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Bacteriology > Lab 8- Mannheimia + Bibersteinia > Flashcards

Lab 8- Mannheimia + Bibersteinia Flashcards

1
Q

Habitat

A

Mucous membranes

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2
Q

Morphology

A

0,5-2 um coccoid rods

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3
Q

Staining

A

Gram negative

Bipolar

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4
Q

Culture

A

Fastidious

Yeast extract, blood, ph-susceptibility

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5
Q

Hemolysis?

A

Yes,

Beta hemolysis

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6
Q

Biochem

A

Catalase +
Oxidase +
Fermentative
Leucotoxin production (cytotoxin)

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7
Q

Antigens

A 
Cell wall (cross reactions)
Capsule - used for identification
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8
Q

Subspecies

A

M. Heamolytica

B. Trehalosi

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9
Q

Capsule types

A

M. Haemolytica 12 types

B. Trehalosi 4 types

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10
Q

Resistance

A

Weak

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11
Q

Pathogenicity m. Haemolytica ?

A 
Ru= pneumonia, mastitis, arthritis 
Lamb= septicaemia
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12
Q

Pathogenicity b. Trehalosi?

A

Lambs= acute systemic pasteurellosis of feedlot

> 3 m of age

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Bacteriology (81 decks)

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