Animal Care in Summer Weather
Libby Eiholzer, Bilingual Dairy
Northwest New York Dairy, Livestock & Field Crops
September 15, 2014

Share this article with your employees so that everyone can help keeps cows and calves comfortable and healthy this summer!
The hot summer months can do a lot worse than make workers irritable and uncomfortable. Heat negatively affects cow performance in many ways. It can reduce fertility as well as decrease feed intake and milk production. Dairy cows can begin to feel mild heat stress when temperatures reach only 65 degrees, but relative humidity also plays a role. When humidity is higher, cows begin to experience heat stress at a lower temperature. Signs of heat stress include increased respiration and rectal temperature, panting, foaming at the mouth and bunching.
What can you do?
Make sure the cows have enough water. Keep waterers clean and full of fresh water so that cows are encouraged to drink more.
Keep an eye on cow cooling devices? fans and sprinklers should be in good working condition in order to maximize cow cooling.
Keep stalls bedded and clean to entice cows to lie down and not bunch in the allies.
Try to leave cows alone during the hottest times of the day. If possible, complete herd work in the early morning when it is still cool.
Extra precautions need to be taken with calves as well.
Chill colostrum quickly using an ice bath or bottles of ice in the colostrum, then refrigerate or freeze. Hot weather allows pathogens to reproduce quickly, so even a short time at room temperature can drastically reduce colostrum quality.
Monitor grain pails closely and replace grain before it becomes soggy, moldy, or otherwise undesirable to calves. The fats in calf grains can go bad very quickly when it?s hot, leading to a rancid smell that turns calves off from it.
Calves, too, need to have fresh water provided at all times. Scouring calves or calves off feed should receive electrolytes to prevent dehydration.
Don?t skimp on cleanliness! Bedding should be kept fresh and dry to control flies. Rinse and wash feeding equipment that comes into contact with milk in order to prevent the buildup of biofilms- and bacteria.
For more information on calf care during summer months, visit the Calf Facts & Calving Ease pages at www.atticacows.com.
Upcoming Events
On-Farm Research Network
March 17, 2025
Avon, NY
The Cornell Cooperative Extension NWNY Program and Cornell Nutrient Management Spear Program (NMSP) are hosting a one-day event bringing together farmers, industry professionals, and researchers to explore the power of on-farm research and how to get involved.
Transition Calf Workshop
March 18, 2025 : Transition Calf Program
Strykersville, NY
Are transition calves a bottleneck in your heifer rearing program? Want to upskill your employees to improve the calf transition period? Join regional dairy specialists and PRO-Dairy for this comprehensive, hands-on workshop!
Colostrum and Calf Technologies
March 18, 2025 : Colostrum and Calf Technologies
Pavilion, NY
Join us for a dinner meeting with Penn State University's renowned calf specialist, Dr. Melissa Cantor, on new applied research on extended colostrum feeding and calf-hood technology use.
Announcements
Follow us on Instagram
See photos and reels of our most recent events and programs!Join us on Facebook!
Follow us on Facebook to get up to date posts about events, workshops and everything NWNY!Add us on LinkedIn!
Connect with us on LinkedIn to get more information about upcoming workshops and programs!