COMPARATIVE EVALUATION OF THE BLOOD MINERAL STATUS OF WEST AFRICAN DWARF SHEEP AND GOATS MANAGED UNDER EXTENSIVE AND SEMI-INTENSIVE SYSTEMS OF MANAGEMENT

Abstract

A total of eighty (80) animals comprising of forty (40) each of West African  Dwarf sheep and goats, averagely weighting 25.33 ± 2.50kg and 15.13 ± 1.0kg, respectively were used in an experiment at the Small Ruminant Unit of the Teaching and Research Farms of the University of Agriculture, Abeokuta and Olugbo village via Odeda in Odeda Local Government area of Ogun State. The forty animals from each species were divided into two groups of twenty (20) animals each and were randomly selected and managed under extensive system (ES)and semi intensive system (SIS0. 10ml) of blood sample from individual animal was drawn from each animal and analyzed for their mineral concentration of Ca, P, K, Na, Cu, Fe, Zn and Mn. The main effect of the system of management significantly influenced the concentration of both major and trace minerals of sheep and goats except P and Cu. Sheep and goats under ES had higher (P < 0.05) concentration of Ca, Mg, Fe, Zn and Mn. The concentrations of K and Na were higher (P < 0.05) in sheep and goats under SIS. No significant (P > 0.05) interaction effect on Ca and P concentration was 0bserved, although goats raised under both systems exhibited higher Ca and P concentrations than sheep. However, significant interactions (P < 0.05) of animal special and management systems was observed in the plasma concentrations of Mg, K, Na, Fe, Cu, Zn and Mn with no noticeable trend being following. It was concluded that irrespective of the animal species (Sheep or goats) and management systems, Ca and P supplementation is necessary to ensure optimum productivity of the animals