Algunas propiedades enzimáticas en estafilococos aislados de muestras de leche procedentes de casos de mamitis y su relación con la producción de coagulasa, de termonucleasa y sensibilidad a la lisostafina

Authors

  • Benito Moreno García Universidad de León
  • María Luisa García López Universidad de León

DOI:

https://doi.org/10.18002/analesdeveterinaria.v24.9113

Keywords:

Estafilococo, Coagulasa, Termonucleasa, Lisostafina, Mamitis

Abstract

This work deals with the study of 57 strains of staphylococci which were isolated from clinical and subclinical cases of mastitis in cattle with special interest in the production of phosphatase, gelatinase and lysozyme. Egg yolk reaction is also studied. Results obtained are related to the production of coagulase, thermostable DNAse and sensitivity to lysostaphin.
A high percentage of the studied staphylococci produced phosphatase (91,2 %), gelatinase (84,4 %) and lysozyme (93 %). The comparison among the above properties and the production of coagulase, thermonuclease and sensi­vity to lysostaphin shows that relation is better with lysozyme and phospha­tase than with gelatinase.
lt has not been possible to find any relation between egg yolk reaction and production of coagulase, thermonuclease and lysostaphin sensitivity: only 45,6 % of the strains were classified as egg yolk positive.

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Published

1978-01-02

Issue

Section

Research papers