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Survival of the first-stage larvae and infective larvae of Bunostomum trigonocephalum Rudolphi, 1808

Published online by Cambridge University Press:  06 April 2009

Bandana Narain
Bandana Narain
Affiliation:
Zoology Department, University of Lucknow, Lucknow (India)
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Extract

The free-living larval stages of Bunostomum trigonocephalum are better adapted to low temperatures than high temperatures. Most survived at 10°C.

In tap water, 1st-stage larvae survived for 11 days at 0°C, 17 days at 5°C, 20 days at 10°C, 15 days at 15°C, 18 days at 20°C, 15 days at 25°C, 9 days at 30°C, 7 days at 34°C, 4 days at 35°C, 16 h at 40°C, 40 min at 45°C and 20 min at 50°C.

In tap water infective larvae survived for 40 days at 0°C, 70 days at 5°C, 100 days at 10 and 15°C. 65 days at 20°C, 48 days at 25°C, 38 days at 30°C, 14 days at 34°C, 6 days at 35°C, 5 days at 40°C, 3 h at 45°C and 105 min at 50°C.

In tap water at room temperature infective larvae survived for 26 days in January, 20 days in February, 21 days in March, 13 days in April, 10 days in May, 6 days in June, 9 days in July and August, 11 days in September, 12 days in October, 14 days in November and 17 days in December.

I thank Professor M. B. Lal for his interest and for providing laboratory facilities in the Department of Zoology, University of Lucknow; Dr Premvati for guidance; and the Scientific Research Committee, U.P., India, for financial help.

Type
Research Article
Information
Parasitology , Volume 55 , Issue 3 , August 1965 , pp. 551 - 558
Copyright
Copyright © Cambridge University Press 1965

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References

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