Brainscape's Knowledge GenomeTM

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


See full index

Dairy Production > Repro Management > Flashcards

Repro Management Flashcards

1
Q

VWP

A

Voluntary waiting period

Calving until effort made to AI

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

DOPN

A

Days open

Calving to conception

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

CI

A

Calving interval

One calving to next

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

Location length for cows that fail to become pregnant

A

How much milk she gives over time

Function of peak milk and persistency

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

Benefits of improved repro performance

A

Lower average DIM- more milk/cow/day
Improved culling options
More calves/replacements produced
Avoidance of fat cow syndrome

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

Improved repro performance costs

A

More transition cows
Higher feed costs
Repro program costs

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

Repro management basic approaches

A

AI- rapid genetic progress, synchronization, less dangerous
Natural service- easier
Combo- clean up bull

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

Normal Inestrus period

A

18-25 d (21 heifer, 23 cow)

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

Standing estrus

A

5-8hrs
Differences due to milk production and how quickly estradiol is removed from circulation
Cows avg 6-9 mounts with 25sec standing/estrus
Stand better in dirt

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

Estrus detection

A

Watch for 30 min 3x per day
Kamar, estrus alert, heat watch
Pedometer, goner bull, chin-ball marker
Tail paint/chalk

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

IR

A

Insemination risk
Bred/eligible for breeding
35-70%, avg 48%, goal >65%

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

CR

A

Conception risk
Conceived/bred
25-45%, avg 33% Goal is >40%

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

Pregnancy rate

A

Pregnant/eligible per 21d period

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

Poor display of estrus

A

High milk prod associated with shorter, less intense displays of estrus

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

Challengers with low conception risk

A

CR in lactating cows 1/2 of heifers (35 v 60%)

High milk prod reduced CR

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

Challenges for repro

A

Poor display of estrus
Low conception risk
Prolonged a estrus
Embryonic/fetal wastage

17
Q

Primary bottleneck to improving reproduction

A

Low insemination intensity

18
Q

GnRH

A

Factrel
Induces ovulation/lute ionization of dominant follicle
Initiates new follicular wave by remove influence of current dominant follicle

19
Q

hCG - human chorionic gonadotropin

A

LH like - induce ovulation of responsive follicle

20
Q

Estrogen

A

Illegal in dairy cows, no longer commercially available

21
Q

PGF2a

A

Lutalyse

Removes CL-drop in progesterone

22
Q

Progestagens

A

CIDR

Mimics presence of CL

23
Q

Ovsynch

A

0-GnRH, removes dominant, new wave
7-prostaglandin, removes CL, mat of dominant
56h later- GnRH, ovulation of dominant (28h)
12-16h- TAI

24
Q

PR

A

Pregnancy rate
Pregnant/eligible for 21 d
12-18%, 16%, goal >24%

25
Q

PR influenced by

A

Insemination risk- cyclicity, detection, TAI protocols

Conception risk- detection, semen, health of repro tract

Dairy Production (6 decks)

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