Valus of soybean meal as the only protein concentrate in different formulations for pactical poltry feeding

Three applied experiments were conducted to study the extent to which the birds (broilers or layers) are inneed for animal protein. The effect of all plant pro-tein-diet or FM supplementation was tested in relation to the bird performance. weight!~in and egg production. 2- A fourth experiment was planned to test the SEM qualityavailable in the market. 3- The first experiment (two trials) was planned to be pre- liminary for the others and intended to trace any effectfor the whole plant protein diet (C/SEM) on chick and if it is possible to compensate for FM absence. Twelve of one day-old broiler chicks (commercial Arbor Acre) were used to experiment;three levels of fish meal(7, 4 & O%).for a period extended to less than two weeks. The SEM failed to satisfy the needs for growth and toprotect the chicks against nutritional disorder, where leg disorder was appeared-in some chicks at the age of 5days. On the ground that SBM failed to satisfy the needs forgrowth and leg disorders resulted in the first few days a second trial was performed with increasing the amount ofvitamins & minerals ; calcium; methionine & manganese