The Prevalence of Strongyle Infections and Persistent Efficacy of Pyrantel Embonate, Ivermectin and Moxidectin in Turkish Horses

Strongyle infection was detected in 68% of 320 horses from 9 farms in western Turkey. Egg counts per gram of faeces (EPG) were more than 950 in half of the animals. The persistent efficacy of 3 different anthelmintics to suppress cyathostome EPG was compared on a horse farm. One group of horses was treated with moxidectin on day 0, and the 2 other groups received pyrantel embonate or ivermectin on days 0 and 70. Pyrantel embonate reduced the EPG by >90% for 2 weeks; thereafter egg counts steadily increased. Ivermectin reduced the EPG by >98% for up to 6 weeks. In contrast, one treatment with moxidectin resulted in a persistent efficacy of >98% for at least 16 weeks.

Anahtar Kelimeler:

Strongyles, horse, ivermectin, moxidectin, pyrantel embonate

The Prevalence of Strongyle Infections and Persistent Efficacy of Pyrantel Embonate, Ivermectin and Moxidectin in Turkish Horses

Keywords:

Strongyles, horse, ivermectin, moxidectin, pyrantel embonate,

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Demir, S., Tınar, R., Aydın, L., Çırak, V.Y., Ergül, R.: Bursa yöresi tektırnaklılarında dıflkı muayenesi ile saptanan helmint türleri ve yayılıflı. T. Parazitol. Derg., 1995; 19: 124-131.
Arslan, M.Ö., Umur, fi.: Kars yöresinde at ve efleklerde bulunan helmint ve Eimeria (Protozoon) türleri. T. Parazitol. Derg. 1998; 22: 180-184.
Gül, A., Değer, S., Ayaz, E.: Türkiye’nin farklı illerinde dıflkı muayenesine göre tektırnaklılarda bulunan helmint türleri ve yayılıflı. Turk. J. Vet. Anim. Sci., 2003; 27: 195-199.
Öge, H.: Dıflkı bakılarına göre atlarda helmint enfeksiyonlarının genel durumu. PhD Dissertation. Ankara University, Ankara, Turkey. 1991
Bauer, C.: Praktikum der Veterinärmedizinischen Parasitologie. Ferbersche Universitätsbuchhandlung, Giessen. 1990; 58-60.
MAFF: Manual of Veterinary Parasitological Laboratory Techniques. Reference Book 418. 3rd ed., Ministry of Agriculture, Fisheries and Food, HMSO, London. 1986.
Ackermann, H.: BiAS für Windows. Version 7.06. Epsilon, Darmstadt. 2002.
Stear, M.J., Bairden, K., Duncan, J.L., Gettingby, G., McKellar, Q.A., Murray, M., Wallace, D.S.: The distribution of faecal nematode egg counts in Scottish Blackface lambs following natural, predominantly Ostertagia circumcincta infection. Parasitology., 1995; 110: 573-581.
Bisset, S.A., Morris, C.A., McEwan, J.C., Vlassoff, A.: Breeding sheep in New Zealand that are less reliant on anthelmintics to maintain health and productivity. New Zeal. Vet. J., 2001; 49: 236-246.
Stear, M.J., Bishop, S.C., Duncan, J.L., McKellar, Q.A., Murray, M.: The repeatability of faecal egg counts, peripheral eosinophil counts, and plasma pepsinogen concentrations during deliberate infections with Ostertagia circumcincta. Int. J. Parasitol., 1995; 25: 375-380.
Lyons, E.T., Drudge, J.H., Tolliver, S.C.: Critical tests of three salts of pyrantel against internal parasites of the horse. Am. J. Vet. Res., 1974; 35: 1515-1522.
Boersema, J.H., Borgsteede, F.H., Eysker, M., Saedt, I.: The reappearance of strongyle eggs in faeces of horses treated with pyrantel embonate. Vet. Quart., 1995; 17: 18-20.
Alzieu, J.P., Bourdenx, L., Alzieu, C., Flochlay, A., Blond-Riou, F., Dorchies, P.: Persistance de l’activité d’un gel oral à 2% de moxidectine sur les strongles gastro-intestinaux de chevaux infestés naturellement. Résultats d’un essai dans Sud-Quest francais. Bull. des G.T.V., 1997; 5: 79-83.
Gülanber, A., Tüzer, E., Gargılı, A., Toparlak, M., Efil, I., Kelefl, V., Ulutafl, M.: Efficacy of moxidectin against strongylin nematodes in naturally infected horses. Tr. J. of Vet. Anim. Sci., 1998; 22: 465-466.
Reinemeyer, C.R., Clymer, B.C.: Comparative efficiency of moxidectin gel or ivermectin paste for cyathostome control in young horses. J. Equine Vet. Sci., 2002; 22: 33-36.
Boersema, J.H., Eysker, M., Van der Aar, W.M.: The reappearance of strongyle eggs in the faeces of horses after treatment with moxidectin. Vet. Quart., 1998; 20: 15-17.