Growth performances of three populations of Oreochromis niloticus (Linnaeus, 1758) in Sudano-Guinean altitude zone of Cameroon

Abstract

In order to contribute to the improvement of aquaculture production, growth performances of three populations of Oreochromis niloticus from Cameroon were studied in the IRAD station of Foumban. A total of 600 post-larvae (0.03 ± 0.01g) from three hydrogeographics origins (Niger, Sanaga and IRAD Station) were randomly distributed in duplicate in 6 concrete tanks of 1 m² each at a density of 100 ind./m². The main results were as follows: except for survival rate and food consumption, all other growth performances were significantly influenced. Furthermore, except the nutrient quotient which highest significative value was achieved in the population of the IRAD station, the value of all the others characteristics were significantly very high in the population of Niger Basin.