Estrus Detection and Artificial Insemination Flashcards Preview

CTC Junior Vet science > Estrus Detection and Artificial Insemination > Flashcards

Flashcards in Estrus Detection and Artificial Insemination Deck (16)
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1
Q

Natural Insemination

A

Deposition of semen by male into reproductive tract of a receptive female under normal body conditions

2
Q

Artificial Insemination

A

Deliberate introduction of semen into a female for purpose of fertilization by means other than ejaculation directly into the vagina

3
Q

Capacitation

A

Change undergone by sperm in female reproductive tract enables them to penetrate and fertilize an egg

4
Q

Ways to detect estrus

A

Visual
Teaser animals
Marker aids

5
Q

Visual estrus detection

A
30 minutes in morning and evening 
Swollen vulva 
Mucus 
Standing to be mounted 
Mounting other animals
6
Q

Teaser animal estrus detection

A
Surgically altered (vasectomized / Gomer bull) 
Androgenized cows/steers
7
Q

Marker aid estrus detection

A

Chin ball marker
Heat- mount detectors
Chalk/paint tail head

8
Q

Advantages of Artificial Insemination

A

Genetic improvement through increased use of superior sires
Disease control
Eliminates need for keeping bulls
Improving record keeping

9
Q

Disadvantages of Artificial Insemination

A

Time required to detect estrus
Percent of cows in estrus during breeding season
Trained personnel required
Over use of inferior bulls

10
Q

Major Steps of AI

A

Collect sperm for the male
Preserve and extend sperm
Insemination of the female

11
Q

Ways to collect semen

A

Artificial vagina

Electro ejaculation

12
Q

Artificial vagina

A

Device that simulates vaginal conditions of a female in estrus

13
Q

Electro Ejaculation

A

Electrical stimulation of the accessory sex glands and pelvic urethra resulting in ejaculation

14
Q

When is electro ejaculation used

A

in males of high genetic value that cannot physically perform mounting and ejaculation

15
Q

Extender

A

Solution in which spermatozoa are diluted and extends number of sperm and function

16
Q

Good seminal extenders must

A
Minimum cold damage 
Provide nutrients 
prevent microbial growth 
maintain viability 
low in cost

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