Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-26T00:26:58.273Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of temperature on hatching and viability of the eggs of Bunostomum trigonocephalum Rudolphi, 1808

Published online by Cambridge University Press:  06 April 2009

G. Premvati  and
Bandana Narain
G. Premvati
Affiliation:
Department of Zoology, University of Lucknow, Lucknow, India
Bandana Narain
Affiliation:
Department of Zoology, University of Lucknow, Lucknow, India
Get access Rights & Permissions [Opens in a new window]

Extract

The effect of temperature on the hatching and viability of the eggs of Bunostomum trigonocephalum in a tropical climate is described. All experiments were performed with 500 eggs in each dish of saline medium. Experiments on hatching of eggs at any one temperature were repeated twelve times and on viability of eggs eight times.

The range of temperature for hatching was found to be 10–34 °C. The time for commencement and for termination of hatching of eggs (in hours) was 18 and 48 at 34 °C, 21 and 51 at 30 °C, 24 and 54 at 25 °C, 45 and 78 at 20 °C, 77 and 119 at 15 °C, and 264 and 360 at 10 °C.

The rate of hatching of eggs was observed at temperatures of 10, 15, 20, 25, 30 and 34 °C. Maximum hatching took place at 34 °C, which is also the optimum temperature for hatching. At a temperature of 10 °C, 98–99% of the eggs did not develop.

The viability of eggs was observed at temperatures above and below the hatching range. Eggs remained viable up to 7 h at – 10 °C, 5 days at 0 °C, 7 days at 5 °C, 10 h at 35 °C, 6 h at 40 °C, 1 h at 45 °C, and 20 min at 50 °C.

The authors wish to acknowledge a research grant from the Scientific Research Committee, Uttar Pradesh, India. We also express our thanks to Professor M. B. Lal for his kind encouragement and interest throughout this study.

Type
Research Article
Information
Parasitology , Volume 59 , Issue 1 , February 1969 , pp. 185 - 191
Copyright
Copyright © Cambridge University Press 1969

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

Baillet, C. C. (1866). Helminthes. Nouv. Dict. prat. Méd. vét. 8, 519–87.Google Scholar
Belle, E. A. (1959). The effect of microenvironment on the free living stages of Bunostomum trigonocephalum. Can. J. Zool. 37, 289–98.CrossRefGoogle Scholar
Demidova, N. V. (1957). Epidemiology of Bunostomum infestation in sheep. Trudy mosk. vet. Akad. 19, 327–38.Google Scholar
Hesse, A. J. (1923). On the free living larval stages of the nematode Bunostomum trigonocephalum (Rud.), a parasite of sheep. J. Helminth. 1, 21–8.CrossRefGoogle Scholar
Narain, B. (1965). Survival of the first stage larvae and infective larvae of Bunostomum trigonocephalum Rudolphi, 1808. Parasitology 55, 551–8.Google Scholar
Ortlepp, R. J. (1939). Observations on the life history of Bunostomum trigonocephalum, a hookworm of sheep and goats. Onderstepoort J. vet. Sci. Anim. Ind. 12, 305–18.Google Scholar
Sarimsakov, F. S. (1959). The biology of Bunostomum trigonocephalum (Rudolphi, 1808) in sheep and goats. (In Russian). Sb. much. Trud. Uzbek. Akad. Selskh. Nauk 13, 112–18.Google Scholar
Sprent, J. F. A. (1946). Studies on the life history of Bunostomum phlebotomum (Railliet, 1900) a hookworm parasite of cattle. Parasitology 37, 192–201.CrossRefGoogle ScholarPubMed