| Effect of a combined iodine and selenium supplementation on I and Se status of cows and their calves. | |
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MedLine Citation:
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PMID: 21514807 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Iodine (I) and selenium (Se) deficiencies are commonly reported in cattle, however, there are also studies regarding a very high iodine supply. The aim of the study was to determine the long-term effect of I and Se supplementation on non-pregnant cows, pregnant cows and their calves. The hypothalamus pituitary axis was investigated (TSH, T4, T3 assays) during a TRH challenge on non-pregnant cows. Twenty-four cows, half of them pregnant, were assigned into 2 diet-groups, one group with a low I (0.45ppm) and Se (0.15ppm) diet (LISe), the other with a high I (5.45ppm) and Se (0.45ppm) diet (HISe), for a period of 120days. Nutritional (plasma iodide, urinary I, plasma Se, I content in colostrum and foetal fluids) and functional (thyrotropin, thyroid hormones, glutathione-peroxidase activity in erythrocytes) markers of I and Se status were assayed in dams at regular intervals for 120days and in their calves at birth. A TRH challenge was performed on 8 non-pregnant cows at day 110 of the trial. At the end of the study, I and Se nutritional markers were higher in dams in the HISe group, compared to the LISe group, except for plasma Se. At birth, I nutritional markers in calves in the HISe group were higher compared to the LISe group. Reactivity of the pituitary-thyroid-axis was not influenced by I and Se supplementation. I and Se supplementation is efficient in improving newborn status. |
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Authors:
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Hugues Guyot; Laurent Alves de Oliveira; Eve Ramery; Jean-François Beckers; Frederic Rollin |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-21 |
Journal Detail:
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Title: Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) Volume: - ISSN: 1878-3252 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9508274 Medline TA: J Trace Elem Med Biol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier GmbH. All rights reserved. |
Affiliation:
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University of Liege, Faculty of Veterinary Medicine, Clinic for Ruminants, Boulevard de Colonster, 20 Bat. B42, 4000 Liege, Belgium. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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