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Milk whey induction of agglutination in ovine and bovine mastitis Staphylococcus aureus

AuthorsBaselga Domingo, Rafael ; Amorena Zabalza, Beatriz
KeywordsStaphylococcus aureus
Staphylococcal Infections
Sheep Diseases
Dairy Products
Mastitis, Bovine
Issue Date1990
PublisherBlackwell Publishing
CitationZentralblatt fur Veterinarmedizin. Reihe B. Journal of Veterinary Medicine. Series B 37 (7): 556-560 (1990)
AbstractA total of 59 mastitis staphylococcic strains were tested for growth agglutination upon supplementation of growth media with ovine and bovine milk whey and mammary secretions from dry cows. Differences were observed when comparing bacterial species or origins (ovine vs. bovine) of bacteria and whey. All of the ovine and bovine S. aureus strains tested, but only 4 among 22 other ovine mastitis staphylococcic strains, showed growth agglutination in Todd Hewitt broth (THB) supplemented with greater than or equal to 30% (v/v) ovine milk whey. None of the strains agglutinated during growth in regular THB medium. Ovine whey had an agglutination induction capacity higher than bovine whey (P less than 0.005), concerning the number of responsive ovine and bovine S. aureus strains. There were no differences between whey samples from different ewes with regard to their capacity to induce agglutination. Ovine S. aureus strains were more responsive than bovine strains of this bacterial species, concerning the number of responsive strains (P less than 0.001) to bovine whey (greater than or equal to 30% in THB), the proportion of responsive strains at low (10%) ovine whey concentration (P less than 0.001), and the strength of reaction (precipitation timing and clump size). Secretions from dry cows systematically induced agglutination in all of the bovine and ovine S. aureus strains tested.
Publisher version (URL)http://dx.doi.org/10.1111/j.1439-0450.1990.tb01096.x
Identifiersdoi: 10.1111/j.1439-0450.1990.tb01096.x
issn: 0514-7166
Appears in Collections:(EEAD) Artículos
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