Winter Survival of Some Cattle Parasites on a Kentucky Pasture with Observations on the Effects of Low-Level Phenothiazine Treatment

Jh, Drudge; Se, Leland; Zn, Wyant; Jw, Rust

doi:10.2307/3274330

Cited by 6 publications

(2 citation statements)

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“…The longevity of the third-stage larvae is of particular practical significance. Various American workers including Baker (1939), Goldberg & Rubin (1956), Drudge, Leland, Wyant & Rust (1958), have demonstrated by field experiments that infection can survive on pastures for up to 9 months. The present observations suggest that infection can persist for considerably longer, at least in southern England.…”

Section: Discussionmentioning

confidence: 99%

Some observations on the free-living stages of Ostertagia ostertagi, a stomach worm of cattle

Rose

1961

Parasitology

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Outdoor observations were made on the rate of development of the free-living stages of O. ostertagi at different times of the year, and on the migratory activities and longevity of the larvae in faeces, on herbage and in soil.The effect of temperature on the rate of development of eggs and larvae in faeces, and the effect of temperature and humidity on the longevity of eggs and larvae when separated from faeces, were studied in the laboratory.The results of these observations are discussed in relation to translation (that is, the process whereby eggs in faeces become infective larvae on herbage available to the grazing animal) and to the transmission of infection in the field.I wish to thank Mr J. F. Michel for providing the infected faeces, and Mr D. A. Griffiths for technical assistance.

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Section: Discussionmentioning

confidence: 99%