Brainscape's Knowledge GenomeTM

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


See full index

Repro (LHW) > Basics/intro > Flashcards

Basics/intro Flashcards

1
Q

How long is bovine gestation?

A

283d

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

What type of breeders are cows?

A

Non-seasonal

Polyoestrus

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

How long is the oestrus cycle in cows?

A

21 days +/- 3

18-24d

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

How long is oestrus in a cow?

A

18 hrs

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

When does ovulation occur in cows?

A

24 hrs after start of oestrus

12-18 hrs after end of oestrus

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

How many days gestation is classed as abortion?

A

<270d

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

Should abortions be reported?

A

YES - always

To DEFRA/APHA

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

How long should you thaw an AI straw?

A

40 seconds

At 37 degrees

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

Which has more sperm in it - a sexed straw or non-sexed straw?

A

Sexed (2-4 million)

Non-sexed (10-12k)

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

What happens if a cow has AI too early?

A

Shorter lactation

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

What happens if a cow has AI in dioestrus?

A

Pyometra

Progesterone immunosuppressive

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

A fertile bull should get how many cows pregnant within what time frame?

A

90% of 50 healthy, cycling, disease free cows in 9 wks (90-9)
60% should be within first 3 wks

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

What is the rule of thumb when testing bull libido?

A

Should serve within 20 minutes (or ideally 10)

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

What gross motility score of semen is deemed acceptable?

A

3+

Ranges from 1-5

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

If a bull has some seminal abnormalities, is it acceptable to be used?

A

Yes - only if low number
Low numbers acceptable
(70% should be normal morphology)

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

What linear progressive score of bull semen (%) is deemed to be acceptable?

A

60+

17
Q

What minimum % of bull sperm should have normal morphology to be deemed acceptable?

A

70+

18
Q

What is used to stain sperm?

A

Nigrosine-eosin

19
Q

What is the circumference of a 2 year old bull scortum?

A

34cm

20
Q

Uterine torsion is usually in what direction?

A

Anti-clockwise

Stood behind cow

21
Q

How can you tell the difference between luteal and follicular cysts on ultrasound?

A 
Follicular = thick walled >3mm
Luteal = thin walls
22
Q

What is the treatment for follicular cysts?

A

Burst, GnRH, aspirate or leave alone

23
Q

If a cow comes into heat soon after treating a follicular cyst, should you serve it?

A

No

Cyst may have ovulated but is old and infertile - wait until next heat

24
Q

What is the treatment for a luteal cyst?

A

Prostaglandin

25
Q

What is endometritis?

A

Purulent uterine discharge after 21d postpartum

26
Q

What is metritis?

A

Enlarged uterus with purulent discharge within 21d postpartum

27
Q

What is pyometra?

A

Accumulation of purulent material within uterine lumen in the presence of CL and a closed cervix
(No discharge)

28
Q

Which repro problem of a bull can be diagnosed by preputial washes?

A

Campylobacter fetus veneralis

Repro (LHW) (9 decks)

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