ABSTRACT
I. Introduction ...........................................................................................................................401 A. Definition of Antimicrobial and Promicrobial Agents .............................................401 B. Background on Use of Antimicrobials .....................................................................402 C. Background on Use of Promicrobials ......................................................................404
II. Antimicrobial Agents ............................................................................................................405 A. Efficacy of Antimicrobials as Growth Promoters ....................................................405 B. Efficacy of Antimicrobials on Reproductive Efficiency...........................................409 C. Mode of Action of Antimicrobials ...........................................................................409
