Heat stress is a very serious situation for chickens and can quickly go from serious to deadly. Even when pulling out all the stops to keep our chickens safe in the heat, according to Gail Damerow in The Chicken Encyclopedia, "[d]uring long periods of extreme heat, hens stop laying and all chickens suffer stress. When temperatures reach 104° F (40° C) or above, chickens can't lose excess heat fast enough to maintain a proper body temperature and may die."
Among the many ways to combat heat stress that I covered in my blog post Beat the Heat, is supplementing their drinking water with electrolytes. I recommend keeping vitamins and electrolytes handy in a well stocked chicken first aid kit, but in an emergency, it is possible to make electrolytes with ingredients commonly found in most homes.
Lucy has her wings spread away from her body in an effort to allow air to circulate closer to her body.
The orange bucket is kept full of cool water in case of emergency.
The mister was a bargain at less than ten dollars and keeps the surrounding area cool.
In temperatures over 90° F, keep a bucket or tub full of cool, water (not cold) near the flock at all times. If anyone begins to look overheated, panting, wings away from its sides, droopy, lethargic or pale in the wattles and comb, IMMEDIATELY submerge in the cool water up to its neck to bring its body temperature down. This simple measure can be lifesaving. Even if chickens are not in danger, this can be a welcome relief to chickens that would not voluntarily wade into water.
- panting or labored breathing
- pale comb and/or wattles
- spreading wings away from body
HOMEMADE ELECTROLYTE SOLUTION
1/2 teaspoon potassium chloride (Morton salt substitute) (If you don't have it, omit it)
1 teaspoon sodium bicarbonate (baking soda)
1 teaspoon sodium chloride (table salt)
1 tablespoon sucrose (sugar)
1 gallon water
ADVISORY: Electrolytes should not be given to healthy chickens who are not suffering from heat stress or dehydration.
While we're on the topic of heat advisories, it bears repeating that vinegar should NOT be added to drinking water during times of high heat. According to Dr. Mike Petrik, DVM, MSc, a poultry veterinarian,
"Acidified water affects laying hens by making the calcium in her feed a little less digestible (based on chemistry....calcium is a positive ion, and dissociates better in a more alkaline environment). Professional farmers regularly add baking soda to their feed when heat stress is expected....this maintains egg shell quality when hens' feed consumption drops due to the heat."
In summary, during high heat conditions, baking soda facilitates calcium absorption while vinegar inhibits it. SKIP the vinegar in the heat, opting for an electrolyte solution instead.