Title: Growth Performance of Nile Tilapia (Oreochromis niloticus) as Affected by Stocking Density and Feed Types in Water Flow Through System
Abstract: 2 Abstract: Mixed-sex population of Oreochromis niloticus fingerlings were collected from a reputable farm and acclimatized for a week and randomly stocked at three densities of 300 fish m-3, 450 fish m-3 and 600 fish m-3 in twelve (12) circular fiber glass tanks, each with capacity of 3.08m3 of water at a nominal flow rate of 2L/min. Each stocking densities were fed with two types of feed {Multi feed (foreign), NIOMR feed (local)}. Each density/feed combination represents a treatment and each treatment replicated twice for statistical validation. Based on this present study, overall growth rate differed significantly among treatment (P<0.05) with low and intermediate stocking density treatments having higher growth than the high density treatment but with significant difference between the two different types of diet. On the other hand, the results of the experiment indicated that fish that were fed Multi feed diet had similar mean weight and percentage weight gain and grow significantly better (P<0.05) than those fed with NIOMR diet, although no significant difference was observed in specific growth rate between the NIOMR and Multi feed diet among all the treatments. In terms of the feed conversion ratio (FCR) between fish fed NIOMR feed and Multi feed, it was observed that the fish fed Multi feed had the best feed conversion ratio. Observations during this research indicated no record of spawning in any of the fiber tanks throughout the culture period of 24 weeks. Thus, it could be asserted that intensive tank culture of Nile tilapia in a flow-through system is a successful culture system in controlling excessive reproduction of O. niloticus. Overall results therefore recommended the suitability of NIOMR feed and Multi feed as a diet for O. niloticus fingerlings.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 10
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot