The most updated information on avian influenza with a practical approach. The authors review the aetiology, clinical signs, diagnosis, and control of avian influenza viruses. It also includes numerous graphic resources to make the contents more understandable to readers.
Infectious bronchitis is an acute and highly contagious respiratory disease of chickens characterized by respiratory signs comprising gasping, coughing, sneezing, tracheal rales and nasal discharge. In addition, severe respiratory distress may occur in young chickens. Respiratory distress, decrease in egg production, and loss of internal egg quality and eggshell quality have been reported in layers. Some strains of the virus produce severe kidney damage and may be associated with high mortality.
This book serves as a useful tool for learning about the most common diseases of tilapia (both red and Nile) raised in intensive and semi-intensive systems. It covers both macroscopic and microscopic lesions as well as elements of production and parameters of water quality which are critical to determining the health and disease of these fish.
