Growth potential and body composition of the African catfish Chrysichthys nigrodigitatus (Lacépède, 1803) juveniles fed different locally available feed ingredients | ||
| Damanhour Journal of Veterinary Sciences | ||
| Article 1, Volume 1, Issue 2, 2019, Pages 1-6 PDF (308.1 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/DJVS.28287 | ||
| Authors | ||
| Gboko K.C1; Koumi A.R.* 2; Atse B.C.2; Tano K.1 | ||
| 1Université Nangui Abrogoua (UNA), UFR des Sciences et Technologies des Aliments (STA), 02 BP 801 Abidjan 02, Côte D’Ivoire | ||
| 2Centre de Recherches Océanologiques (CRO), Département Aquaculture, BP V 18 Abidjan, Côte D’Ivoire | ||
| Abstract | ||
| Bagrid catfish Chrysichthys nigrodigitatus has a great aquaculture potential, excellent taste and high market value in the most countries of West Africa. However, it is lowly raised in these countries. Among the constraints to its low raising in Cote d'Ivoire, the unavailability of highquality feeds adapted to the different growth stages was often reported. The aim of this study was to formulate quality feeds with locally available agro-industrial byproducts for juvenile’s growth stage of Chrysichthys nigrodigitatus to improve the availability of adapted high quality feeds of this fish and its growth. Thus, locally agro-industrial by-products were selected based on their availability, cost and nutritional composition in the three fish farmed agro-ecological areas to formulate and produce three different isoproteic feeds (35 % crude protein) for juveniles Chrysichthys nigrodigitatus. Fish of mean initial weight 10.57 ± 3.88 g were fed with the three feeds produced in earthen ponds in triplicates groups per treatment. Feed consumption and fish growth (weight and length) were measured monthly. At the end of 120 days rearing, proximate and mineral compositions of the fish were determined. Final body weight and daily weight gain of fish fed varied respectively between 106.27±6.85 (G-35%) and 149.83±19.01g (SG2-35%), and 0.80±0.06 (G-35%) and 1.16±0.16 g/d (SG2-35%). Growth of Chrysichthys nigrodigitatus juveniles fed with isoprotéiques feeds varied with quality of locally raw material used for feeds production. Body moisture, ash, and gross energy were not influenced by feed used, but the least body protein content (18.41±0.67 %) and poorest body lipid content (0.99±0.14%) were observed in fish fed G- 35 % and SG2-35% respectively. Feed SG2-35% at 0.53 USD/kg recorded the most growth and the best feed utilization ratio. | ||
| Keywords | ||
| Chrysichthys nigrodigitatus; Feedstuffs; Feeds; Growth; Fish farmed agro-ecological areas | ||
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