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Sustained-release bolus for deworming dairy heifers

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Authors

Thomas A. Shultz, Cooperative Extension, Tulare County
E. Michael Huffman
Norman F. Baker, University of California, Davis

Publication Information

California Agriculture 42(2):4-5.

Published March 01, 1988

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Abstract

Abstract Not Available – First paragraph follows:A major source of gastrointestinal worm infestation of grazing heifers is larvae that have survived the winter on pasture grass. When these larvae are swallowed and mature inside the heifer, they produce eggs that are shed in the feces, resulting in a higher pasture contamination later in the grazing season. To break this recycling of pasture worm infestations, multiple deworming is needed. This adds labor and other costs, since the heifers are on pasture and may not be easily accessible.

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Author notes

The authors thank D.J. Walstrom and W. S. Swafford, Pfizer Inc., for technical assistance and research funds, and the J. Ruch and A. Van Groningen Dairies of Visalia for providing animals and facilities; and they wish to acknowledge the use of data presented at the 81st Annual American Dairy Science Association Meeting, 1986.

Sustained-release bolus for deworming dairy heifers

Thomas A. Shultz, E. Michael Huffman, Norman F. Baker
Webmaster Email: wsuckow@ucanr.edu

Sustained-release bolus for deworming dairy heifers

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

Thomas A. Shultz, Cooperative Extension, Tulare County
E. Michael Huffman
Norman F. Baker, University of California, Davis

Publication Information

California Agriculture 42(2):4-5.

Published March 01, 1988

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Abstract Not Available – First paragraph follows:A major source of gastrointestinal worm infestation of grazing heifers is larvae that have survived the winter on pasture grass. When these larvae are swallowed and mature inside the heifer, they produce eggs that are shed in the feces, resulting in a higher pasture contamination later in the grazing season. To break this recycling of pasture worm infestations, multiple deworming is needed. This adds labor and other costs, since the heifers are on pasture and may not be easily accessible.

Full text

Full text is available in PDF.

Author notes

The authors thank D.J. Walstrom and W. S. Swafford, Pfizer Inc., for technical assistance and research funds, and the J. Ruch and A. Van Groningen Dairies of Visalia for providing animals and facilities; and they wish to acknowledge the use of data presented at the 81st Annual American Dairy Science Association Meeting, 1986.


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