The post-parturient rise in the faecal nematode egg count of ewes: Some host-parasite relationships

Abstract

Extract Both the aetiology and practical importance of the post-parturient rise in strongyle egg counts of breeding ewes have been adequately reviewed and discussed ( Dunsmore, 1965 Arundel, J. H. and Ford, G. E. 1969. The use of a single anthelmintic treatment to control the post-parturient rise in faecal worm egg count of sheep. Aust. vet. J., 45: 89–93. [Google Scholar] ; Connan, 1968a Brunsdon, R. V. 1964. The seasonal variations in the nematode egg counts of sheep: a comparison of the spring rise phenomenon in breeding and unmated ewes. N.Z. vet. J., 12: 75–80. [Taylor & Francis Online] [Google Scholar] , b Brunsdon, R. V. 1967. The spring-rise phenomenon: the relationship between the time of lambing and the commencement of the rise in faecal worm egg counts. N.Z. vet. J., 15: 35–40. [Taylor & Francis Online] [Google Scholar] ; Arundel and Ford, 1969 Brunsdon, R. V. 1970. The spring-rise phenomenon seasonal changes in the worm burdens of breeding ewes and in the availability of pasture infection. N.Z. vet. J., 18: 47–54. [Taylor & Francis Online] [Google Scholar] ).