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Fall 23: repro > Test 1: 9 pregnant cow 2 > Flashcards

Test 1: 9 pregnant cow 2 Flashcards

1
Q

clinical findings in cow that are supportive of pregnancy

A
  • no return to estrus
  • CL
  • progesterone
  • bPSP-B
  • uterine distension
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2
Q

clinical findings that prove pregnancy in cow

A
  • embyronic/fetal fluids
  • embryo/fetus proper
  • placenta
  • placentomes
  • embryonic/fetal HR
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3
Q

progesterone test is used in cows for

A

test if NOT pregnant- if low levels
* can rebreed cow

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4
Q

bPSP-B test in cows is used for

A

test if pregnant
* levels increase around 30 days
* blood test- not really used anymore
* levels stay high for 7 weeks postpartum (false positive)

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5
Q

when can you tell cow is preg using palpation vs US

A

palpation- 35 days- membrane slip and amniotic vessels
US- 25 days- fetal heart beat

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6
Q

on palpation when can you feel membrane slip

A

35 days

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7
Q

on palpation on cow when can you feel amniotic vessels

A

60 days

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8
Q

on palpation of cow when can you feel placentome

A

90 days

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9
Q

why induce abortion in cow

A
  • mismating
  • hydrops
  • maternal cardiac failure
  • breeding dates
  • retained fetal membranes
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10
Q

how to induce cow

A

need to lyse CL
* **prostaglandins **(PGF2⍺)- dinoprost, cloprostenol
* short acting corticosteroids- dexmethasone, flumethasone

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11
Q
A

hydrops allantois (hydrallantois)
* ↑ allantoic fluid after mid gestation- rapid and dramatic
* caused by placental dysfunction

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12
Q

which hydrops in cows is caused by abnormal placentation

A

hydrallantois (apple shape)
* cull cow
* very rapid and dramatic

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13
Q

cow with hydrops allantosis will present with

A

distended uterus/ abdomen
* anorexia, dehydration, constipation, recumbency
* uterus above pelvic floor
* difficult to palpate fetus

rapid and dramatic
caused by problem with uterus and placentation

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14
Q

can you rebred cow with hydrops allantosis

A

no- caused by problem with uterus/placentation

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15
Q

how to treat hydrops allantosis

A

drain slowly
supplement fluids
induce parturition/abortion
DO NOT REBRED

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16
Q

hydroamnios is caused by

A

abnormal fetus
* rare
* slow progression

17
Q

can you re breed a cow with hydramnios?

A

yes- caused by fetus abnormality

18
Q

how to treat vaginal prolapse in cow

A

clean and push back in- occurs in late gestation
* buhner technique
* avoid re-breeding- cull

19
Q

when can a uterine prolapse occur

A

early postpartum
* can see caruncles on endometrium

20
Q

what can cause uterine prolapse

A
  • excessive traction dystocia
  • uterine atony
  • hypocalcemia

postpartum condition

21
Q

when can uterine torsion occur in cow

A

stage 1 labor when calf is changing position
* large fetus
* male fetus
* prolonged gestation

22
Q

what are some predisposing factors of uterine torsion

A
  • large fetus
  • male fetus
  • prolonged gestation

can occur in stage 1 labor

23
Q

2 ways to try to fix uterine tosion

A

detorsion rod/bar
plank in the flank
surgery

24
Q

what is plank in the flank

A

trying to fix uterine torsion

25
Q

Yo u are contacted by a producer who is interested in synchronizing estrus in a group of beef heifers. Which of the following hormones is the most appropriate for this purpose?

a) FSH b) GnRH c) LH d) Oxytocin e) Prostaglandin

A

prostaglandin- will cause CL degrade which will allow for new cycle to start

26
Q

A 5-year-old Holstein cow that is 100 days in milk that has not been observed in heat is presented. On ultrasound exam, an anechoic structure 28 mm in diameter with a 6 mm-thick wall is observed in one ovary. Multiple follicles 3-8 mm are observed in the contralateral ovary. Which of the following is the most likely diagnosis?

a) Normal ovaries b) Granulosa cell tumor c) Ovarian teratoma d) Follicular cyst e) Luteal cyst

A

e) Luteal cyst

Fall 23: repro (21 decks)

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