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Catheterization of Intestinal Loops in Ruminants

Catheterization of Intestinal Loops in Ruminants

Published on: June 11, 2009

Ulcerative vulvitis and balanitis in sheep flocks.

G C Pritchard¹, S F E Scholes, A P Foster

¹Veterinary Laboratories Agency - Bury St Edmunds, Rougham Hill, Bury St Edmunds, Suffolk ip33 2rx, UK.

The Veterinary Record

|July 22, 2008

Summary

Outbreaks of ulcerative vulvitis and balanitis in sheep were investigated. Ovine herpesvirus type 2 was detected in affected animals, suggesting a potential new cause for these sheep reproductive conditions.

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Area of Science:

Veterinary Medicine
Sheep Health
Infectious Diseases

Background:

Ulcerative vulvitis and balanitis are recognized conditions in sheep.
Previous outbreaks have been linked to pathogens like mycoplasmas.

Purpose of the Study:

To investigate the cause of recent outbreaks of ulcerative vulvitis and balanitis in commercial sheep flocks.
To identify potential pathogens involved in these conditions.

Main Methods:

Clinical examination of affected sheep.
Laboratory analysis including PCR for pathogen detection.
Investigation of three commercial sheep flocks in England and Wales.

Main Results:

Outbreaks affected 29-44% of ewes, with most lesions resolving within three weeks.
Standard pathogens, including mycoplasmas, were not detected.
Ovine herpesvirus type 2 (OvHV-2) was detected via PCR in blood and vulval ulcers of affected ewes and in the penis of an affected ram.

Conclusions:

Ovine herpesvirus type 2 is a potential causative agent of ulcerative vulvitis and balanitis in sheep.
This finding challenges previous etiological assumptions for these conditions.
Further research is warranted to confirm OvHV-2 as the primary cause and understand transmission dynamics.