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Plasma vitamin A status in calves fed colostrum from cows that were fed vitamin A during late pregnancy

Puvogel, G. and Baumrucker, C. and Blum, J. W.. (2008) Plasma vitamin A status in calves fed colostrum from cows that were fed vitamin A during late pregnancy. Journal of animal physiology and animal nutrition, Vol. 92. S. 614-620.

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Official URL: http://edoc.unibas.ch/dok/A6003577

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Abstract

Calves are born vitamin A and beta-carotene deficient and the beta-carotene conversion to vitamin A is limited. Colostrum, contains relatively large amounts of vitamin A and beta-carotene and the retinol and beta-carotene status of calves can be normalized with colostrum consumption. We studied whether vitamin A supplementation of cows during late gestation (dry period) increases cow plasma retinol concentrations, the retinol content of first colostrum, and the plasma vitamin A status of calves during their first month of life. Both plasma and colostrum retinol concentrations were higher in vitamin A supplemented cows than in non-supplemented cows. In calves that were for 5 days fed colostrum (milk) from vitamin A-supplemented cows and then mature milk, plasma retinol concentrations were higher from 14 to 30 days after birth than in calves that were fed colostrum (milk) from cows that were not vitamin A supplemented. The study shows that vitamin A supplementation of cows during the dry period can improve the vitamin A status of their calves up to 1 month, if calves ingest their colostrum/milk for up to 5 days.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Medicine > Medical Consultations (Blum)
UniBasel Contributors:Blum, Johannes A.
Item Type:Article, refereed
Bibsysno:Link to catalogue
Publisher:Parey
ISSN:0931-2439
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:01 Mar 2013 11:08
Deposited On:11 Oct 2012 15:26

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