(By the way, ivermectin is a standard wormer.) It kills the ones of course that are not encysted as it has zero power to affect the ones that are encysted. The bottom line is that when a horse who has a lot of encysted cyathostomes is wormed with a standard wormer (that is, a non-moxidectin or non-fenbendazole wormer), the standard wormer kills the small strongyles living in the lumen. Larval Cyathostomosis is often misdiagnosed as gastric ulcers or as eosinophilic enteritis, or even just as “colic.” Unless vets are up with reading the latest academic veterinary articles or attending the latest veterinary conferences, they may be completely unaware of this. In milder cases, the horse will show colic, loss of appetite, and diarrhea. The condition this causes is known as Larval Cyathostomosis and in the acute cases is usually fatal. As they burst through the lining of the intestine, they bring with them their highly toxic accumulated waste products. The reason is that the dewormer kills the non encysted worms, so the horse’s body gives the encysted ones the signal to emerge in large numbers to replace them.
You may think this is good, but in fact it is dangerous if a horse has a large burden of encysted small strongyles.
#Panacur for horses plus
No deworming product except moxidectin (Equest Plus Tape) or fenbendazole (such as Panacur 100 or WSD Fenbendazole) can touch these encysted worms at all – ivermectin cannot do anything to them at all it is 100% ineffective.ĭeworming with a product which is not moxidectin or fenbendazole kills the non encysted small strongyles and they pass out of the horse. They can stay encysted anything from a few months to a few years. As little as 6 hours after the horse eats them, they encyst in the intestinal walls. This worm requires an entirely different type of treatment than the large strongyle.įirst, let us consider what they do. The killer worm these days is the small strongyle ( cyathostome ). This means that once an effective wormer is given on one occasion, a whole Pre-Patent Period needs to run its course before eggs can infect the environment. A Pre-Patent Period means the time between infection and the first appearance of eggs. The large strongyle has a long Pre- Patent Period of at least 6 months. Now that we have ivermectin this worm is no longer a problem, as ivermectin kills both immature and adult stages of this worm. In those days, the dangerous horse worm was the large strongyle ( Strongylus vulgaris) and so worming treatment targeted this worm. The net in general, “horse experts” and even some veterinary surgeons recommend deworming based on 1960s and 1970s conditions. Now please bear with me while I give you the background on this condition, as it is very important in the case of a rescue horse (or any horse with a large quantity of these type of worms). The use of the wrong type of a wormer in a horse which is badly infested with certain type of worm leads to a usually fatal condition known as Larval Cyathostomosis.
#Panacur for horses full version
The full version of this book is available for download at Bear in mind this is an overview, and for full information, please read Dr Nyland’s book What to Worm Your Horse With, Made Easy This is an extract from Dr Nyland’s book of the chapter on worming. This concise and to the point how-to book also takes the reader through several pictorial case histories. Whatever their circumstances, rescue horses need worming and feed, and these two very things, if not carried out correctly, may harm or even kill the horse. Some may be injured, or have wounds, while others may “only” be skinny. Your fat, shiny, “healthy” horse can also die from an overburden of worms with incorrect worming. Note: This information doesn’t only apply to Rescue Horses. When using Panacur ® (fenbendazole) Paste 10% concomitantly with trichlorfon, refer to the manufacturer�s labels for use and cautions for trichlorfon.How to Care for a Rescue Horse: Australian Version IMPORTANT SAFETY INFORMATION: Do not use in horses intended for human consumption.
For foals and weanlings (less than 18 months of age) where ascarids are a common problem, the recommended dose is 4.6 mg/lb (10 mg/kg) one syringe will deworm a 550 lb horse.įor control of encysted early third stage (hypobiotic), late third stage and fourth stage cyathostome larvae, and fourth stage larvae of Strongylus vulgaris, the recommended dose is 4.6 mg/lb (10 mg/kg) daily for 5 consecutive days administer one syringe for each 550 lbs body weight per day.Ĭonsult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. One syringe will deworm a 1,100 lb horse. Panacur ®ï¿½(fenbendazole) Paste 10% is administered orally at a rate of 2.3 mg/lb (5mg/kg) for the control of large strongyles, small strongyles, and pinworms.
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