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Vol.2 , No. 4, Publication Date: Jul. 29, 2015, Page: 109-112
, Specific growth rate (SGR), Feed conversion ratio (FCR), Survival rate (SR) and Protein efficiency ratio (PER) were determined according to standard procedures. The data collected were analyzed using analysis of variance (ANOVA) and Duncan’s Multiple Range Test was used to separate the differences among the means. pH values of all the treatments were not significantly different. The water temperature of T4 and T5 were significantly higher p<0.05 than other treatments. Ammonia content of T1 varied significantly p<0.05 than other treatments. Dissolved oxygen content of T5 was significantly higher p<0.05 than other treatments. The SR, MWG, SGR and PER of T5 varied significantly p<0.05 than other treatments. Contrary to the above trend, the FCR of T5 was significantly lower among the treatments. The findings in this study suggest that water level is a crucial factor that must be achieved for optimum growth, nutrient utilization and survival of fish.&picture=http://www.aascit.org/aascit/decorators/img/journal/923.jpg)
| [1] | Adebola Oluyinka Ajiboye, Department of Animal Science and Fisheries Management, Bowen University, Iwo, Osun State, Nigeria. |
| [2] | Adetunji Quadri Aremu, Department of Animal Science and Fisheries Management, Bowen University, Iwo, Osun State, Nigeria. |
Water level is a critical factor that should be taken into consideration in ensuring optimum growth, nutrient utilization and survival of fish species. This study was conducted to investigate the effects of water level on nutrient utilization, growth, survival of African catfish, Clarias gariepinus. 225 samples of C. gariepinus of mean weight 198.50g were randomly stocked at 15 fish per water volume and replicated thrice. Each treatment was assigned 10, 20, 30, 40 and 50 liters of water and denoted T1, T2, T3, T4 and T5 respectively. Water quality parameters of the water medium and growth parameters such as Mean weight gain (MWG), Specific growth rate (SGR), Feed conversion ratio (FCR), Survival rate (SR) and Protein efficiency ratio (PER) were determined according to standard procedures. The data collected were analyzed using analysis of variance (ANOVA) and Duncan’s Multiple Range Test was used to separate the differences among the means. pH values of all the treatments were not significantly different. The water temperature of T4 and T5 were significantly higher p<0.05 than other treatments. Ammonia content of T1 varied significantly p<0.05 than other treatments. Dissolved oxygen content of T5 was significantly higher p<0.05 than other treatments. The SR, MWG, SGR and PER of T5 varied significantly p<0.05 than other treatments. Contrary to the above trend, the FCR of T5 was significantly lower among the treatments. The findings in this study suggest that water level is a crucial factor that must be achieved for optimum growth, nutrient utilization and survival of fish.
Keywords
Water Level, Growth, Nutrient Utilization, Survival, Treatments
Reference
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