Evaluation of the Fatty Acid Composition of Earthworm Eisenia andrei Meal as an Alternative Lipid Source for Fish Feed

Fernando Isea-León^{1, 2,} , Vanessa Acosta-Balbás¹, Leandra Beatriz Rial-Betancoutd², Ana Luisa Medina-Gallardo² and Ble Mélécony Célestin³

¹Universidad Técnica de Manabí. Escuela de Acuicultura y Pesquería. Facultad de Ciencias Veterinarias. Grupo de Sanidad e Inocuidad y Ambiente; y Grupo de Biodiversidad y Ecología de Sistemas Acuáticos. Bahía de Caráquez EC131450, Ecuador

²Universidad de Los Andes. Departamento de Ciencias de Alimentos. Laboratorio de Ciencias de Alimentos. Facultad de Farmacia y Bioanálisis. Grupo de Ecología y Nutrición. 5101 Mérida. Venezuela

³Centre de Recherches Océanologiques - CRO·Department of Aquaculture Abidjan. Code. 00225. Abidjan, Ivory Coast

Cite this paper:
Fernando Isea-León, Vanessa Acosta-Balbás, Leandra Beatriz Rial-Betancoutd, Ana Luisa Medina-Gallardo and Ble Mélécony Célestin. Evaluation of the Fatty Acid Composition of Earthworm Eisenia andrei Meal as an Alternative Lipid Source for Fish Feed. Journal of Food and Nutrition Research. 2019; 7(10):696-700. doi: 10.12691/jfnr-7-10-2

Abstract

This study propose to evaluate the fatty acid composition of the earthworm Eisenia andrei as an alternative lipid source for fish feed. Methods: The analytical composition of moisture, protein, lipids, ash and non-nitrogenous extract of earthworm meal Eisenia andrei and fishmeal was initially determined. Subsequently, the fatty acid contents of the lipids of these two ingredients were determined by gas chromatography. Results: Significant differences were found in the content of group ω-6 Polyunsaturated Fatty Acids (PUFA), with higher value (19.85 %) in the earthworm flour vs. 13,29% in fish meal, specifically the group of C14 PUFA, C16:2 n-4; C18: 2 n-6; C18: 3 n-6; C20:2 n-6; C20:3 n-6 and n-6 C20:4. The content of ω-3 fatty acids, mainly C20:5 n-3 and n-3 C22:6 is also important in the earthworn flour. Conclusions: the flour of E. Andrei could be recommended as a source of protein and lipid in fish feed because of its high protein and PUFA content.

Keywords:
earthworm biochemical composition fish feed PUFA nutritional value

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