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11 Cards in this Set
- Front
- Back
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E. Coli
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-peracute (60% occur in first 8 wks lactation)
-subclinical (change in SCC for example) -Chronic reccurent (5-10% after poor immune response to acute coliform episode) Coliform infection during dry period (estimated 50% aquired % established during dry period) |
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Klebsiella
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from damp sawdust bedding
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Pseudomonas
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contaminated water, udder wash, teat dip, dry cow tubes
Blue green colored secretions. TX poor b/c of resistance |
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Strep Ubris
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straw environments. hard, hot, swollen painful udders, pyrexia & systemic illness
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Bacillus species
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brewers grains, acute, secretions like port wine
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yeasts and moulds (candida and aspergillosis)
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contaminated water/udder washing
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Staph Aureus
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resevoir = udder
"peracute gangrenous mastitis" increase temp, heat, pain, redness, swelling. systemic illness. cold clammy udder w/ red brown secretions -acute mastitis - same/similar to others -chronic - decreased penetration of TX because of beta lactamase |
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Coagulase negative staphylococci (CNS)
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increase SCC and clinical mastitis during early lactation
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Strep Agalagtae
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very contagious, brought in milking cows, massive amounts of bacteria
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strep dysgalactae
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similar to environmental pathogen
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mycoplasma
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usually multiple quarters, hard udder, enlarged lymphnodes, watery and sand secretions.
*cull |
