Oxytocin Plasma Levels in Cows with Normal Parturition or Dystocia and with Placental Retention*)

Genowefa Kotwica; T. Janowski; S. Zdunczyk; A. Ras

doi:10.1055/s-0029-1210953

Experimental and Clinical Endocrinology & Diabetes, Inhaltsverzeichnis

Exp Clin Endocrinol Diabetes 1990; 95(2): 203-209
DOI: 10.1055/s-0029-1210953

Original

Oxytocin Plasma Levels in Cows with Normal Parturition or Dystocia and with Placental Retention^*)

Genowefa Kotwica¹ , T. Janowski, S. Zdunczyk, A. Ras

¹Department of Animal Physiology (Head : Prof. dr hab. J. Przala) University of Agriculture and Technology, Olsztyn-Kortowo/Poland
Clinic of Obstetrics and Gynecology (Head : Doc. dr hab. T. Glazer), University of Agriculture and Technology, Olsztyn-Kortowo/Poland

*) This research was supported by the Ministry of Science and Higher Education (CPBP 05. 06. 1)

Abstract

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Summary

Plasma oxytocin level was determined by RIA in eight cows with normal parturition or with dystocia and retained foetal membranes. Both concentration and profile of oxytocin measured around parturition in cows with these disturbances were markedly changed, compared to the cows with the normal course of parturition. Oxytocin was released in the greatest amounts during physiological parturition or during parturition with dystocia in response to the Ferguson reflex only. In cows with dystocia lengthen of the period of the low oxytocin level was observed, though cervix was dilated. Then, it seems that some cases of placental retention are releated to the low oxytocin level.

Key words

Oxytocin - Cows - Parturition - Dystocia - Placental retention

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