Comparing effects of freezing at -196 °C and -20 °C on the viability of mastitis pathogens

The aim of this study was to compare the effects of cryopreservation at approximately -196 °C in liquid nitrogen (N) and freezing at approximately -20 °C in a freezer, on the viability and survival of eight different mastitogenic bacteria inoculated in milk. Bacteria were frozen at approximately...

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Bibliographic Details
Main Authors: Inge-Marie Petzer, Joanne Karzis, Theodorus J. van der Schans, Johanna C. Watermeyer, Norman Mitchell-Innes, Stephanie Eloff, Geoffrey T. Fosgate
Format: Article
Language:English
Published: AOSIS 2012-02-01
Series:Onderstepoort Journal of Veterinary Research
Subjects:
Online Access:https://ojvr.org/index.php/ojvr/article/view/343