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Flashcards in Reproductive diseases Deck (39)
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31

Why does resorption occur before 30 days? Why does mummification occur after?

presence of bones

32

What are the clinical signs of parvo in pre-pubertal pigs?

subclinical

33

What are the clinical signs of parvo in naive preg females?

embryonic death and fetal mummification
small litters
occurance of mummies of variable sizes

34

Why is there the occurrence of mummies of variable sizes with parvo infection?

because parvovirus spreads slowly in utero and sequentially kills fetuses of various ages and sizes UP TO DAY 70

35

Why don't you typically see mummified fetuses larger than 17mm?

because after day 70 they are immunocompetent

36

How is parvovirus diagnosed?

1. demonstration of antigen or DNA (several mummified fetuses--FAT or PCR)
2. serology--Hemagluttinin inhibition for exposure or maternal antibody decay

37

How is parovirus controlled and prevented?

1. vaccination--multivalent

38

When should animals be vaccinated against parvo?

1. prior to breeding
2. after maternal antibody decay

39

What does parvovirus vaccination prevent? What does it not prevent?

prevents fetal death not infection