I have put off asking this question as it sounds somewhat ridiculous and doesn't all poop stink?!?!?!? BUT.....I noticed last week one of the mares at work has extremely foul smelling manure. It smells like dog ****. I had not really though no more of it until at work yesterday when I had her in the wash bay grooming her and she pooped and the odor was so overpowering! The consistency is normal (round, solid and brown). All 10 horses are fed Purina Senior, no supplements. They get 2 alfalfa cubes 2x daily, 24/7 pasture turnout, free choice coastal bermuda hay. No meds. She is a VERY nervous horse and we have just starting pulling her out and riding her the last 2 weeks. She is 17 years old. Up to date on al worming, vaccinations, etc. Anyone else ever noticed this in a horse? Any ideas? Thanksin advance!