Article (Scientific journals)
Hormonal measurements in late pregnancy and parturition in dairy cows - possible tools to monitor foetal well being
Kornmatitsuk, B.; Veronesi, M. C.; Madej, A. et al.
2002In Animal Reproduction Science, 72 (3-4), p. 153-164
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Keywords :
cattle-pregnancy; late pregnancy; parturition; endocrine; foetal well being
Abstract :
[en] Three dairy heifers (A, B and C) were induced to parturition with two prostaglandin (PG) F-2alpha injections on day 268 and 269 of pregnancy. Signs of approaching parturition were carefully observed. The following parameters were registered: degrees of calving difficulty, date and time of parturition, calf's birth weight and calf's sex. Body temperature was measured and blood samples were taken every 3 h 3 days before the first PGF(2alpha) injection until 3 days after parturition. The plasma concentrations of the PGF2a metabolite, progesterone, cortisol, oestrone sulphate and pregnancy associated glycoproteins (PAGs) were analysed. Heifers A, B and C delivered 48, 51 and 57 h after the first PGF(2alpha) injection, respectively. Heifer A delivered without any signs of calving difficulty, whereas, the parturition was considered to be slight and moderate difficulty occurred in the delivery of heifers B and C, respectively. The calf of heifer C, without any abnormal gross-evidences, was stillborn. All animals had retained foetal membranes. A slight increase of the PGF(2alpha) metabolite at the time of parturition was found only in heifer C, whereas the levels dramatically increased in all animals 15-24 h after parturition. At the same time, progesterone levels decreased within 3 h after the first PGF(2alpha) injection (P < 0.05) and reached 0.8, 2.7 and 12.4 nmol/l at the time of parturition in heifers A, B and C, respectively. High release of cortisol at the time of parturition was seen in heifer C. Rising levels of oestrone sulphate around the time of parturition were recorded in all heifers, whereas, increasing levels of PAGs were recorded only in heifer A. In conclusion, the patterns of the PGF(2alpha) metabolite, cortisol, progesterone and PAGs were changed in the cases of calving difficulty and stillbirth after PGF(2alpha)-induction of parturition. However, the relationship between oestrone sulphate and PAGs and the status of foetal well being prior to parturition require further elucidation. (C) 2002 Elsevier Science B.V. All rights reserved.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Kornmatitsuk, B.
Veronesi, M. C.
Madej, A.
Dahl, Ellen
Ropstad, E.
Beckers, Jean-François  ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Forsberg, M.
Gustafsson, H.
Kindahl, Hans
Language :
English
Title :
Hormonal measurements in late pregnancy and parturition in dairy cows - possible tools to monitor foetal well being
Publication date :
2002
Journal title :
Animal Reproduction Science
ISSN :
0378-4320
eISSN :
1873-2232
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
72
Issue :
3-4
Pages :
153-164
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 March 2009

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