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Browsing 1964 Onderstepoort Journal of Veterinary Research, Volume 31, 1964 by Author "Rossiter, L.W."
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Rossiter, L.W.; Jansen, B.C.
(Pretoria : The Government Printer, 1964)
An experiment comparing critical slaughter results with egg count data collected ante mortem is described.
Haemonchus contortus was prevalent from December to April; Ostertagia spp. from October to December; Trichostrongylus ...