الفهرس 
Egg productionOnly 14 pages are availabe for public view
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Abstract
Five experiments were conducted a t the Experimental Station of Sakha Poultry Farm, Kafr El-Sheikh , Animal Procixtior , Research I n s t i t u t e , Ministry of Agriculture. The first experiment t o evaluate the available amino acids (A.A.A. ) and metabolizable eneygy (W3) of rapeseed zeal. The second expe2imect was designed t o give some information about t h e e f f e c t of feeding d i f f e r e n t l e v e l s of rapeseed meal on laying hen performance. The t h i r d experiment was c a r r i e d out t o stdyt h e e f f e c t of feeding di f f e r - ent l e v e l s of rapeseed meal on histopathological examinat i o n s of thyroid and l i v e r s of laying hens . The fourth experiment concerned with the e f f e c t of feeding different l e v e l s of rapeseed meal on b r o i l e r chickens . The f i f t h experiment was carried out to study the effect of feeding d i f f e r e n t l e v e l s of rapeseed meal cn his topathological examinations of thyroid and l i v e r s of broiler chickens.