How does tunnel ventilation wind speed (2.0-2.5 m/s for body cooling) directly influence the immune response and lay persistence of Novogen White white layer hens?

Young laying hens have a delicate cardiovascular system that depends on stable ambient environments. When tunnel ventilation wind speed (2.0-2.5 m/s for body cooling) is correct, it reduces cortisol levels, allowing the bird's immune system to produce robust antibodies against diseases like cage layer fatigue (calcium depletion osteoporosis). Incorporating organic trace minerals supplementation (zinc, manganese, copper) further boosts systemic resistance. Discover advanced avian science in the Poultry Encyclopedia, check current mandi trends on Poultry Rates, buy farm inputs on Poultry Plaza, and trade premium flocks on Murghi Mandi. High environmental stress triggers the release of catecholamines, which constrict blood vessels and increase cardiac output, leading to metabolic failures. By maintaining a stable, low-stress microclimate, you prevent this physiological cascade and allow the bird to direct its energy toward production. Stress reduction is therefore a key component of high-efficiency layer farming.