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Economic Evaluation, Growth Performance and Nutrient Utilization of Rumen Content in the Nutrition of African Catfish (Clarias Gariepinus) Burchell, 1822

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Abstract
  • A total of 225 Clarias gariepinus fingerlings with average weight of 8.30 g±0.01 were fed rations in which rumen content (RC) were included in a completely randomized design. They were grouped into 5 treatments of 3 replicates, each containing 15 fish, fed RC in a practical diet at 0, 6, 12, 18 and 24% dietary inclusion levels for 72 days. The total feed fed (TFF), average daily weight gain (ADWG) and protein productive value (PPV) were significantly affected (P<0.05) by the treatment while the specific growth rate (SGR), feed conversion ratio (FCR) and protein efficiency ratio (PER) were not significantly influenced (P>0.05) by the treatments. Fish fed 6% RC had the best mean weight gain (9.21g), SGR (0.42%/day) and feed efficiency (TFF) (0.49g), FCR (0.05) and PER(0.37g). A part from diet 2, MWG. SGR and PER were inversely related to the level of RC in the diet. The study showed that RC gave the best growth performance at 6% inclusion in Clarias gariepinus fingerlings diet. The control diet had the highest feed cost per kg of #9.44 and the lowest was recorded for fish fed 24%RC. Fish fed 24% RC (diet 5) had the best feed cost per kg (#4.88), least cost of weight gain per fish (N1.96) and cost of feed consumed per fish( N0.038).
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  • Olaniyi, Christianah. 2010. Economic Evaluation, Growth Performance and Nutrient Utilization of Rumen Content in the Nutrition of African Catfish (Clarias Gariepinus) Burchell, 1822. 10 pages. In: Proceedings of the Fifteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 13-16, 2010, Montpellier, France: Economics of Fish Resources and Aquatic Ecosystems: Balancing Uses, Balancing Costs. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2010.
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  • US National Oceanic and Atmospheric Administration (NOAA) Fisheries Division, Agence Française de Développement, Ministère de l’Enseignement Supérieur et de la Recherche, Ministère de L’Alimentation de L’Agriculture et de la Pêche, Ministère de l’Énergie, du Développement Durable et de la Mer, La Région Languedoc Rouslilon, Département Hérault, Montpellier Agglomèration, The Department of Fisheries and Oceans, Canada, and AquaFish Collaborative Research Support Program (CRSP).
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