Document Detail


Relationship between plasma progesterone and pregnancy-associated glycoprotein concentrations during early pregnancy in dairy cows.
MedLine Citation:
PMID:  22835861     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
Olimpia Barbato; Mariacristina Merlo; Pietro Celi; Noelita M Sousa; Luigi Guarneri; Jean F Beckers; Gianfranco Gabai
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-24
Journal Detail:
Title:  Veterinary journal (London, England : 1997)     Volume:  -     ISSN:  1532-2971     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706281     Medline TA:  Vet J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Crown Copyright © 2012. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Department of Biopathological Veterinary Science, Faculty of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy.
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