MT4 - Diseases caused by E. coli in poultry (W) Flashcards
Omphalitis is a frequent sign of Escherichia coli disease of day-old chicken
T
- navel inflammation (omphalitis),
- delayed absorption of the yolk sack
- diarrhoea
- die
Germinative infection does not occur in the case of e. coli diseases of poultry
F
horizontal, faeces, indirect infection, wounds
vertical: germinative
air sacculitis is common in the case of E. coli disease of poultry
T
Pericarditis and perihepatitis are frequent postmortem lesions caused by Escherichia coli in poultry
T
- haemorrhages
- enlarged lymph nodes
- pericarditis, perihepatitis, peritonitis (fibrinous)
Septicaemic escherichia coli strains are responsible for E. Coli diseases of poultry
T
Poor management can predispose to E. coli diseases of poultry
T
Enterotoxigenic Escherichia coli strains are responsible for coli-disease of poultry
F
extraintestinal E. coli strains = “ E. coli strains that cause infections outside the gastrointestinal tract.
Invasive Escherichia coli strains are responsible for E. coli diseases of poultry
T
Enterotoxigenic e.coli causes death in young chicks
F
is this T?
E. coli strains cannot cause germinative infection in chicken
F
E. coli strains cause generalized infection in day-old chicken.
T
E. coli can cause dead eggs
T
death or weak chicken will be hatched
E. coli can cause septicaemia in day-old chicken.
T
E. coli can cause air sacculitis in grower poultry
T
E. coli can cause embryonic mortality in poultry
T
E. coli can cause septicaemia in day-old chicken
T
E. coli can cause clinical signs only in chicken below of 2 weeks of age
F
E. coli disease of poultry is zoonotic.
F
Isolation of Escherichia coli from the faeces confirms diagnosis of coli septicaemia of poultry
F
isolation from bone marrow
Mycoplasma can predispose chicken to Escherichia coli infection
T
- management problems, overcrowding
- nutritional deficiencies
- other infections: mycoplasma, viruses
Escherichia coli can cause only local lessons in chicken, it cannot be generalized.
F
E. coli in chicken found worldwide.
T
Germinative infection occurs in case of E. coli disease in poultry
T
Enterotoxigenic E. coli strains can cause septicaemia in day old chicken
F
extraintestinal E. coli strains
Enterotoxigenic E. coli causes death in young chicks.
F
extraintestinal E. coli strains
E. coli kills the embryo in the egg.
T
embryonal infection
PO antibiotics via drinking water is a good way of treating E. coli in poultry
T
antibiotics in drinking water + treatment of primary agent (Mycoplasma)
E. coli disease in poultry mostly occurs in layers at beginning of egg-laying period
F
E. coli disease in poultry causes severe encephalitis in septicaemic form
F
Vaccines can be used for the prevention of E. coli disease in poultry.
T
E. coli strains cause generalized infection in day old chicken
T
Retarded absorption of the yolk sack is a post mortem lesion in coli-septicaemia in chickens.
F
Coli-diarrhoea of rabbits is typically seen in suckling animals
F
1-2 weeks old and after weaning (4-5 (12) weeks old)
Verotoxigenic Escherichia coli strains cause coli-diarrhoea of rabbits
F
enteropathogenic E. coli (EPEC)
High fibre content of the feed can prevent coli diarrhoea of rabbits
T
high fiber-contents (hay), low protein content of feed (<16%)
* gradual change of the food
* no vaccine on the market
Mucoid and watery diarrhoea are typical in the case of Coli Diarrhoea of Rabbits
T
diarrhoea (mucous, watery), anorexia, death
Enterotoxigenic E. coli strains are the causative agents of E. coli diarrhoea in rabbits.
F
enteropathogenic E. coli (EPEC)
Decreased fiber content of the food can predispose rabbits to E. coli diarrhoea
T
decreased fiber content, elevated pH
There is widespread vaccination in order to prevent E. coli diarrhea in rabbits
F
no vaccine on the market
Coli diarrhoea of rabbits is caused by enteropathogenic E. coli strains
T
Coli diarrhoea of rabbits is mainly seen in the first week of life
F
1-2 weeks old and after weaning (4-5 (12) weeks old)
Insufficient fiber content is a predisposing factor of coli diarrhoea of rabbits
T
Coli diarrhoea is prevented by widespread vaccination of the mothers.
F
no vaccine on the market
Enteropathogenic Escherichia coli strains can cause disease in rabbits
T
Insufficient amount of milk predisposes rabbits to coli-diarrhoea
F
decreased fiber content, elevated pH
Mucoid diarrhoea is a typical sign of coli-diarrhoea of rabbits
T
diarrhoea (mucous, watery). anorexia, death
Isolation of Escherichia coli from the faces of rabbits with diarrhoea confirms coli- diarrhoea.
T
isolation of E. coli (gut, mesenterial lymph nodes)
E. coli is not a normal inhabitant of the gut flora in rabbits.
T
