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Scientific Article

The incidence of strongyle nematodes in sheep viscera received at animal health laboratories in New Zealand

1. The abomasal parasites Ostertagia spp. and Trichostrongylus axei

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Pages 72-75 | Received 20 Mar 1974, Published online: 23 Feb 2011

References

  • Anon. Specimens for Laboratory Examination N.Z. Dept. Agric. 1965 8 8
  • Brunsdon , R. V. 1970 . Seasonal changes in the level and composition of nematode worm burdens in young sheep . N.Z. Jl agric. Res. , 13 : 126 – 148 .
  • Crofton , H. C. 1965 . Ecology and biological plasticity of sheep nematodes. I. The effect of temperature on the hatching of eggs of some nematode parasites of sheep . Cornell Vet. , 55 : 242 – 250 .
  • Gibson , T. E. and Everett , G. 1972 . The ecology of the free-living stages of Ostertagia circumcincta . Parasitology , 64 : 451 – 460 .
  • Kates , K. C. 1950 . Survival on pasture of free-living stages of some common gastrointestinal nematodes of sheep . Proc. Helminth. Soc. Wash. , 17 : 39 – 58 .
  • McKenna , P. B. and Ozkoc , U. 1971 . The occurrence of Ostertagia crimensis and O. pinnata in New Zealand sheep . N.Z. vet. J. , 19 : 80 – 82 .
  • McKenna , P. B. , Campbell , E. , Riffkin , G. G. , Rutherford , D. M. and Shirley , D. K. 1973 . The incidence of Haemonchus contortus infections in sheep abomasa received at Animal Health Laboratories in New Zealand . N.Z. vet. J. , 21 : 11 – 16 .
  • Robertson , T. G. and Elliott , D. C. 1966 . The laboratory assessment of worm parasite populations in sheep . N.Z. Jl agric. Res. , 9 : 350 – 358 .
  • Vlassoff , A. 1973 . The seasonal incidence of infective trichostrongyle larvae on pasture grazed by lambs . N.Z. Jl exp. Agric. , 1 : 293 – 301 .

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