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Peripartal plasma concentrations of 15-ketodihydro-PGF(2α), cortisol, progesterone and 17-β-estradiol in Martina Franca jennies.
MedLine Citation:
PMID:  21111471     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The transition from intra- to extrauterine environment represents a very delicate phase, in which the successful coordination of maturation is strictly connected with several hormonal changes during the last weeks of gestation and at parturition. While the peripartal endocrinology in the mare has been deeply investigated, the peripartal hormonal changes in the jenny need further evaluation. The aim of this study is to evaluate the mean 15-ketodihydro-PGF(2α) (PGFM), cortisol (C), progesterone (P4), and 17β-estradiol (E2) levels during the peripartal period in this species. Ten Martina Franca jennies, with normal gestational length and parturition, were enrolled. From each jenny, blood was collected twice a day from 10 d before to 7 d after parturition and from the plasma obtained PGFM, C, P4 and E2 were analyzed by RIA. Higher, constant PGFM concentrations were observed in the pre-foaling days compared to the decreasing levels detected the days after delivery, as previously observed in the mare. During the whole period of observation no significant differences in plasma C levels were detected. In contrast to the mare, P4 has always been detectable and the highest level found at -2.5 days was significantly different compared to samples obtained between -10 and -4.5 days and between 1.5 and 7 days after foaling. Finally, E2 showed higher concentrations before foaling, with the highest values between -3 and -1.5 days, decreasing only one day before foaling. A positive correlation was found between PGFM and P4, during the last 4 days of gestation, while a positive correlation between PGFM and E2 was observed during the prepartum. Despite some similarities with the mare exist, differences have been found in P4 and E2 profiles, underlining once more the differences in the physiology of this two species.
Authors:
Maria Cristina Veronesi; Sara Panzani; Nadia Govoni; Hans Kindahl; Giovanna Galeati; Domenico Robbe; Augusto Carluccio
Publication Detail:
Type:  Journal Article     Date:  2010-11-26
Journal Detail:
Title:  Theriogenology     Volume:  75     ISSN:  1879-3231     ISO Abbreviation:  Theriogenology     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0421510     Medline TA:  Theriogenology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  752-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Affiliation:
Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Università degli Studi di Milano, Via G. Celoria, 10 20133 Milan, Italy.
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