Browsing by Author "Okorie, A.U."
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Item The Effect of Varying Calcium and Phosphorus Levels on the Performance of Starting Broiler Chicks in the Tropics(1982) Anungwa, F.O.I.; Okorie, A.U.; Njoku, E.O.The important role of calcium and/ or phosphorus in poultry production has been demonstrated by a number of researchers (see for example Lillie et al., 1964, Mehring Jr. and Titus, 1964, Ademosun and Kalango, 1973, Waldroup et al. 1974, Dilworth et al., 1980, Hamilton and Cipera, 1981). Levels of total calcium and total phosphorus ranging from 0.5-1.07 percentage and 0.45-0.7 percentage respectively have been proposed (Simco and Stephenson, 1961, Edwards et al., 1963, and Lilie et al., 1964). The majority of the work so far reported in connection with the calcium and phosphorus requirements of broiler, chicks has been carried out in the temperate region. The work reported here was undertaken to investigate the effect of calcium and phosphorus levels and their ratio’s on feed intake, live weight gains, feed conversion ratio and serum calcium and phosphorus of broiler birds reared in tropical Nigeria.Item Growth Performance, Nutrient Digestibility. And(1987) Okorie, A.U.; Anungwa, F.O.I.; Kamalu, T.N.Growth performance, nutrient digestibility, total faecal bacterial count (TBC), cellulose activity (CEA) as mg glucose released dry faeces/30 min, total faecal volatile fatty acid (VFA) concentration and pH were determined using two groups of five littermate pairs of pigs (initial weight, 8.0-12.0 kg) fed one of two 18.6 per cent crude protein diets (A and B) containing crude fibre levels of 6.2 (control) and 13.6 per cent (high fibre), respectively, over a 42-day period. Faecal samples were collected from all pigs on day 0, 7, 14, 21, 35, and 42. Pigs fed the high fibre diet consumed significantly (P~O.01) more feed and more digestible energy, had inferior (P~O.OO feed conversion ratios and lessItem Performance of Broiler Chicks Fed Different Levels of Sun-Dried Yam Peels with and(1986) Anungwa, F.O.I.; Okorie, A.U.Presently one of the biggest impediments to livestock production in general, and poultry Production in particular, in the developing countries of the world is the high cost of feed Ingredients. Consequently the conventional energy and protein sources have become less available for animal feeding in these countries due to their high cost, resulting invariably from low National production levels and in some cases from the ban on their importation as was the case for maize in Nigeria recently. There has, therefore, been an intensive search for cheap energy and protein substitutes for cereal grains and conventional protein supplementsItem Preliminary Findings on the Evaluation of Dried Poultry Droppings Versus Groundnut-Cake as Supplementary Protein Source for Broiler Chicks(1979) Okorie, A.U.; Osakwe, I.I.; University of Nigeria, Nsukka, NigeriaPoultry waste (Without-bedding and feathers) collected every two days from a caged-layer unit was sun-dried in large flat metal pans during the hot months of November to December. The two-day routine collection was necessary to avoid loss of soluble nutrients particularly nitrogen and potassium (Blair, 1975).
