VPE 511: Environment and Environmental Hygiene (2+1)

INTRODUCTION - VENTILATION

• Ventilation in animal houses required for removing stale air and to replace it by fresh air. Very little or too much of it is injurious to the health of animals and their attendants.
• The stagnant air becomes warmer and more humid in improperly ventilated animal houses. Condensation of water on the surface, bedding and floor makes them wet and animals become uncomfortable.
• It eventually leads to concentration of animals at places causing accumulation of excreta and expired air in pockets. All these factors are also lead to concentration of dust, particulate matter, ammonia, other gases and pathogenic micro-organisms carried by animals facilitating exacerbation of respiratory and enteric diseases, mastitis and other illnesses.