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A new technique for the extraction of Nematodirus battus eggs from sheep faeces

Published online by Cambridge University Press:  06 April 2009

W. J. Coadwell
Affiliation:
Biochemistry Department, ARC Institute of Animal Physiology, Babraham, Cambridge CB2 4AT
Jean Martin
Affiliation:
Biochemistry Department, ARC Institute of Animal Physiology, Babraham, Cambridge CB2 4AT
P. F. V. Ward
Affiliation:
Biochemistry Department, ARC Institute of Animal Physiology, Babraham, Cambridge CB2 4AT

Summary

Details are given of a method for the separation of the eggs of the nematode Nematodirus battus from sheep faeces. Faecal pellets obtained from worm-free lambs experimentally infected with N. battus were homogenized and passed through a graded series of metal sieves. The material retained in a 53, µm aperture sieve was transferred to a cylindrical column and the eggs were cleaned and separated from other suspended material by controlled differential flotation using tap water. A model experiment indicated that, within limits, the principle held for any size of tower. The density distribution for eggs at the morula stage of development was determined. Suggested flow rates for a specified tower are given.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1981

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References

REFERENCES

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