J. Anim Sci.
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J. Anim Sci. 1979. 49:306-309.
© 1979 American Society of Animal Science
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Gastrointestinal Parasites in Beef Cows1

John K. Ward2, Donald L. Ferguson3 and Anne M. Parkhurst4

University of Nebraska, Lincoln 68583

Abstract

A total of 2,005 fecal samples collected quarterly over a 5-year period from native Nebraska cows, ages 1 to 6, were examined for internal parasites. Incidence and level of roundworms decreased (P<.05) in older cattle with tendency for lower coccidia infection. Season of the year affected (P<.05) incidence with roundworms and tapeworms being lower in June than in October, January or March and coccidia being greater in October than January, March or June. No clinical cases of internal parasites were observed.

Footnotes

1 Published with the approval of the Director as Paper No. 5605 Journal Series, Nebraska Agr. Exp. Sta.

2 Professor of Ruminant Nutrition, Animal Science Department.

3 Professor Veterinary Science, Veterinary Science Department.

4 Assistant Professor of Biometrics, Biometrics Department.






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Copyright © 1979 by the American Society of Animal Science.