Processed Cocoyam Tuber as Carbohydrate Source in the Diet of Juvenile African Catfish (Clarias Gariepinus)
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Date
2009
Authors
Oladipupo, M. O.
Aderolu, A.Z.
Lawal, M.O.
Journal Title
Journal ISSN
Volume Title
Publisher
European Journal of Scientific Research
Abstract
One hundred and forty seven juveniles of Clarias gariepinus of mean weight 50.00g were randomly stocked at 7 juveniles per tank of dimension 52.5cm x 33.5cm x 21cm and fed six iso-nitrogenous diets containing graded level of raw and differently processed cocoyam tuber at 25% and 50% substitution levels for maize meal over a period of 56 days.
The result of the experimental treatment showed mean weight gain, relative growth rate (RGR) and the specific growth rate (SGR) had the highest values recorded for the control diet (72.3±2.67, 82.1±2.34 and 0.6±0.11), then 25% boiled cocoyam diet (54.4±3.67,73.6±2.36 and 0.49±0.13) and the least values for the 50% fermented cocoyam diet (24.0±1.32, 41.1±1.76 and 0.27±0.06). The best feed conversion ratio (FCR) andprotein efficiency ratio (PER) were recorded for the control diet while the least values were recorded for the 50% fermented diet. The boiled cocoyam when compared to the raw and fermented cocoyam at both 25% and 50% level resulted in better mean weight gain,
FCR and PER. The highest feed cost ($1.144±0.07) was recorded for the control diet and as observed cost of feed decreases with cocoyam inclusion level (0.98-1.00$). Heamoglobin(Hb) and packed cell volume (PCV) increased as a result of processing of the cocoyam meal, converse trend was observed for the lipid protein and cholesterol. All blood
parameters measured were significantly lower in the unprocessed cocoyam meal diet in comparism to the control diet.
Description
Staff publications
Keywords
Cocoyam , Maize feed utilization , Growth
Citation
Aderolu, A. Z., Lawal, M. O., and Oladipupo, M. O. (2009). Processed Cocoyam Tuber as Carbohydrate Source in the Diet of Juvenile African Catfish (Clarias gariepinus). Eur. J. Sci. Res., 35(2): 453 – 460.