Fecal egg counts after anthelmintic administration to aged horses and horses with pituitary pars intermedia dysfunction.

Journal of the American Veterinary Medical Association
D McFarlaneLara K Maxwell

Abstract

To determine effects of pituitary pars intermedia dysfunction (Cushing's disease) and age on fecal egg count and time to egg reappearance after anthelmintic treatment in horses residing in similar environments. Cross-sectional study. 29 healthy horses (4 to 35 years old) and 13 horses with PPID (13 to 33 years old). Fecal egg counts were performed by use of a modified Wisconsin flotation method at 2-week intervals before and after ivermectin treatment. Horses with PPID had higher fecal egg counts before and 8, 10, and 12 weeks after ivermectin treatment, compared with counts for site-matched healthy horses. There was no difference in the period for < 90% reduction in fecal egg counts between the 2 groups. Age did not affect fecal egg counts at any time point. For similar environmental conditions, horses with PPID were more likely to have higher fecal egg counts than were healthy horses. Therefore, horses with PPID may need to have a more aggressive parasite prevention program than do healthy horses. Age did not affect fecal egg counts or time to egg reappearance after anthelmintic treatment, which suggested age alone does not likely require special consideration when designing a parasite control program for adult horses.

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Citations

Jun 25, 2014·American Journal of Veterinary Research·Laurel M MastroKristine L Urschel
Sep 23, 2014·Domestic Animal Endocrinology·L M MastroK L Urschel
May 30, 2012·The Veterinary Clinics of North America. Equine Practice·Claudia Sandoval, Claudia True
Mar 12, 2011·The Veterinary Clinics of North America. Equine Practice·Dianne McFarlane
Oct 31, 2012·Australian Veterinary Journal·C W Spelta, J E Axon
Jun 23, 2016·The Veterinary Clinics of North America. Equine Practice·Dianne McFarlane
Jul 28, 2016·The Veterinary Clinics of North America. Equine Practice·Joanne L Ireland
Oct 16, 2015·Veterinary Pathology·M A MillerJ E Kritchevsky
Jan 1, 2011·Animals : an Open Access Journal From MDPI·Catherine McGowan
Apr 7, 2021·The Veterinary Clinics of North America. Equine Practice·Nicola Jarvis, Harold C McKenzie
May 18, 2021·Journal of Equine Veterinary Science·Danielle L KeatingSteffanie V Burk

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Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.

Anthelmintics (ASM)

Anthelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them and without causing significant damage to the host. Discover the latest research on anthelmintics here.