.2017.05.00107

Cited by 2 publications

(1 citation statement)

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“…Meanwhile, the fatty acid composition of the diets was measured according to [25]. This was done by extracting the lipids using chrloroform:methanol (2:1v/v) and the fatty acid methyl esters (FAME) were prepared by transesterfication with 0.4 M KOH-methanol.…”

Section: Experimental Dietsmentioning

confidence: 99%

Effects of a Total Dietary Fish Oil Replacement with Vegetable Oils to the Survival, Growth and Development of the Blue Swimming Crab Portunus Pelagicus Early Juveniles

Romano¹

2017

JAMB

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The feasibility of different vegetable based lipids as a complete replacement to dietary fish oil (FO) to blue swimmer crab Portunus pelagicus juveniles was assessed. A total of five iso-nitrogenous and iso-lipidic diets were formulated to contain FO, soybean oil (SBO), linseed oil (LSO), canola oil (CO), or palm oil (PO) as the main lipid source. The diets were fed to first staged juvenile crabs (total of 45 replicate crabs/treatment) over at least four molts. After 35 days, final sizes and weights were determined, and then measured for whole-body cholesterol. Crabs fed the FO, SBO, LSO, or CO-based diets showed similar specific growth rates (SGR) (p > 0.05) for carapace length and width, which was significantly higher (p < 0.05) compared to crabs in the dietary PO treatment. Whole-body cholesterol content was significantly lower for crabs fed the PO-based diets, which may have contributed to their poorer performance, compared to those fed the FO, LSO or CO-based diets. Results indicate SBO, LSO or CO can totally replace FO, which may improve cost-effective and sustainable diets for portunid crabs. Further research into the use of dietary PO blends with other vegetable oils should be conducted.

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Section: Experimental Dietsmentioning

confidence: 99%