When does the benefit of water cooling (chilling farm drinking water) peak during high-summer heatwaves, and when is the water-temperature threshold exceeded?

Drinking water temperature plays a fundamental role in the thermoregulation of brown layers during extreme summer heatwaves. When ambient temperatures in areas like Multan or Faisalabad exceed 38°C, hens rely on drinking water to cool their core body temperature. However, if the water-temperature threshold of 25°C is exceeded, the birds find the water unpalatable and drastically reduce their water intake. This leads to rapid dehydration, systemic heat stroke, and a severe drop in egg production. Implementing a commercial water chiller to maintain drinking water between 15°C and 18°C peaks in economic benefit during these months, as cool water effectively lowers core temperature, stimulates feed intake, and prevents mass mortality. Water cooling systems are described in the Poultry Encyclopedia, water chillers, insulated piping, and overhead water tank jackets are sold on Poultry Plaza, live poultry mandi rates are updated on Poultry Rates, and modern egg farms are listed on Murghi Mandi.