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Alimentary > Production Animal Diarrhoea > Flashcards

Production Animal Diarrhoea Flashcards

1
Q

List 3 factors involved in calf diarrhoea…

A

Pathogens
Stress/immunity
Environment and management

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2
Q

List 6 pathogens responsible for calf diarrhoea

A 
E. coli
Rotavirus
Coronavirus
Cryptosporidium
Salmonella
Coccidia
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3
Q

What proportion of calves do not get enough colostral protection?

A

Half

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4
Q

How many grams of traditional milk replacer are required per litre of water?

A

125g

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5
Q

Describe how much milk replacer is given to each calf and how often…

A

2 litres BID

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6
Q

What is colisepticaemia?

A

E. coli in the blood stream

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7
Q

What is ETEC?

A

Enterotoxic E. coli

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8
Q

What is STEC?

A

Shiga toxin-producing E. coli

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9
Q

Why must the presence of E. coli in a faecal sample of a cow be handled with care?

A

All faeces will grow E. coli when cultured

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10
Q

Describe scours

A

Watery diarrhoea caused by ETEC

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11
Q

What age of calves are effected by ETEC?

A

3 days - 3 weeks

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12
Q

Give the 2 pathogenic factors of ETEC

A

Adhesive fimbrae

Enterotoxin

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13
Q

Describe the clinical signs of STEC in calves…

A

Diarrhoea

Haemorrhagic colitis

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14
Q

What age of calves does rotavirus infect?

A

1 - 3 weeks

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15
Q

Which parts of the gut does rotavirus infect?

A

Duodenum and jejunum

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16
Q

What age of calves does coronavirus infect?

A

Slightly older that rotavirus

17
Q

Which parts of the gut does coronavirus infect?

A

Ileum, caecum and colon

18
Q

Describe the clinical signs associated with Salmonella in calves..

A

Systemic illness

Pyrexia

19
Q

Describe the faeces of a calf with coccidiosis…

A

May be bloodstained

20
Q

Describe subclincal coccidiosis in calves…

A

Gives poor thrift

21
Q

Give 5 common causes of diarrhoea in adolescent cows…

A 
Endoparasites
Rumen acidosis
Salmonella
Nutrition
Post-weaning scours
22
Q

Give 3 common causes of diarrhoea in adult cows….

A

Johne’s disease (MAP)
SARA
Salmonella

23
Q

Describe the diarrhoea in a cow with Johne’s disease…

A

Hosepipe

24
Q

What is MAP?

A

Mycobacterium avian paratuberculosis

25
Q

Describe a clinical case of a cow infected with MAP

A

Severe diarrhoea
Weight loss
Adult cows infectious

26
Q

How would you treat a cow with MAP?

A

You don’t - no cure. Euthanasia

27
Q

How is MAP diagnosed?

A 
Blood test (ELISA)
Milk test
28
Q

What are the causes of acute and chronic diarrhoea in adult cows?

A 
Acute:
Salmonella
Winter dystentry (corona)
Fluke
Acidosis

Chronic:
Johne’s
Ostertagiosis

Alimentary (14 decks)

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