Short Communication

The rate of spread of sheep scab within small groups of Merino and Dorper sheep : short communication

T. Meintjies, L.J. Fourie, I.G. Horak
Journal of the South African Veterinary Association | Vol 73, No 3 | a578 | DOI: https://doi.org/10.4102/jsava.v73i3.578 | © 2002 T. Meintjies, L.J. Fourie, I.G. Horak | This work is licensed under CC Attribution 4.0
Submitted: 06 July 2002 | Published: 06 July 2002

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T. Meintjies,
L.J. Fourie,
I.G. Horak,

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Abstract

A single Merino sheep, artificially infested with the sheep scab mite, Psoroptes ovis, and a similarly infested Dorper sheep were placed with 9 uninfested Merino or 9 uninfested Dorper sheep respectively during winter and the rate of spread of infestation on the uninfested sheep observed. The same procedure was repeated in summer. It took 14 and 8 weeks respectively in winter before all sheep in the 2 groups displayed lesions of sheep scab, whereas in summer it took 10 and 12 weeks before all sheep had lesions.

Keywords

Dorper Sheep; Merino Sheep; Psoroptes Ovis; Rate Of Spread; Sheep Scab

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