Since resistance is becoming more common, fecal exams are recommended for all farms at least once a year. There is no good test for bots. A decrease in bot flies demonstrates an effective bot control program. It is a good practice to weigh the horse either with a scale or weight tape. The weight tape can be off slightly, so it is never a bad idea to add lb to the weight tape weight to cover the error.
Pharmaceutical companies have not introduced any new deworming medications anthelmintics for use in horses since , and currently, there is nothing on the horizon. Therefore it is crucial to use ivermectin as part of a comprehensive parasite control program which continually addresses both parasitic infection and reinfection.
NOTE: The content of this site is for informational purposes only and not intended to be a substitute for professional veterinarian advice, diagnosis, or treatment. Always seek the advice of your veterinarian with any questions you may have regarding the medical condition of your horse.
Zero Egg Count is an Equine Healthcare company offering diagnostic fecal count test kits and laboratory services. Our inexpensive test kits use a non-invasive collection process that is quick and easy to follow. The test results provide critical information about the general health and effectiveness of your horse's deworming program.
Close search. Home Test Kits expand. What is Ivermectin? Why do you need a chemical dewormer like ivermectin? Why is it called ivermectin? So many parasites, so little time. Which parasites does ivermectin control? How does ivermectin work? So how do I know if the ivermectin is working correctly?
A small amount of Ivermectin goes a long way It only takes a small amount 6. Product Name Mfg. Horse Health. Buy Now. Good things come in small packages. But what if my horse weighs less than lbs.? Read next. What is a fecal egg count test?
FDA requests label changes to horse dewormers to combat resistance. Leave a comment Name. Today, the focus with adult horses is on small strongyles cyathostomins and occasionally tapeworms.
For horses less than three years of age, ascarids Parascaris equorum are the biggest problems. The current recommendation is that horses should only be treated if they show signs of a heavy parasite load. Most adult horses develop immunity to parasites, some better than others. On the other hand, horses less than three years old are more susceptible to parasite infection and are at greater risk of developing parasite-related disease.
Deworming every couple of months, or rotating dewormers each time, or every other year, do not control internal parasites effectively.
Such strategies waste time and money, and they build parasite resistance. The current thinking is to limit parasite infections so horses and other equids remain healthy and that clinical illness does not develop. Here are some guidelines:. Horses, especially those over three years old, should be treated as individuals and not according to some routine.
The baseline program should be one or two yearly treatments, depending on climate and whether the patient lives with other horses. If the horse lives alone or in a stable, the frequency could be less.
Ivermectin and moxidectin are the best choices to control strongyle parasites. Pyrantel, fenbendazole and oxibendazole are good for treating ascarids in young horses. Ivermectin resistance is common in ascarids. In herd situations, fecal egg counts should be used to select moderate and high egg shedders for deworming. These are the only horses that should be treated. Not all horses need to be tested. Choosing at least six in each pasture should give a good picture of the situation.
High shedders almost certainly need more than one or two treatments a year. Moderate and high egg shedders may need a third or fourth treatment for small strongyles, ideally using moxidectin and a daily feeding of pyrantel tartrate, or a dose of moxidectin.
Any additional treatments would be given on an as-needed basis. Worm-control programs are best viewed as a yearly cycle starting when worm transmission to horses changes from negligible to probable. For example:.
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