Effects of Dietary Replacement of Maize with Sweet Potato Peel in the Diet of African Catfish Clarias gariepinus (Burchell, 1822)

Authors

  • Abdurrazzaq Ibrahim Abdullahi Department of Fisheries, University of Maiduguri, Maiduguri, 600004, Nigeria
  • Bolanle Silas Bawa Department of Fisheries and Aquaculture, Ahmadu Bello University, Zaria, 810107, Nigeria
  • Shuaibu A Abdullahi Department of Biology, Ahmadu Bello University, Zaria, 810107, Nigeria

DOI:

https://doi.org/10.30564/jfsr.v4i2.4705

Abstract

This study was carried out to evaluate the effects of dietary replacement of maize with sweet potato peel in the diet of Clarias gariepinus juveniles. The levels of the SPP inclusion in the experimental diets were 0%, 25%, 50%, 75% and 100%. All the diets were iso-nitrogenous. One hundred and fifty (150) C. gariepinus juveniles (33 g ~ 35 g) were randomly distributed to five treatments with three replicates each and 5% of their body weight for 12 weeks. Fish carcass proximate compositions analyzed before and after feeding with the experimental diets shows that CP and EE differed significantly (p<0.05) among the experimental fish and the control, except the percentage CP of the fish fed SPP0% and SPP50% in which there was no significant difference (p>0.05). Highest MWG of 207.70±25.95 g was obtained in the fish fed SPP100% followed by 191.30±16.15 g obtained in the fish fed SPP75%. The least MWG of 149.83±16.01 g was recorded in fish fed SPP25%. The highest FCR of 3.61±0.45 g was recorded in the fish fed SPP100%. A steady decrease in FCR was observed with decreasing inclusion levels of SPP meal. However, higher FW, FL, SGR and PER were observed in the experimental fish as from 50% inclusion levels of the SPP. The cost of feed per kg was reduced and the NP and WG increased with increasing levels of SPP and the profitability was enhanced at 100% SPP inclusion level. The results revealed that C. gariepinus juvenile could tolerate up to 50%, 75% and 100% inclusion levels of SPP. The best growth performance was recorded in the fish fed SPP100%, therefore, sweet potato peel can replace maize in the diet of C. gariepinus without any inauspicious effect on the growth performance and nutrient utilization.

Keywords:

Sweet potato peel; Clarias gariepinus; Nutrient utilization; Growth performance

References

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Vol. 4 , Iss. 2 (September 2022)

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Copyright © 2022 Abdurrazzaq Ibrahim Abdullahi, Bolanle Silas Bawa, Shuaibu A Abdullahi

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