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Milk Plasmin, Antitrypsin, N-Acetyl-β-D-Glucosaminidase and Bacterial Growth in Lactoserum during the Early Post Partum Period

Mjölk plasmin, antitrypsin, N-acetyl-β-D-glucosaminidase och bakterietillväxt i lactoserum den första perioden postpartum

Acta Veterinaria Scandinavica volume 29, pages 145–150 (1988)Cite this article

Abstract

The activities of plasmin, N-acetyl-β-d-glucosaminidase (NAGase) and antitrypsin in milk were determined during 1 week post partum. The concentration of NAGase and antitrypsin in milk decreased significantly during this period. A slight decrease in plasmin activity was also seen. Replication rates of E. coli and S. aureus in lactoserum were also determined. Both test bacteria showed a tendency for increasing growth rates towards the end of the period. Growth of E. coli was significantly (p < 0.01) enhanced in day 2 samples as compared with samples collected during the first day post partum.

Sammanfattning

Aktiviteten av plasmin, N-acetyl-β-D-glucosaminidase (NAGase) och antitrypsin i mjölk bestämdes under 1 vecka efter kalvningen. Mjölkkoncentrationen av NAGase och antitrypsin minskade signifikant under denna period. En liten minskning i plasminaktiviteten kunde också ses. Replikationsgraden av E. coli och S. aureus i laktoserum bestämdes även. Båda testbakterierna visade en tendens till ökad replikation mot slutet av perioden. Tillväxten av E. coli var signifikant (p < 0.01) förhöjd i proven från dag 2 jämfört med proven som togs den första dagen postpartum.

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Authors and Affiliations

  1. The Department of Clinical Veterinary Medicine, Hautjärvi and Helsinki, College of Veterinary Medicine, SF-04840, Helsinki, Finland

    Satu Pyörälä & Liisa Kaartinen

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  1. Satu Pyörälä
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  2. Liisa Kaartinen
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Pyörälä, S., Kaartinen, L. Milk Plasmin, Antitrypsin, N-Acetyl-β-D-Glucosaminidase and Bacterial Growth in Lactoserum during the Early Post Partum Period. Acta Vet Scand 29, 145–150 (1988). https://doi.org/10.1186/BF03548364

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Acta Veterinaria Scandinavica

ISSN: 1751-0147