Evaluation of dried poultry manure and urea molasses mixture as replacers to concentrate feed mixture in sheep rations 2. palatability digestibility and nitrogen utilization

Gihad, E.A.; Shalaby, A.S.; Allam, S.M.; Mehrez, A.Z.; Abd-El-Gawad, A.M.

Ain Shams University Faculty of Agriculture Research Bulletin 1348: 1-14


Accession: 005397855

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The nutritive value of dried poultry manure and urea as N supplements for sheep was evaluated. Four Rahmany rams were used in metabolism trials for each treatment. Four isonitrogenous experimental rations were used. Wheat straw was used as a roughage in all experimental rations. The concentrate feed mixture (CFM) was used as a sole N supplement in the 1st ration (control). Dried poultry manure (DPM) replaced 50 and 75% of CFM nitrogen in the 2nd and 3rd rations, respectively. Urea-molasses mixture (8% urea) replaced 50% of CFM N in the 4th ration. The UM ration proved better nutrient digestibilities, which improved feeding value. The nutritive value results of DPM supplemented rations were slightly lower than that of CFM ration. Increasing the DPM level in the ration decreased their nutritive value. Digestibilities of DPM nutrients were estimated by the indirect method. N balance was positive for all experimental rations. DPM and UM can be used as reliable protein supplements for feeding ruminants especially for their low prices compared with CFM.