| Relationship between plasma progesterone and pregnancy-associated glycoprotein concentrations during early pregnancy in dairy cows. | |
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MedLine Citation:
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PMID: 22835861 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The relationship between the concentration of plasma progesterone (P4) during embryo attachment or at recognition of pregnancy, and that of pregnancy-associated glycoprotein (PAG) was assessed in dairy cows. The outcome of artificial insemination (AI) was classified as positive (AI+), negative (AI-), or late embryonic mortality (EM) by measuring circulating PAG concentrations and by ultrasonography. Based on P4 concentrations at either day 21 or day 15, AI+ and EM cows were classified into 'low' (P4 concentrations<mean) and 'high' (P4 concentrations>mean) P4 groups. In both experiments, the threshold of P4 concentration between the 'low' and 'high' groups was approximately 6ng/mL. PAG concentrations were lower in the 'low' group only when P4 concentrations were below the threshold. The study findings suggest that a possible P4 threshold exists below which PAG secretion may be impaired. |
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Authors:
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Olimpia Barbato; Mariacristina Merlo; Pietro Celi; Noelita M Sousa; Luigi Guarneri; Jean F Beckers; Gianfranco Gabai |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-7-24 |
Journal Detail:
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Title: Veterinary journal (London, England : 1997) Volume: - ISSN: 1532-2971 ISO Abbreviation: - Publication Date: 2012 Jul |
Date Detail:
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Created Date: 2012-7-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9706281 Medline TA: Vet J Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Crown Copyright © 2012. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Biopathological Veterinary Science, Faculty of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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