Your Horse (UK) - - Horse Care -

COB CROSS CALLIE was six years old when Sue Hayes bought her. Sue says it wasn’t long be­fore Callie de­vel­oped symp­toms that would be­come a life­long bat­tle to man­age. “The win­ter af­ter I bought Callie, she caught a bad virus from a new horse brought onto the yard. Even though she got over the virus, she be­came sen­si­tive to the barn en­vi­ron­ment and couldn’t be kept in the vicin­ity of other horses on straw or be­ing fed dry hay. “I found some­where she could live out­side with a field shel­ter. She was fine for a cou­ple of months but to­wards sum­mer she showed signs of SPAOPD. In win­ter, her symp­toms dis­ap­peared. “The fol­low­ing year, I moved her to a dif­fer­ent pas­ture and her symp­toms re­turned in the mid­dle of May, but this time it was quite se­vere. She was scoped and our vet was keen to get a chest x-ray done as he was con­vinced that there was an­other rea­son for its sever­ity. The chest x-ray showed lung scar­ring, but noth­ing more sin­is­ter. “We de­cided that we should start her on oral steroids (pred­nisolone) af­ter a very un­suc­cess­ful at­tempt to ad­min­is­ter in­halers via an aero­mask. “Callie is 19 this year and has been on oral steroids from the age of eight. Her symp­toms start in mid-May and I usu­ally start her on 60x5mg pred­nisolone a day, go­ing up in in­cre­ments of 10 to 100 per day by the end of May. “From au­tumn, she’s symp­tom free. Even though I can’t ride her at all in spring and sum­mer, we go hack­ing in the colder months and she could go for miles – you’d never know there was a prob­lem.”

Keep­ing horses in a dust-free en­vi­ron­ment on hot days can help Callie and Sue make the most of their hack­ing in the au­tumn

Sum­mer asthma seems to be weather de­pen­dent and is worse on hot days

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