FAC44: The Pregnant Cow Flashcards

1
Q

What is normal gestation of a cow is ?

A

280-285 days

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2
Q

What do cotyledonary attachments attach?

A

Between placental cotyledons and uterine caruncles

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3
Q

At what point are placentomes palpable?

A

3 months gestation

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4
Q

What is the key source of progesterone?

A

CL until 120-150 days

Adrenals and placenta beyond 150 days

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5
Q

How do you terminate a pregnancy before day 150? after?

A

Before 150: prostaglandin

After 150: corticosteroids and PG

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6
Q

What are the possible consequences of fetal death in utero?

A
  • Abortion with no associated problems
  • Fetal mummification
  • Fetal maceration
  • Pyometra
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7
Q

Describe the aetiology of fetal mummification?

A

Fetal death, CL maintained and cervix remains closed

Fetal fluids are gradually resorbed and fetus preserved in a mummified state

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8
Q

How do you treat a mummified fetus?

A

Try prostaglandin injection

May need manual assistance

Luteolysis may occur but failure of expulsion

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9
Q

What happens during fetal maceration?

A

Fetal death > cervix partially dilates > decomposition proceeds

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10
Q

How to deal with fetal maceration?

A

Best to cull

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11
Q

What ist he cause of pre-partum metritis/emphysema?

A

Due to dystocia or abortion agent causing fetal death

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12
Q

How do you treat pre-partum metritis/emphysema?

A

Remove her vaginum

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13
Q

What is the cause of hydramnios?

A

Associated with fetal abnormality

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14
Q

What is the cause of hydrallantois?

A

Associated with placental abnormalities

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15
Q

When does hydrallantois occur?

A

Last 2 months of gestation

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16
Q

How do you treat hydrallantois?

A

May go to term with no problems

May need to be induced (dexamethasone/PG)

Assistance may be required due to uterine inertia

May require surgery (if cow becomes recumbent or anorexic) - drainage of fluid and removal of foetus by caesarian

17
Q

What is the cause of hydrocephalus?

A

Abnormal CSF ciruclation

18
Q

What is fetal anasarca?

A

Grossly swollen foetus due to subQ fluids

19
Q

How do you treat fetal ascites?

A

Will cause dystocia - may require embryotomy or caesarian

20
Q

How do you treat a prolapsed cervix/vagina?

A

Need to replace and retain until calving

Use epidural anaesthetic and Buhner suture