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Seasonal changes may cause vitamin A deficiency in range heifers

California Agriculture > Volume 43 > Number 3  > research article 

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Authors

James G. Morris, University of California
Teresa I. Iglesias, University of California
Myung-Hee Kang, University of California

Publication Information

California Agriculture 43(3):30-31.

Published May 01, 1989

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Abstract

Range cattle obtain vitamin A from carotenoids in green plants. In northern California's foothill ranges, carotenoids are destroyed as forage dries in the summer. Tests of liver and blood plasma in grazing cattle indicated that mature breeding cows can store enough vitamin A during the green season to meet later needs. Heifers on their first calf, however, may need vitamin A supplementation.

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Seasonal changes may cause vitamin A deficiency in range heifers

James G. Morris, Teresa I. Iglesias, Myung-Hee Kang
University
of
California
Division of Agriculture
and
Natural Resources
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Seasonal changes may cause vitamin A deficiency in range heifers

California Agriculture > Volume 43 > Number 3  > research article 

< Previous | Table of Contents | Next >

< Previous | Table of Contents | Next >

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

James G. Morris, University of California
Teresa I. Iglesias, University of California
Myung-Hee Kang, University of California

Publication Information

California Agriculture 43(3):30-31.

Published May 01, 1989

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Range cattle obtain vitamin A from carotenoids in green plants. In northern California's foothill ranges, carotenoids are destroyed as forage dries in the summer. Tests of liver and blood plasma in grazing cattle indicated that mature breeding cows can store enough vitamin A during the green season to meet later needs. Heifers on their first calf, however, may need vitamin A supplementation.

Full text

Full text is available in PDF.

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