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RUSVM Therio Practice Questions > Exam 1: Bovine Non-Infectious Infertility > Flashcards

Exam 1: Bovine Non-Infectious Infertility Flashcards

1
Q

After parturition, how long does uterine involution take?

A

25 - 50 days

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2
Q

Retained fetal membranes ______ uterine involution

A

delays

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3
Q

This is the most promising therapy to treat delayed uterine

involution but it is NOT approved in the US.

It is injected into the umbilical artery.

A

Collegenases

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4
Q

Delayed uterine involution is seen more in _______ cattle

due to decreased oxytocin release because their

calves are taken from them at birth and not suckling

every 3 hours (which stimulates oxytocin release)

A

dairy

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5
Q

Severe inflammation involving all layers of the uterus

A

metritis

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6
Q

Metritis occurs within _____ days post-calving

A

21

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7
Q

Puerperal metritis, which causes cows to

go off-feed, reduced milk, and fever (systemic)

occurs within ________ days post-calving

A

10

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8
Q

How do you treat metritis?

A

Systemic Abx: CEFTIOFUR (Excenel)

Chosen because NO MILK WITHDRAWAL required

Anti-inflammatory- Banamine

+/- Uterine Lavage

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9
Q

Inflammation of the endometrium extending

no deeper than the stratum spongiosum

A

Endometritis

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10
Q

Endometritis occurs more than ________ days post calving

A

21

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11
Q

What are the odds a cow will get endometritis

if they have retained fetal membranes?

A

34%

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12
Q

A cow with purulent vaginal discharge more

than 21 days post calving, with no systemic signs,

most likely has

A

endometritis

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13
Q

How is endometritis diagnosed?

A

With a Metricheck device.

If you see >50% purulent material 21 or more days postcalving,

=Score 3 Endometritis

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14
Q

How do you treat endometritis?

A

Systemic Abx-

Penicillin

Ceftiofur Sodium

Ceftiofur Crystalline Free Acid

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15
Q

This systemic Abx is not effective against endometritis

due to there being TONS of resistance to it in

food animals

A

Oxytetracycline

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16
Q

Which hormones can you use to treat endometritis?

A

PGF2a

Oxytocin

17
Q

Purulent exudate within the endometrial cavity

due to persistence of a CL that occurs when

metritis, endometritis, lochia, or other contents are present

and ovulation occurs resulting in CL formation

A

PYOMETRA

18
Q

In pyometra, uterine contents inhibit ______

and the CL is maintained

A

PGF2a

19
Q

Pyometra discovered after NATURAL breeding

is more likely due to this bacteria

A

Tritrichomoniasis

20
Q

How do you treat pyometra?

A

Remove the CL with PGF2a

21
Q

True anestrus is caused by insufficient ______ stimulus

A

hormonal

22
Q

How do you diagnose freemartinism in cows?

A

Probe the vagina and see it is

1/3 the length of a normal vagina

23
Q

Post-partum anestrus is most common in high

producing __ cows

A

dairy

24
Q

Post-service anestrus refers to an animal that

cycled initially, was bred, and then never cycled again.

The most common cause is

A

POOR NUTRITION

25
Q

Thin-walled fluid filled follicular structures

>25mm are called ____________

and are caused by a follicle that developed but was

never ovulated

A

Ovarian Follicular Cysts

26
Q

Ovarian Follicular Cysts persist for a minimum of

_______ days

A

10

27
Q

The primary sign of ovarian follicular cysts

A

Anestrus

(some show nymphomania)

28
Q

Cows with early ovarian follicular cysts

SELF RECOVER in _______% of cases

A

50

29
Q

What is the etiology of ovarian follicular cysts?

A

GnRH surge center that is refractory to estradiol stimulation

30
Q

Ovarian follicular cysts are also known as

A

Cystic Ovarian Degeneration (COD)

31
Q

A cow in anestrus that has a 2.5 cm large fluid filled

structure but there is NO CL, and it is there for 10 days

most likely has

A

Ovarian Follicular Cyst

32
Q

How do you treat ovarian follicular cysts?

A

GnRH/PGF2a

or

hCG/PGF2a

or

Progesterone (CIDR) then lyse

RUSVM Therio Practice Questions (21 decks)

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