ARTIFICIAL INSEMINATION OF THE PIG Flashcards Preview

Farm animal production midterm 1 > ARTIFICIAL INSEMINATION OF THE PIG > Flashcards

Flashcards in ARTIFICIAL INSEMINATION OF THE PIG Deck (60)
Loading flashcards...
1

BOAR SPERM PARAMETERS: volume of ejaculation

200 ml (50-500)

2

BOAR SPERM PARAMETERS: Number of sperm per ejaculate

50-60 billion (2-200) (breeding boar can exceed)

3

BOAR SPERM PARAMETERS:Sperm concentration in AI dose

Ca 30,000,000/ml (2-4 billion)

4

BOAR SPERM PARAMETERS:Number of sperm per AI dose

2-4 billion

5

BOAR SPERM PARAMETERS:Number of AI doses per ejaculate

20-30

6

BOAR SPERM PARAMETERS: Frequency of sperm recovery

2 times a week max

7

What are the major risks of AI?

all listed advantages are turning to opposite and generate huge harm.

8

Major advantages of artificial insemination:

-Genetic improvement and introduction of new genetics.
-Use of male with desirable genetic markers
-Permits crossbreeding
-Transport over long distance by cooling to 16 degrees
-Availability of accurate breeding records
-Control of venereal diseases
-Economic service
-Essential after synchronization of estrus in large animal groups – group wise management in production farms
-Useful research tool for investigation in male and female reproductive physiology
-Safety for eliminating dangerous males

9

Boar: sow ratio

+/- 1:25 – 1 boar for 20-30 sows

10

Minimum age of breeding

7,5 to 11 months depend on breed

11

Mating frequency (maximum)

2 times per week

12

Methods of semen collection:

Artificial vagina
Gloved-hand-method
Electroejaculation
Boar training

13

Artificial vagina:

– not typical
Inability to observe penis and secretions

14

Gloved-hand-method:

Gloved-hand-method: easy observation of penis and seminal fluid possible

15

Electroejaculation:

Electroejaculation: used exceptionally only under general anaesthesia (risk!)

16

Boar training

first on female, then on phantom treated with boar scent – can be dangerous

17

AI: US-BAG METHOD

Disposable, aseptic
Built in filter
Dilution in the bag
Equipped with dispensing connector

18

Macroscopic qualitative and quantitative metods:

volume, colour, smell

19

Microscopic qualitative and quantitative metods:

concentration, motility, morphology

20

QUALITY PARAMETERS FOR SEMEN: Volume (with gel mass)

100 to 300 ml

21

QUALITY PARAMETERS FOR SEMEN: Motility at time of collection

Min 70%

22

QUALITY PARAMETERS FOR SEMEN: Concentration

Min 10^8 sperm cells per ml

23

QUALITY PARAMETERS FOR SEMEN: Abnormal sperm cells

< 20%

24

QUALITY PARAMETERS FOR SEMEN: One AI dose: =

One AI dose: =/> 2x10^9 motile sperm cells and =/> 80 ml
Head abnormalities are more important than that of the tail

25

NORMAL BOARS EJACULATE: What is the normal and limit values of Total sperm number (billion)

Normal :10-100
Limit: 10

26

NORMAL BOARS EJACULATE: What is the normal and limit values of Progressive motility %

Normal :70-90
Limit:70

27

NORMAL BOARS EJACULATE: What is the normal and limit values of Ejaculation volume ml

Normal :100-500
Limit:50

28

NORMAL BOARS EJACULATE: What is the normal and limit values of Abnormal sperm heads %

Normal :2-5
Limit:10

29

NORMAL BOARS EJACULATE: What is the normal and limit values of Proximal cytoplasmic droplets %

Normal : 1-5
Limit: 5

30

NORMAL BOARS EJACULATE: What is the normal and limit values of Acrosome abnormalities %

Normal :1-2
Limit:5