Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-03T00:33:13.644Z Has data issue: false hasContentIssue false
  • English
  • Français

The growth of Cooperia curticei (Giles, 1892), a nematode parasite of sheep

Published online by Cambridge University Press:  06 April 2009

R. I. Sommerville
R. I. Sommerville
Affiliation:
Zoology Department, Massey Agricultural College, Palmerston North, New Zealand*
Get access Rights & Permissions [Opens in a new window]

Extract

A growth curve of the parasitic stage of Cooperia curticei was drawn from measurements of worms collected from sheep between 2 and 22 days after infection. Exsheathed third-stage larvae did not grow during the first 48 hr. in the host. However, growth commenced between 48 and 72 hr. after infection, immediately prior to the third ecdysis. Following this ecdysis, the young fourth-stage larvae increased in length until the sixth day after infection, when growth ceased with the onset of the fourth lethargus. In most worms, this lethargus was terminated by the fourth ecdysis 8 days after infection. However, even in the oldest infections, late fourth-stage larvae were found which had been unable to enter the fifth stage. The first worms to reach the fifth stage ceased growth between 12 and 14 days after infection.

Type
Research Article
Information
Parasitology , Volume 50 , Issue 1-2 , May 1960 , pp. 261 - 267
Copyright
Copyright © Cambridge University Press 1960

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Ackert, J. F. (1931). The morphology and life history of the fowl nematode Ascaridia lineata (Schneider). Parasitology, 23, 360–79.CrossRefGoogle Scholar
Andrews, J. S. (1939). Life history of the nematode Cooperia curticei, and the development of resistance in sheep. J. Agric. Res. 58, 771–85.Google Scholar
Archer, D. M. & Hopkins, C. A. (1958). Studies on cestode metabolism. III. Growth pattern of Diphyllobothrium spp. in a definative host. Exp. Parasit. 7, 125–44.CrossRefGoogle Scholar
Bird, A. F. (1959). Development of the root-knot nematodes Meloidogyne javanica (Treub) and Meloidogyne hapla Chitwood in the tomato. Nematologica, 4, 31–42.CrossRefGoogle Scholar
Bremner, K. C. (1956). The parasitic life cycle of Haemonchus placei (Place) Ransom (Nematoda: Trichostrongylidae). Aust. J. Zool. 4, 146–51.CrossRefGoogle Scholar
McCoy, O. R. (1930). The influence of temperature, hydrogen-ion concentration and oxygen tension upon the development of eggs and larvae of the dog hookworm, Ancylostoma caninum. Amer. J. Hyg. 11, 413–48.Google Scholar
Michel, J. F. (1952). Inhibition of development of Trichostrongylus retortaeformis. Nature, Lond., 169, 933–4.CrossRefGoogle ScholarPubMed
Mönnig, H. O. (1926). The life-histories of Trichostrongylus instabilis and T. rugatus of sheep in South Africa. 11th and 12th Rep. Dir. Vet. Res., Union S. Afr., pp. 231–51.Google Scholar
Sommerville, R. I. (1954). The histotropic phase of the nematode parasite, Ostertagia circumcincta. Aust. J. Agric. Res. 5, 130–40.CrossRefGoogle Scholar
Stoll, N. R. (1940). In vitro conditions favouring ecdysis at the end of the first parasitic stage of Haemonchus contortus (Nematoda). Growth, 4, 383–406.Google Scholar
Tetley, J. H. (1949). Rhythms in nematode parasitism of sheep. Bull. N.Z. Dep. Sci. Industr. Res. no. 96.Google Scholar
Twohy, D. W. (1956). The early migration and growth of Nippostrongylus muris in the rat. Amer. J. Hyg. 63, 165–85.Google ScholarPubMed
Veglia, F. (1915). The anatomy and life history of the Haemonchus contortus (Rud.). 3rd and 4th Rep. Dir. Vet. Res., Union S. Afr., pp. 347–500.Google Scholar
Whitlock, H. V.Personal communication. McMaster Laboratory, C.S.I.R.O., Parramatta Rd., Glebe, N.S.W., Australia.Google Scholar