Abstract
Extract The literature relating to the aetiology of the post-parturient rise in strongyle faecal egg counts of ewes has been recently reviewed and discussed by Dunsmore ( 1965 Dunsmore, J. D. 1965. Ostertagia spp. in lambs and pregnant ewes. J. Helminth., 39: 159–184. [Google Scholar] ) and Connan ( 1968a Connan, R. M. 1968a. The post-parturient rise in faecal nematode egg count of ewes; its aetiology and epidemiological significance. World. Rev. anim. Prod., 4: 53–57. [Google Scholar] , b Connan, R. M. 1968b. Studies on the worm populations in the alimentary tract of breeding ewes. J. Helminth., 42: 9–28. [Crossref], [PubMed] [Google Scholar] ).