الفهرس 
ProbioticsOnly 14 pages are availabe for public view
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Abstract
In view of using antibiotics excessively agent known protection (Preservation) and remedy in the poultry locates which leads to economic loss, cause highly price for antibiotics, besides its dangerous carryover via poultry meat into human beings causing human liver carcinoma. For these reasons, the experiments was designed aiming to study the possibility of removing or alleviation of antibiotics, namely by adding some biological feed additives and selenium supplementations. This experiment was conducted to investigate the effects of different sources of some biological feed additives and selenium
supplementation in the starter and finisher diets and also combination on the growth performance, feed conversion, some carcass traits, some blood components, performance index and the economical efficiency.