Article Number: DRJVMAS69251034
DOI: https://doi.org/10.26765/DRJVMAS69251034
ISSN: 2734-2166

Vol. 7(1), Pp. 1-23, July 2022

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Creative Commons Attribution License 4.0.


Original Research Article

Comparative analysis of the growth performance and feed utilization of catfishes (Clarias Gariepinus) Burchell and Heterobranchus Longifilis-Geofroy- ST- Hilaire and their Hybrid (HeteroclariaS) under Mono and Polyculture systems

Solomon, J. R.*

Maiyaki, M. A.


Abstract

This study investigated the growth performance and feed utilization of two catfishes (C/arias gariepinus — Burchell, 1822) and Heterobranchus longifilis – Geoffroy-St-Hilaire) and their hybrid (Heteroclarias) reared under mono and Polyculture systems for a period of twelve weeks. In the monoculture system, each of the species and their hybrid was cultured separately while in the Polyculture system the two catfish species and their hybrid were cultured together stocked at eighteen (18) fingerlings per tank.  Fingerlings of mean weight 9.5g were stocked into eight (8 circular) plastic tanks each with 14cm and a height of 7cm with 50 liters of water. The fish were fed 3% body weight with 35% crude protein while the control groups were fed with commercial (coppens) feed of 2mm diameter. Feeding was done twice daily at 9.00am and at 6.00pm. The water was changed completely every 72 hours in all the culture systems. The physicochemical parameters were measured once weekly. The growth and nutrient utilization in the different culture groups were determined. The results revealed that there was significance difference (P<0.05) in the growth and nutrient utilization parameters of the two catfishes and their ‘irid. In the monoculture fed with the experimental diets, the hybrid catfish a highest mean weight of 177.2g followed by C. gariepinus, 159.4g while H. longifillis had the least 60g. While those fed with the commercial feed, the hybrid o had the highest final mean weight of 205.lg C. gariepinus 97.7 and H. longifillis 51.7. In the Polyculture system the ones fed with the experimental feed also show similar results with that of the monoculture system. The hybrid ESO the highest final mean weight of 130.lg, C.gariepinus 109.5g and H. longifilis 93.9g. In the control the hybrid also had the highest mean weight of 4.5g, C.gariepinus 91.3g and H longifilis had 50.7g. The physicochemical parameters were found to be within the recommended range for growth of the fishes. Data collected from fish weights were subjected to analysis of variance (ANOVA) using the SAS ANOVA procedure. Duncan’s multiple range test was used to compare differences among treatment means. Treatments were significantly different at P<0.05.


Keywords: Feed utilization, growth performance, catfishes


 Received: April 5, 2022  Accepted: May 19, 2022  Published: July 4, 2022


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