Growth and economic performance of fingerlings of Oreochromis niloticus fed on different non-conventional feeds in out-door hapas at Akosombo in Ghana

Abstract

. They were fed to fingerlings of O. niloticus of average weight 7.0 ± 0.23 g stocked at 20 fish m -3 in out-door hapas for a period of 24 weeks. The study revealed that fish which were fed on Diet 1 grew significantly (P < 0.05) faster than those fed on the other diets. Fish growth was least on those fed on Diet 4. The incidence cost (IC) was highest (P < 0.05) in fish fed Diet 4 and lowest (P < 0.05) for fish fed Diet 2. The profit index was highest (P < 0.05) for fish fed diet 2 and lowest (P < 0.05) for fish fed Diet 2. O. niloticus fingerlings fed WB based diet produced the fastest growth while fingerlings fed PM based diet was the most cost-effective diet.

Optimization of maggot production from a mixture of chicken viscera and soya cake based on different ratios

“…Fish meal is the reason of the high price of feed (Bamba et al, 2008) due to its richness in essential amino acids. Some agricultural byproducts are increasingly used as source of proteins in fish feed (Azaza et al, 2006;Abarike et al, 2013). The use of these sources of proteins has already provided good results (Nyawamziza, 2007;Médale et al, 2013;Djissou et al, 2016).…”