Browsing 1984 Onderstepoort Journal of Veterinary Research, Volume 51, 1984 by Author "Hayes, Marianna"

Browsing 1984 Onderstepoort Journal of Veterinary Research, Volume 51, 1984 by Author "Hayes, Marianna"

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  • The acquisition of immunity to Histophilus ovis by sheep in nature 
    Jansen, B.C.; Hayes, Marianna; Bigalke, R.D. (Pretoria : Government Printer, 1984)
    It was demonstrated that skin wound infection with Histophilus ovis elicits an immune response which can protect a ram against a challenge injection of the same organism into its epididymis.
  • Immunity against genital infection by Histophilus-ovis in rams 
    Jansen, B.C.; Hayes, Marianna; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1984)
    Rams have been immunized against an infection of their genitalia by Histaphilus avis. An alum-precipitated antigen and an antigen plus Freund's complete adjuvant proved equally effective. An injection of live H. ovis into ...