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21 Cards in this Set
- Front
- Back
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Clostridium perfringes
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Thick rods
Don't form spores readily in acid media Double zone hemolysis Litmus milk - weird |
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Clostridium chauvoei
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Ruminants - Blackleg
Large rod Single/short chains from infection sites More fastidious growth Habitat - Intestinal tract, in soil as spores |
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Clostridium septicum
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Long chains in tissues
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Pasteurella multocida
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Small coccobacillus
Bipolar w/ Giemsa/Wright stain Capsule Mucoid Musty odor No hemolysis, agar discolored green in older colonies Lactose neg, indole +, urease neg |
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Pasteurella typing
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A - very mucoid, most common
B/E - less mucoid D: smaller colonies, non-mucoid |
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Mannheimia hemolytica
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Small coccobacillus
Less fastidious than P. multocida, smaller colony Hard to grow on MacConkey No Mmusty odor Hemolytic, often narrow complete zone Lactose +, Indole neg |
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Actinobacillus lignieresii
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Grows better w/serum in media/10% CO2
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Actinobacillus equuli
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Normal media, abundant growth
Slimy/mucoid Non-hemolyic, except for subspecies haemolytica |
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Actinobacillus pleuropneumoniae
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V Factor needed
Hemolytic Small colonies Dies out quickly on BAP |
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Actinobacillus suis
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Beta hemolytic
Small colonies, can become relatively large No nurse needed Grows on MacConkey |
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X Factor
V Factor |
Hemin - in blood
Nicotine adenine dinucleotide |
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Haemophilus
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"Blood loving"
Small gram-neg rods Oxidase + Many need hemin, NAD, serum, CO2 |
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Haemophilus parasuis
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Needs NAD - Staph nurse
Small, translucent colonies |
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Haemophilus paragallinarum
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V Factor, 1% NaCl needed
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Histophilus somni
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Small coccobacillus
Doesn't need X/V Factor Needs unknown factors in blood/yeast - 10% BAP w/yeast extract best Needs CO2 Non-hemolytic |
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Taylorella equigenitalis
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Short gram neg rods
CO2, up to 15 days Pinpoint colonies |
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Bordetella bronchiseptica
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Small gram neg rod
Pinpoint colonies at 24, 2m at 48hr Hemolytic Grows on Mac Litmus milk - alkaline Urease +, Citrate +, H2S neg, Indole neg |
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Dichelobacter nodosus
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Obligate anaerobe
Needs 10% horse serum Stimulated by powdered sheep hoof/horn |
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Brucella abortus
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CO2 on primary isolation
Stimulated by erythritol |
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Bordetella avium
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Turkeys
Small at 24 hrs, 2mm at 48 Non-hemolytic Urease neg |
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Moraxella bovis
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Short rods/cocci
1mm BAP at 48hr Oxidase +, non fermentative, alkaline litmus milk Corrodes agar |
