The effect of temperature on times to hatching of eggs of the nematode Ostertagia circumcincta

A delayed gamma distribution satisfactorily described the distribution of times to hatching of Ostertagia circumcincta eggs incubated in 0·1% saline at temperatures between 6 and 20 °C. Below 6 °C hatching of eggs was extremely variable. The relationship between rates of development and temperature...

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Bibliographic Details
Published in:Parasitology 1980-12, Vol.81 (3), p.477-491
Main Authors: Young, R. R., Anderson, N., Overend, D., Tweedie, R. L., Malafant, K. W. J., Preston, G. A. N.
Format: Article
Language:English
Subjects:
animal health
animal parasites and pests
Animals
Female
helminths
Ostertagiasis - parasitology
Ostertagiasis - veterinary
Ovum - physiology
Sheep
Sheep Diseases - parasitology
Temperature
Time Factors
Trichostrongyloidea - growth & development
Trichostrongyloidea - physiology
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Summary:A delayed gamma distribution satisfactorily described the distribution of times to hatching of Ostertagia circumcincta eggs incubated in 0·1% saline at temperatures between 6 and 20 °C. Below 6 °C hatching of eggs was extremely variable. The relationship between rates of development and temperature within the range 10 to 20 °C was more closely described by a non-linear function than a linear one. The non-linear function was incorporated into a temperature summation equation which satisfactorily predicted the hatching of eggs incubated under conditions of alternating temperatures.
ISSN:0031-1820
1469-8161
DOI:10.1017/S0031182000061874