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...Iaea tecdoc improving animal productivity by supplementary feeding of multinutrient blocks controlling internal parasites and enhancing utilization alternate feed resources apublication prepared under the framework an rca project with technical support joint fao programme nuclear techniques in food agriculture december originating section this publication was production health division international atomic energy agency wagramer strasse p o box a vienna austria multi nutrient isbn issn printed foreword major constraint to livestock developing countries is scarcity fluctuating quantity quality year round supply providing adequate good raise maintain their will continue be challenge agricultural scientists policy makers all over world increase population rapid growth economies lead enormous demand for products large part which from future hopes millions safeguarding security depend on enhanced efficient alternative that cannot used as humans addition area land degraded barren or marginal...