Publications Scientifiques

[ Article ] Complete replacement of fish meal by unconventional proteins sources in diet of Oreochromis niloticus (L., 1758) fingerlings: growth performance, feed utilization and body composition

Date de soumission: 09-04-2018
Année de Publication: 2016
Entité/Laboratoire Laboratoire de Recherche sur les Zones Humides (LRZH)
Document type : Article
Discipline(s) : Hydrobiologie et Aquaculture
Titre Complete replacement of fish meal by unconventional proteins sources in diet of Oreochromis niloticus (L., 1758) fingerlings: growth performance, feed utilization and body composition
Auteurs DJISSOU Arnauld Sedjro Martin [1], VODOUNNOU D.S.J.V. [2], TOSSAVI COMLAN EPHREM [3], Toguyeni Aboubacar [4], FIOGBE EMILE DIDIER [5],
Journal: International Journal of Fisheries and Aquatic Studies
Catégorie Journal: Internationale
Impact factor: 0
Volume Journal: 4
DOI:
Resume For a period of 42 days, a total replacement of the fish meal by a mixture of unconventional sources of proteins (Azolla filiculoides, Dialium guineense leaf, brewers' yeast and maggot) was carried out for the of Oreochromis niloticus fingerlings. Five experimental diets isoproteic (34.6 ± 0.5%) reference diet and four test diets (A1 to A4) were used to feed O. niloticus fingerlings of average weight. At the end, the final mean weight (FW) and the daily weight gain (DWG) in the test diets (13.66 to 14.84g) were lower than those obtained by reference diet (18.45g) with P<0.05 The same observation was made with the SGR (1.17-1.33 vs 1.83% day-1) and PI (4.24-4.85 vs 5.80) in diets. The survival rate was not affected by the experimental diets, in the same way for the FCR and the PER, except the diet A1 (P<0.05). Productive Protein Values (PPV) were between fin the reference diet A0 and 2 (0.39 vs 0.35 respectively) re are no significant difference with P>0.05 Threonine appears with methionine like factors limiting in test diets. Locally available unconventional proteins sources can totally replace fish meal without compromising growth performance, feed utilization and carcass traits but a close attention must be paid to methionine and threonine in order to satisfy nutrients requirements of O. niloticus fingerlings.
Mots clés Unconventional, isoproteic, limiting factor
Pages 242 - 247
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