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ISSN: 2375-3773

International Journal of Agricultural Sciences and Natural Resources

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Assessment of the Optimal Inclusion Level of Dietary Zinc Requirement for Catfish Clarias gariepinus Production

International Journal of Agricultural Sciences and Natural Resources
Vol.5 , No. 1, Publication Date: Feb. 12, 2018, Page: 6-11

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Authors

[1]	Umma Samuel Bem, Department of Fisheries and Aquaculture, Federal University Wukari, Wukari, Nigeria.
[2]	Doro-Adeyemi Omoniyi, Nigeria Institute for Oceanography and Marine Research (NIOMR), Lagos, Nigeria.
[3]	Oshimagye Michael Ibagye, Department of Fisheries and Aquaculture, Federal University Wukari, Wukari, Nigeria.
[4]	Igbani Flourizel, Department of Fisheries and Aquaculture, Federal University Wukari, Wukari, Nigeria.
[5]	Uruku Ndekimbe Mamndeyati, Department of Fisheries and Aquaculture, Federal University Wukari, Wukari, Nigeria.
[6]	Dauda Abdullahi Kida, Department of Fisheries and Aquaculture, Federal University Wukari, Wukari, Nigeria.

Abstract

Aquaculture requires adequate food in the form of artificial diet to furnish fish with nutrients for optimal growth. Trace mineral are recognized for their important roles in presenting proteins bioavailable in diets. Hence, zinc offers some solutions against the many inhibitory actions of plant base materials; however, its deficiency perturbs the general wellbeing of the fish. The study attempts to ascertain the required optimum level of dietary zinc essential for juvenile African catfish (Clarias gariepinus) growth and health performance. Fish were fed practical diet with graded levels of zinc at 0 to 27.33 mg Zn kg^-1 respectively. Broken-line quadratic model showed the optimum dietary supplementation of zinc in fish growth performance at 13.67 mg Zn kg^-1. Mean weight gain showed a significant difference at P<0.05, with the least value in the control diet (41.08±0.34) and highest value in diet 2 (52.53±0.15). SGR, ADG, PER and FCR had significant values. The serum profile indicated significant variations in the Total Protein, AST, ALT, Creatinine and Ca²⁺ while Urea showed no significant effect in all the diets as recorded in Table 5. The investigation indicates optimum growth response. Therefore, emphasis should be placed on supplementing adequate zinc minerals in diets to reduce anti-nutritional factors and boost protein bioavailability.

Keywords

Clarias gariepinus, Dietary Zinc, Optimal Growth, Plant Base Diet

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