recurrent 'colic'/tying up - strongyles?? any ideas?
I'm trying to wrap my head around the whole encysted strongyle issue. Wondering if it could contribute to recurrent colics. Mare had a bout of mini-'colics' in December/January and we've just dealt with another one this past weekend.
Horse is on a regular quarterly deworming program (boarded out with a knowledgable BO) and does not look wormy. Easy keeper, glossy and looks to be the picture of good health. We have had her for two years and she just started doing this in the past 6 months. Same barn, same schedule, same turnout buddies. The last dewormer was barn wide in January (after the 'colics') and it was Eqvalan Gold (1.55% w/w ivermectin and 7.75% w/w praziquantel).
I say 'colic' because each time the vet has come out she has done a rectal (fine), checked gut sounds (fine), tubed her (just in case), gave some Banamine and the horse is fine within a couple of hours. Poops are fine during all of these 'colic' episodes.
Most of these 'colics' were after a stressful period of exercise (i.e. day 2 of clinic/after a harder lesson). We pulled blood to check for tying up (fine), did a lyme screen (fine), did the EPSM genetic test (fine). We trialed ulcer meds at least three time (no difference - fine). Two of the 'colics' were at about 5 pm - horse out all day, came in to eat lunch at 4, looked green and didn't want carrots shortly after.
The 'colic' symptoms are the same - depressed and lethargic looking, pawing the ground, lying down in the stall (but not thrashing/rolling), nipping at flanks. Last weekend she would cramp across her lumbar/hind legs sporadically as we walked her, after the vet came and did her protocol (including Banamine) she was fine and went back to her food.
To say I am frustrated is an understatement. :eek:
Just thinking through the timing (December and April), I'm wondering if encysted strongyles would cause some of these issues? We're in Ontario so it has just now warmed up.
Vet is stumped. I'm stumped. BO is stumped. Any suggestions/ideas would be lovely... I am really concerned that if we don't get to the bottom of this we can get ourselves into more serious trouble.