FAC44: The Pregnant Cow Flashcards
What is normal gestation of a cow is ?
280-285 days
What do cotyledonary attachments attach?
Between placental cotyledons and uterine caruncles
At what point are placentomes palpable?
3 months gestation
What is the key source of progesterone?
CL until 120-150 days
Adrenals and placenta beyond 150 days
How do you terminate a pregnancy before day 150? after?
Before 150: prostaglandin
After 150: corticosteroids and PG
What are the possible consequences of fetal death in utero?
- Abortion with no associated problems
- Fetal mummification
- Fetal maceration
- Pyometra
Describe the aetiology of fetal mummification?
Fetal death, CL maintained and cervix remains closed
Fetal fluids are gradually resorbed and fetus preserved in a mummified state
How do you treat a mummified fetus?
Try prostaglandin injection
May need manual assistance
Luteolysis may occur but failure of expulsion
What happens during fetal maceration?
Fetal death > cervix partially dilates > decomposition proceeds
How to deal with fetal maceration?
Best to cull
What ist he cause of pre-partum metritis/emphysema?
Due to dystocia or abortion agent causing fetal death
How do you treat pre-partum metritis/emphysema?
Remove her vaginum
What is the cause of hydramnios?
Associated with fetal abnormality
What is the cause of hydrallantois?
Associated with placental abnormalities
When does hydrallantois occur?
Last 2 months of gestation