[ Effets de l’incorporation de la farine des larves du charançon de palmier (Rhynchophorus phoenicis) dans l’aliment sur la croissance des alevins du tilapia Oreochromis niloticus (Linneaus, 1758) «souche brésil » en Côte d’Ivoire ]
Volume 72, Issue 1, April 2024, Pages 1–9
Kolotcholoman SILUE1, N’Golo OUATTARA2, and Kouakou YAO3
1 UFR-Sciences de la Nature, Laboratoire de Biologie et de Cytologie Animales, Pôle de Recherche Pêche et Aquaculture, Université Nangui ABROGOUA, 02 BP 801 Abidjan 02, Abidjan, Côte d’Ivoire
2 UFR-Sciences de la Nature, Laboratoire de Biologie et de Cytologie Animales, Pôle de Recherche Pêche et Aquaculture, Université Nangui ABROGOUA, 02 BP 801 Abidjan 02, Abidjan, Côte d’Ivoire
3 UFR-Sciences de la Nature, Laboratoire de Biologie et de Cytologie Animales, Pôle de Recherche Production Animale, Université Nangui ABROGOUA, 02 BP 801 Abidjan 02, Abidjan, Côte d’Ivoire
Original language: French
Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
With the aim of using less expensive animal protein sources in fish feed, a growth study of tilapia Oreochromis niloticus was carried out following the incorporation of insect larvae meal into its feed. Three diets with incorporation rates of 15% (R15), 20% (R20) and 25% (R25) of Rhynchophorus phoenicis weevil larvae meal were prepared using a feed based on agricultural by-products as a control diet (AT). The basic composition of the diets was: soybean meal, cottonseed meal, rice bran, wheat bran, vegetable oil and premix. 480 fish with an average weight of 14 ± 0.1 mg were distributed in eight aquaria at a density of 60 larvae per aquarium in duplicate. They were fed to satiation for the first month, then at 10% of their total live weight for the second month. After 60 days of rearing, the best feed conversion (0.22 ± 0.03) and final weight (5.06 ± 0.85g) were obtained with the R20 diet, followed by the R15 diet (0.32 ± 0.11; 3.86 ± 1.5 g) and R25 (0.36 ± 0.07; 3.15 ± 0.69 g). The lowest daily growth (0.06 ± 0.01 g/day) and highest conversion index (0.41 ± 0.08) were recorded with the control. Survival rates were 91.86% or higher. At the end of this study, weevil larvae meal could be used as a protein source for tilapia feed.
Author Keywords: Oreochromis niloticus, feeding, Rhynchophorus phoenicis, growth, survival.
Volume 72, Issue 1, April 2024, Pages 1–9
Kolotcholoman SILUE1, N’Golo OUATTARA2, and Kouakou YAO3
1 UFR-Sciences de la Nature, Laboratoire de Biologie et de Cytologie Animales, Pôle de Recherche Pêche et Aquaculture, Université Nangui ABROGOUA, 02 BP 801 Abidjan 02, Abidjan, Côte d’Ivoire
2 UFR-Sciences de la Nature, Laboratoire de Biologie et de Cytologie Animales, Pôle de Recherche Pêche et Aquaculture, Université Nangui ABROGOUA, 02 BP 801 Abidjan 02, Abidjan, Côte d’Ivoire
3 UFR-Sciences de la Nature, Laboratoire de Biologie et de Cytologie Animales, Pôle de Recherche Production Animale, Université Nangui ABROGOUA, 02 BP 801 Abidjan 02, Abidjan, Côte d’Ivoire
Original language: French
Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
With the aim of using less expensive animal protein sources in fish feed, a growth study of tilapia Oreochromis niloticus was carried out following the incorporation of insect larvae meal into its feed. Three diets with incorporation rates of 15% (R15), 20% (R20) and 25% (R25) of Rhynchophorus phoenicis weevil larvae meal were prepared using a feed based on agricultural by-products as a control diet (AT). The basic composition of the diets was: soybean meal, cottonseed meal, rice bran, wheat bran, vegetable oil and premix. 480 fish with an average weight of 14 ± 0.1 mg were distributed in eight aquaria at a density of 60 larvae per aquarium in duplicate. They were fed to satiation for the first month, then at 10% of their total live weight for the second month. After 60 days of rearing, the best feed conversion (0.22 ± 0.03) and final weight (5.06 ± 0.85g) were obtained with the R20 diet, followed by the R15 diet (0.32 ± 0.11; 3.86 ± 1.5 g) and R25 (0.36 ± 0.07; 3.15 ± 0.69 g). The lowest daily growth (0.06 ± 0.01 g/day) and highest conversion index (0.41 ± 0.08) were recorded with the control. Survival rates were 91.86% or higher. At the end of this study, weevil larvae meal could be used as a protein source for tilapia feed.
Author Keywords: Oreochromis niloticus, feeding, Rhynchophorus phoenicis, growth, survival.
Abstract: (french)
Dans le but de recourir à des sources de protéines animales moins onéreuses dans l’alimentation des poissons, une étude de croissance du tilapia Oreochromis niloticus a été menée suite à l’incorporation de la farine des larves d’insectes dans son aliment. Trois régimes de taux d’incorporation de 15% (R15), 20% (R20) et 25% (R25) de farine des larves du charançon Rhynchophorus phoenicis ont été préparés à partir d’un aliment à base de sous-produits agricoles servant de régime témoin (AT). La composition de base des régimes était: tourteau de soja, tourteau de coton, sons de riz, sons de blé, huile végétale et prémix. 480 poissons d’un poids moyen de 14 ± 0,1 mg ont été répartis dans huit aquariums à la densité de 60 larves par aquarium en duplicata. Ils ont été nourris à satiété durant le premier mois puis à 10% de leur poids total vif au deuxième mois. Après 60 jours d’élevage, la meilleure conversion alimentaire (0,22 ± 0,03) et de poids final (5,06 ± 0,85g) ont été obtenus avec le régime R20, suivi du régime R15 (0,32 ± 0,11; 3,86 ± 1,5 g) et R25 (0,36 ± 0,07; 3,15 ± 0,69 g). La plus faible croissance journalière (0,06 ± 0,01 g/jour) et d’indice de conversion le plus élevé (0,41 ± 0,08) ont été enregistrés avec le témoin. Les taux de survie étaient supérieurs ou égalent à 91,86%. Au terme de cette étude la farine des larves de charançon pourrait servir de source de protéine pour l’alimentation du tilapia.
Author Keywords: Oreochromis niloticus, alimentation, Rhynchophorus phoenicis, Croissance, survie.
How to Cite this Article
Kolotcholoman SILUE, N’Golo OUATTARA, and Kouakou YAO, “Effects of incorporating palm weevil (Rhynchophorus phoenicis) larvae meal into feed on growth of tilapia Oreochromis niloticus (Linneaus, 1758) « brazil strain » fry in Côte d’Ivoire,” International Journal of Innovation and Scientific Research, vol. 72, no. 1, pp. 1–9, April 2024.
