My horses have been given some grass by the land owner, and two of them (mare and foal) are fine, but my gelding has a horrible cough. The grass hasnt been grazed in years and chickens have been roaming it. Do you think he's allergic to the chickens? A horse next to them also has a cough, but of its just a cold surely my foal would of got it by now being 4months old?
Any help greatly appreciated, thankyou :)