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Author Riek, R. F. ♦ Keith, R. K.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword BIOLOGY AND MEDICINE ♦ AGE ♦ CALVES ♦ CATTLE ♦ HELMINTHS ♦ INFECTIONS ♦ INTESTINE ♦ IRRADIATION ♦ PARASITES ♦ RADIATION DOSES ♦ RADIATION EFFECTS ♦ STANDARDS ♦ STOMACH ♦ TABLES ♦ X RADIATION
Abstract Calves reared worm-free were given either normal infective larvae or irradiated larvae of Oesophagostomum radiatum. These helminths often cause gastrointestinal infestation in cattle. The irradiated larvae were exposed to 20,000 r of x radiation. Calves from the group given irradiated larvae were killed aad examined for worms 3, 4, 5, 6, and 8 weeks after infestation. A calf from the control group was killed 6 weeks after infestation. Results from examinations for worms are tabulated. The main effect of this level of radiation was to prevent the establishment of an adult male population in norrnal numbers. Findings are discussed. (C.H.)
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-06-18
Publisher Department Commonwealth Scientific and Industrial Research Organization, Yeerongpilly, Queensland, Australia
Journal Nature
Volume Number 186
Organization Commonwealth Scientific and Industrial Research Organization, Yeerongpilly, Queensland, Australia


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