In times of summer temperatures, how often do you walk to your calf housing to see if your calves are not too hot?
Heat stress in calves increases dehydration, reduces feed intake and lowers the immune system.
There is a good chance that the nutrients (especially energy) absorbed during heat stress will be used to remove heat, instead of using them for growth.
In the short term, this can have effects on daily growth and resistance to disease. In the long term this can have consequences for body development and age at first calving.
IMPORTANT VISIBLE SIGNS OF HEAT STRESS IN CALVES:
• Reduced movement
• Faster breathing
• Panting with open mouth
• Reduced feed intake
• Increased water consumption