Flashcards in Reproductive diseases Deck (39)
Why does resorption occur before 30 days? Why does mummification occur after?
presence of bones
What are the clinical signs of parvo in pre-pubertal pigs?
What are the clinical signs of parvo in naive preg females?
embryonic death and fetal mummification
occurance of mummies of variable sizes
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
Why don't you typically see mummified fetuses larger than 17mm?
because after day 70 they are immunocompetent
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
How is parovirus controlled and prevented?
When should animals be vaccinated against parvo?
1. prior to breeding
2. after maternal antibody decay