Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Horse Production > Stallion Mgt > Flashcards

Stallion Mgt Flashcards

1
Q

How are stallions and bulls different?

A

Stallions are chosen off of performance not fertility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Stallions reach puberty when? Sexual maturity?

A

P; 12-14 mo
S: 4-5 yo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the two types of artificial vaginas?

A

Missouri and colorado

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What things can be controlled during semen collection?

A

Temp, pressure, lubrication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Two ways to collect semen?

A

Off mare or off phantom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are good sperm handling techniques?

A

Warmth, protection from light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Need a ____ to calculate motility, and a ____ to determine concentration

A

Microscope
Sperm counter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Collection must haves

A

Consistency, manners, safety

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What do hobbles help with?

A

Kicking of mare

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What things are looked at during semen processing?

A

Volume, concentration, total sperm number, and progressive motility

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How is the total sperm number calculated?

A

Volume x concentration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Two ways to get concentration

A

Blue box (densimeter)
Hemacytometer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Inaccuracies of the densemeter (blue box)

A

Too diluted or too concentrated
Debris
Other cells
No extenders

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name 3 cooled semen extenders?

A

Protein, sugar, antibiotics
Sugars- sucrose, fructose, glucose
Antibiotics- penillion, gentacin, ticarcillin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is sperm categorized?

A

By defect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How to view sperm morphology?

A

Fixed in buffered formalin
Stain
Count 100 sperm
Oil emersion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Cause of abnormal heads?

A

Testicular issue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Cause of abnormal mid piece?

A

Testicular issue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Cause of detached head?

A

Storage issue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Bent tail cause?

A

Testicular issue or human error

21
Q

Causes of proximal or distal droplets?

A

Overuse of stallion or one that hasn’t collected in a while

22
Q

Coiled tail cause?

A

Testicular issue

23
Q

Timing of breeding for live cover/fresh?

A

48 hours before - 6 hours after ovulation

24
Q

Timing of breeding for cooled semen?

A

24 (48) hours before- 6 hours after

25
Q

Timing of breeding for frozen semen

A

12 hours before- 6 hours after

26
Q

How much sperm does the mare need for a standard insemination dose?

A

500 million progressively motile sperm

27
Q

When shipping how much sperm and why?

A

1 billion PM sperm since assume 50% motility loss in 24 hours

28
Q

Extend semen to ____sperm/mL

A

25-50 million

29
Q

Extend semen to ___% seminal plasma

A

5-20%

30
Q

Must have at least ___ dilution for optimal extension?

A

1:4

31
Q

Shipping of semen

A

5 C for temp; overnight or counter to counter

32
Q

What to do when you get the semen?

A

Want to see at least 500 million PM sperm
Warm sample for 15 min for analysis
Prep mare
Inseimate mare

33
Q

What is the industry standard for frozen stallion PM sperm?

A

Above 30% (very pitiful still)

34
Q

When using frozen semen what to expect

A

Shorter lifespan, breeding close to ovulation, lower pregnancy rate 50/50 shot

35
Q

Issues with low libido?

A

Posssibly not mature enough

36
Q

What is the most common problem in stallions?

A

Low libido

37
Q

How to help low libido?

A

Change environment, house them with mares, prolonged teasing, gnRh for a natural testosterone boost, testosterone (last resort)

38
Q

Why is giving testosterone the last resort for a low libido?

A

Aggression and shuts down the natural production

39
Q

What is a azoospermia?

A

No sperm in ejaculate, incomplete ejaculation

40
Q

Causes of a azoospermia?

A

Testicular degeneration, blockage, congenital abnormalities

41
Q

What is urospermia?

A

Urine in the sperm

42
Q

How is urospermia diagnosed?

A

Seminal plasma creative (urine test)

43
Q

How to help urospermia?

A

Urinate before collection
Needs imipramine (anti-depressant)
PPA

44
Q

What is hemospermia?

A

Blood in ejaculate

45
Q

Causes of hemospermia?

A

Penicillin neoplasia, urethral tear,

46
Q

What is oligiospermia?

A

Low total sperm number

47
Q

How to fix low total sperm number?

A

Centrifuge to help concentrate
Collect them less
Manage mare

48
Q

How to treat poor quality sperm?

A

Time
Processing techniques
Anti-oxidants
Find and correct cause
Mare mgt
Assisted reproduction

Horse Production (22 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions