الفهرس | Only 14 pages are availabe for public view |
Abstract The animal feed base in Egypt suffers insufficiency of feed in general and specifically ingredients included in concentrate feed mixtures. Cotton seed meal seems to be the back bone of concentrate feed industry, where it is considered the main source of protein in concentrate mixtures. Concequently, cotton seed meal is considered the main limiting factor for concentrate production in the country. The annual concentrate feed mixtures production ranged between 1.2 to 1.5 million ton during the last 5 years. This amount of concentrate is distributed by the government for cattle under insurance policy and buffalo. At the same time, there are about 2,5 million heads of sheep that are mainly fed on berseem during winter time. summer feeding depends mainly on poor quality field-crop-residues which are not enough to cover the requirements of animals neither in protein nor in energy. reflects a real loss in their production performance. In previous work, which was carried out in the same department (El-Ashry-et al. 1987}, it has been that dry. poultry wastes (DPW) are very good nitrogen source in ruminant rations and that DPW can successfully be used in maintenance ration for mature sheep. In the study, the objectives were to investigate the possibility of including graded levels of DPW in rations for newly weaned male lambs. The effect of such nutritional treatments on growth performance, efficiency and reproductive performance after sexual maturity were also studied. |