Minimor
Well-Known Member
US or Canada, it really is no different. I know people here who only deworm 2x a year, and I know local vets who say that is not enough. We deworm 3 to 4 times per year--did do it every 8 weeks at one time, but not any more. 3x a year means I will probably see worms in the manure after deworming; 4x a year and I don't see them. We do not do fecals--probably should, but we don't. I've had vets here (Manitoba) warn me about resistance to ivermectin, particularly in foals, but so far that has not been an issue for us. Ivermectin is still my preferred dewormer when it comes to foals and yearlings--it is still very effective against roundworms (better than the strongid recommended by the vets)--and that may be because we haven't overused it by deworming every 8 weeks with ivermectin.
As far as horses looking "wormy"--I've seen horses that were fat and shiny and those horses still had a huge load of worms--you wouldn't have known it to look at them, but when they were dewormed they dumped a huge load of worms in the manure 24 hours later. Young horses might start looking rough if they have a heavy worm load, mature horses are less likely to as long as they are well fed. Young horses with a heavy infestation of roundworms will start coughing... mature horses that are thin/rough may be wormy, but the biggest issue in my experience is usually lack of feed, or bad teeth. If teeth are good and they have sufficient feed (and good quality feed) they will hide a huge worm load.
Two flakes of feed per day may well be enough for some horses, depending on size of horse and quality of hay. I have minis 33" and taller, and most of them would be very hungry if all they got were 2 flakes of hay per day. Mine get more like 2 flakes 2x per day and that is a good grass or grass/alfalfa mix
As far as horses looking "wormy"--I've seen horses that were fat and shiny and those horses still had a huge load of worms--you wouldn't have known it to look at them, but when they were dewormed they dumped a huge load of worms in the manure 24 hours later. Young horses might start looking rough if they have a heavy worm load, mature horses are less likely to as long as they are well fed. Young horses with a heavy infestation of roundworms will start coughing... mature horses that are thin/rough may be wormy, but the biggest issue in my experience is usually lack of feed, or bad teeth. If teeth are good and they have sufficient feed (and good quality feed) they will hide a huge worm load.
Two flakes of feed per day may well be enough for some horses, depending on size of horse and quality of hay. I have minis 33" and taller, and most of them would be very hungry if all they got were 2 flakes of hay per day. Mine get more like 2 flakes 2x per day and that is a good grass or grass/alfalfa mix