African Journal of Zoology

African Journal of Zoology Vol. 1 (4), pp. 025-030, December, 2013. © International Scholars Journals

Full Length Research Paper

Influence of dietary protein levels on growth, feed utilization and carcass composition of snakehead, PARACHANNA  OBSCURA  (Günther, 1861) fingerlings

Diane N. S. Kpogue1*, Grace A. Ayanou2, Ibrahim I. Toko2, Guy A. Mensah3 and Emile D. Fiogbe1

1Unité de Recherches sur les Zones Humides, Département de Zoologie et Génétique, Faculté des Sciences et Techniques, Université d’Abomey - Calavi, B.P. 526 Cotonou, Bénin.

2Unité de Recherche en Aquaculture et Ecotoxicologie Aquatique, Faculté d’Agronomie, Université de Parakou, B.P. 123 Parakou, Bénin.

3Institut National des Recherches Agricoles du Bénin, Centre de Recherches Agricoles d’Agonkanmey.01 BP 884, Recette Principale Cotonou 01, Bénin.

*Corresponding author. E-mail: senami_diane@yahoo.fr.

Accepted 12 October, 2013

Abstract

Five isoenergetic semi-purified diets were formulated to evaluate the effects of dietary crude protein levels on growth and feed utilization of snakehead, PARACHANNA OBSCURA (4.08 ± 0.07 g). Experimental diets were formulated to contain graded levels of crude protein (CP; 30, 40, 45, 50 and 60 g/100 g of diet). Fish feed on the tested diet in triplicate for 45 days. Seventy fingerlings were stocked per a 225 L cement tank. Growth performances and nutrient utilization parameters of fingerlings fed different diets varied significantly (P < 0.05) and the highest growth performance and nutrient utilization were obtained with fish fed on a 50% CP diet. The relationship between the dietary CP and specific growth rate (SGR) indicated that protein requirements of P. OBSCURA fingerlings ranged from 42.5 to 53.5% of diet.

Key words: Parachanna obscura fingerlings, protein requirements, growth performances, nutrient utilization.