Abstract
Several samples of poultry feeds, feed components, anima! fodders were analysed for autrienta such as ash, protein, fat and trace elements, Fe, Cu, Mn and Zn, Among the feeds, blood meal contained the highest amount of protein (80.59%) and the lowest was in bone meat (20.95%), Similarly, the lowest amount of fat was in bone meal (0,53°/) and the highest in meat meal (14.13%). Concentrations of essential trace e/ements in feed components widely varied and were, however, adequate jo the poultry rations studied, Among the local fodders berseern had the highest values for protein (26.31%), fat (2.18%) and ash (15.73%), Fodder bajra was generally poor in these nutrients. Local fodders differed markedly in the concentrations of Fe, Cu, Mn and Zn. Among the imported and Jocal fodders, Hasavi-rushad and berseem respective- ly contained higher amounts of Fe, Cu, Ma and Zn.

Z.M. Khalid. (1988) Trace elements and other essential nutrients of biological materials, , Volume 25, Issue 2.
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