Poultry farming is an emerging industry in world. But now a day it faces many problems. Mycoplasmosis is one of them. It causes a significant thrashing to the poultry industry. By studying this book researchers will easily known about mycoplasmosis problem in broiler farming. The efficacy of tylosin tartrate and tiamulin hydrogen fumarate against mycoplasmosis and their effects on body weight gain of the treated broiler is discussed in this book. This book will also help to researchers who work on pharmacological field.