alfatoxicosis Flashcards
0
Q
alfatoxin is named after which species
A
A. flavus
1
Q
which 3 species produce alfatoxin
A
aspergillus flavus
a. parasiticus
penicillium puberulum
2
Q
ducks are ____ times more sensitive then chicken
A
10
3
Q
pathogenesis
A
- bind to DNA & RNA
- decrease cell mediated immunity
4
Q
main symptoms of alfatoxicosis
A
- reduced egg production(due to blocking of ova maturation)
- decrease in resitance to infections
- anaemia
- decrease coagulation of blood
5
Q
main lesions of alfatoxicosis
A
- enlargement(liver,kidney,spleen)
- atropy(bursa,thymus,testis)
6
Q
how alfatoxin damages coagulation in chicken
A
damages prothrombin(hence bruises common after injury)
7
Q
what is the response of body to aflatoxin induced anaemia
A
extramedullary haematopoiesis in liver
8
Q
do alfatoxin acumulate in body?
A
no, it is rapidly excreted
9
Q
ppm and effects of alfatoxin
A
0.5=failure of pigmentation,increased bruising
1=decreased growth
2=hatchability of eggs reduced
