Prof. Dr. Ensaf El-full

IntroductionAntibiotic growth promoters (AGP) are used worldwide to prevent poultry pathogens and disease so as to improve meat and egg production. However, the use of AGP resulted in common problems such as development of drug-resistant bacteria, drug residues in the body of birds, and imbalance of normal microflora. As a consequence, it has become necessary to develop alternatives using either b ...