UN SDG
Aquatic Food Studies
2025, Vol 5, Num, 1 (Pages: AFS294)
Comparative Length-Weight Relationship, Condition Factor and Nutritional Value of Cultured African Catfish, Clarias gariepinus Fed with Two Feed Types and Their Mixture
2 Department of Fisheries Science and Aquaculture, CSIR College of Science and Technology, Accra, Ghana DOI : 10.4194/AFS294 - Indicators for assessing healthy food fish include length-weight relationship (LWR), condition factor (K), and nutritional value (NV). A study was conducted to compare the LWR, CF and NV of African catfish, Claries gariepinus of initial size range 1.2 to 1.5 g and initial mean weight 1.3±0.1 g. They were fed separately with commercial catfish feed (A), commercial tilapia feed (B) and their equal mixture (C) in hapa-in-pond systems for 77 days. The LWRs were computed by least squares method applied to the log transformed data. A linear regression analyses were carried out on a log transformed LWR equation to establish K and the NV determined by proximate analyses of fillets of the cultured fish. The computed K were 1.2, 1.2 and 0.9 for A, B and C, respectively. Aside from ash, there were significant differences (Tukey`s HSDT, P<0.05) in nutrient and gross energy contents among the fillets. However, all recorded values were within the nutritional range required by humans. Fat contents of the fillets were less than 5.0%, indicating lean fish. Hence, depending on availability and costs a catfish feed, a tilapia feed or their equal mixture could be fed to C. gariepinus during its culture. Keywords : Catfish feed Cultured fish Food fish Hapa-in-pond systems Tilapia feed
