Qs Flashcards

1
Q

Minimum bovine sperm motility

A

30%

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2
Q

Minimum bovine sperm morphology

A

70%

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3
Q

What will determine when a cow gets pregnant?

A

Length of VWP
Conception rate
Estrus detection rate

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4
Q

At 50% estrus detection rate, what give higher pregnancy rate: Ovsynch or two PGF2alpha?

A

Ovsynch

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5
Q

What hormone lyses CL?

A

PGF2alpha

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6
Q

What can bull scrotal circumference indicate?

A

Earlier puberty in offspring
Higher sperm count
Daughters with more active ovaries (in litter-bearing animals)

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7
Q

What is the most common type of ovarian tumor in cows?

A

Granulosa cell tumor

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8
Q

What is the treatment for granulosa cell tumor?

A

surgery

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9
Q

What is early stage treatment for equine paraphimosis?

A
Replace in preputial cavity
Hydrotherapy
Local ointments
Antibiotics
NSAIDs
Massage
Allow horse to exercise
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10
Q

Total sperm number =

A

concentration (sperm/mL) x volume (mL)

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11
Q

Minimum sperm to pass equine BSE

A

1 billion progressively motile, morphologically normal sperm

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12
Q

Black looking stain for equine sperm

A

Eosin-nigrosin

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13
Q

Primary sperm abnormalities in horse

A

involve seminiferous tubule

Secondary sperm abnormalities happen in epidiymis

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14
Q

Do we measure scrotal circumference in horses?

A

no

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15
Q

In horses, what correlates with sperm production?

A

Scrotal width

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16
Q

Most important factor affecting pregnancy rate

A

Breeding management

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17
Q

What hormone is secreted from dominant follicles in mare?

A

Estrogen

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18
Q

What hormone causes luteolysis? Where is it secreted from?

A

Prostaglandin from endometrium

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19
Q

What are two signs of estrus in mare?

A

Follicle around 45mm

Uterine edema

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20
Q

Breed as close to ovulation as possible

A

Yep

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21
Q

At what days can you diagnose twins in horse with ultrasound?

A

Day 13-15

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22
Q

At what day can you hear embryonic heartbeat in horse?

A

Day 24

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23
Q

How to manage twin pregnancy at day 13-15?

A

Manual embryo crush (90% success)

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24
Q

What forms secondary to corpus lutea?

A

Endometrial cups

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25
How to differentiate pregnant uterus from bladder?
Palpate back to closed cervix
26
Palpating a mare at 150 days: You will NOT feel what?
Membrane slip
27
Accessory sex gland in bull with bi-lobed character?
Seminal vesicles
28
Loss of bi-lobed character of seminal vesicle in bull
abnormal
29
What is NOT a cause of bovine anestrus?
Retained placenta | Uterine prolapse
30
What are causes of bovine anestrus?
Pyometra Presence of suckling calf pregnancy negative energy balance
31
What is the recommended treatment of cystic follicular degeneration in cattle?
100mcg GnRH Timed insemination with Ovsynch GnRH followed by PGF2alpha 7-10days later Exogenous progesterone from CIDR
32
What is not an effective treatment strategy for bovine pyometra?
Exogenous PGE | PGF2alpha is the treatment
33
What do you retract in bovine palpations?
Ventral intercornual ligament
34
What is the accessory sex gland in the bull that is most commonly affected by infectious/inflammatory disease?
Seminal vesicle
35
The efficacy of estrus detection can be monitored using what?
Determination of heat detection index
36
The primary sign of estrus in cow
Standing to be mounted
37
Aborted fetus is size of rat. What stage of gestation?
3 months
38
How can you differentiate an early pregnancy from pyometra, hydrometra, or mucometra?
Fetal membrane slip
39
The accuracy of estrus detection can be monitored using what?
Determination of progesterone concentrations in milk or blood
40
Retention of bovine fetal membranes is NOT associated with which condition?
Hydrops amnii
41
You determine cows are pregnant but client says they were in estrus today. What is the next step?
Re-examine these cows to determine their pregnancy status
42
What stage is fetal mummification most common in cows?
2nd trimester
43
Is the cow systemically ill with pyometra?
no
44
What condition affecting prepuce/penis of bull is NOT a congential abnormality?
Preputial detachment
45
Hematoma of penis usually caused by what?
Tearing of tunica albuginea during erection
46
Where does the tear happen in penile hematoma in bull?
Near the distal curve of the sigoid flexure of the penis
47
Do eCG levels decline in the case of fetal death?
No
48
What hormone is produced by endometrial cups?
eCG
49
During pregnancy, what also secretes progesterone?
Accessory corpora lutea
50
What day are you able to identify genital tubercle in horse?
60-70
51
Fetal sexing cannot be done before what day?
50
52
What is ultrasound used for in pregnant mares?
Monitoring the CTUP Measuring fetal orbit to determine length of gestation Monitoring fetal activity and evidence of stress Determining the presence of twin conceptus at any stage of gestation
53
Equine semen maintains viability and the ability to fertilize an egg for up to ____ hours when stores at 5 degrees C
48
54
What timed AI protocol with frozen equine semen results with highest preg rate?
Ovulatory agent - 24 hours later TAI - second AI at 40 hours Mare must have 35mm follicle
55
What does the routine BSE of mare NOT include?
Taking blood samples for CBC and chemistry
56
Relaxed, wide cervix and flattened, edematous uterus in mare is characteristic of what stage of estrous cycle?
Estrus
57
Which structure CANNOT be accurately detected using transrectal ultrasonography?
Consistency of ovarian follice
58
Where to take swabs from to determine bacterial infections in stallion?
``` Fossa glandis Body of penis Prepuce pre-ejaculatory urethra Post-ejaculatory urethra semen ```
59
T/F: Breeding soundess evalution in the stallion determines exact stallion fertility
false
60
Where is the tail of the epididymis located in stallion?
Caudally
61
A stallion characterized as satisfactory breeding prospect should be able to
get a minimum of 60% pregnancy rate per season of 40 mares by natural service and 120 mares by AI