As the weather turns your horse, just like you, is more susceptible to infection. If you think he's come down with a cold, here's a quick guide to help you assess whether his vital signs are healthy or not.
Slightly irregular vitals indicate he may be fighting something; highly irregular signs mean get him to the vet!
Vital signs for a horse at rest:
Pulse Rate - about 30 to 40 beats per minute
Respiration Rate - between 6 and 20 breaths per minute
Rectal Temperature - between 99.5 and 101.5 ˚F
Capillary Refill Time - (press the gums) 2 seconds or less
Learn how to assess his vital signs by visiting Horse&Rider.com.