i have a couple small females, 13 " and only after a short run they wheeze, rattle something awful, can hear em coming way before i see em its so loud.
i suspected heart worms but a trip to vet and worm free , he said he didnt know why they breathe so heavy. i have over 10 head and all get same feed and run a lot and these are the only 2 that does this. temps are cool yet and i nite run also. any ideas ?
breathing lungs...
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