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Bacteriological and Histological Investigation of the Postpartum Bovine Uterus in Two Estonian Dairy Herds

Acta Veterinaria Scandinavica volume 39, pages 423–432 (1998)Cite this article

Abstract

Postpartum uterine infections, endometrial histology and resumption of ovarian activity in cows were studied in 2 Estonian dairy herds with different herd sizes, milk yields and management systems. Ten cows at Farm A and 5 cows at Farm B were studied in the experiment. All cows in the study had normal calving performance. Endometrial biopsies for bacteriological and histological examinations were collected once a week starting on the second week postpartum and continuing for 7 weeks postpartum. Milk progesterone samples were collected twice a week during the whole study period. In both herds, the uterine flora contained mainly facultative anaerobic bacteria (Streptococcus spp., E. coli, Staphylococcus spp., Proteus vulgaris). Among obligate anaerobic bacteria only Bacteroides spp. were found. After 7 weeks of collection at farm A, a bacterial uterine flora still persisted in 2 of the cows. At farm B, on the other hand, bacterial elimination was complete after 6 weeks. Presence of inflammatory cells in uterine histology specimens remained higher at the end of collection and resumption of ovarian activity was delayed at farm A. After 7 weeks postpartum, only 6 of the 10 cows at farm A had resumed ovarian cyclicity, while at farm B the first oestrous cycle had occurred in all cows. The study showed that differences regarding uterine infections and their clearance occured between farms and, despite these differences, cows with normal calving performance will effectively recover without any treatment.

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Acknowledgements

This work was financially supported by the Swedish Council for Forestry and Agricultural Research. The authors wish to express their sincere gratitude to Dr. Mihkel Vihur for assistance in collection of milk samples and to Dr. Ausleete Juhkam for assistance in bacteriological examination.

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Authors and Affiliations

  1. Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Estonian Agricultural University, Tartu, Estonia

    K. Kask

  2. Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala, Sweden

    H. Kindahl

  3. Swedish Association for Livestock Breeding and Production, Eskilstuna, Sweden

    H. Gustafsson

Authors
  1. K. Kask
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  2. H. Kindahl
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  3. H. Gustafsson
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Correspondence to K. Kask.

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Kask, K., Kindahl, H. & Gustafsson, H. Bacteriological and Histological Investigation of the Postpartum Bovine Uterus in Two Estonian Dairy Herds. Acta Vet Scand 39, 423–432 (1998). https://doi.org/10.1186/BF03547768

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Acta Veterinaria Scandinavica

ISSN: 1751-0147