oa Farming in South Africa - Goat mange-The infectivity of kraals
In the Ninth and Tenth Reports of the Director of Veterinary Education and Research (1924), an article by Dr. P.J. du Toit appeared under the title ""Sheep Scab: The infectivity of kraals"". The experiments recorded in that article seemed to prove conclusively that a kraal grossly infected with scab parasites (Psoroptes ovis), if kept free of sheep for a period of seventeen days, will not infect clean sheep.
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