Browsing 1971 Onderstepoort Journal of Veterinary Research, Volume 38, 1971 by Author "Collins, H. Maria"

Browsing 1971 Onderstepoort Journal of Veterinary Research, Volume 38, 1971 by Author "Collins, H. Maria"

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  • Studies on Dictyocaulus filaria. III. The migration of the immature stages applied to an anthelmintic test 
    Reinecke, R.K.; Collins, H. Maria; Anderson, P.J.S.; South Africa. Dept. of Agricultural Technical Services; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E.; Howell, P.G. (Pretoria : Government Printer, 1971)
    The larvae of Dictyocaulus filaria (Rudolphi, 1809) develop to the 5th stage in the mesenteric lymph nodes within 6 to 8 days of infestation. The migration of the 5th stage to the lungs commences on the 7th or 8th day ...
  • Studies on Dictyocaulus filaria. IV. The morphogenesis of the parasitic stages in lambs 
    Verster, Anna; Collins, H. Maria; Anderson, P.J.S.; South Africa. Dept. of Agricultural Technical Services; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E.; Howell, P.G. (Pretoria : Government Printer, 1971)
    In males the parasitic 3rd stage, 3rd moult, 4th stage, 4th moult and 5th stage are reached on Days 1 to 2, 3, 4, 5 to 6 and 8 respectively. The 4th stage is swollen in the anal region and accessory genitalia differentiate ...