Swine 1

Question 1

Define farrow.

Answer 1

To give birth to a litter - the process of parturition

Question 2

Define weaning.

Answer 2

The separation of piglets from the sow

Question 3

Define gilt.

Answer 3

Female pig that has not farrowed a litter

Question 4

Define sow.

Answer 4

Female after birth of first litter

Question 5

Define boar.

Answer 5

Mature intact male

Question 6

Define parity.

Answer 6

Used to measure sow age or longevity - equal to the number of litters that the sow has farrowed

Question 7

What is the BCS scale in swine?

Answer 7

1- emaciated

2 - thin

3 - ideal

4 - fat

5 - obese

Question 8

What is the length of estrus in the swine?

Answer 8

2-3 days

Question 9

What is the duration of the estrous cycle in swine?

Answer 9

18-24 days (21 day average)

Question 10

What is the length of gestation in swine?

Answer 10

114 days (3 months, 3 weeks, and 3 days)

Question 11

When does the age of first estrus typically occur in the gilt?

Answer 11

180-210 days

Question 12

What is the weaning to breeding interval in swine?

Answer 12

5-7 days

Question 13

What is the average total litter size for swine?

Answer 13

>12.5

Question 14

What is the average ‘total born alive’ number in swine?

Answer 14

>11.5

Question 15

How many pigs are weaned per litter typically?

Answer 15

>10.0

Question 16

Are swine seasonal breeders?

Answer 16

no

Question 17

a.

Answer 17

115 day gestation length

Question 18

b.

Answer 18

farrows

Question 19

c.

Answer 19

21 day lactatio length

Question 20

d.

Answer 20

weaned

Question 21

e.

Answer 21

3-7 day wean to estrus interval

Question 22

f.

Answer 22

165 day growth period

Question 23

g.

Answer 23

Moved into a breeding herd as a replacement gild

Question 24

h.

Answer 24

Sold to terminal markets (270-280 lbs)

Question 25

i.

Answer 25

210 days or 280 lbs

Question 26

j.

Answer 26

Gilts are breed eligble on 2nd estrus

Question 27

Highest health status indicates highest \_\_\_\_\_\_\_.

Answer 27

Biosecurity

Question 28

How are boars usually housed?

Answer 28

Individually similar to gestation stalls

Question 29

How often are boars collected for AI?

Answer 29

3 times every 2 weeks - every 4-5 days

Question 30

If semen is not used, what should be done to the boars?

Answer 30

They should be collected weekly to promote good ejaculates in the future

Question 31

Pooled semen involves semen of how many boars?

Answer 31

3-5 boars

Question 32

What is the point of pooling system?

Answer 32

Reducing the impact of sub-fertile boar that was not assessed by motility/morphology

Question 33

What temperature is crucial during collection and processing of semen?

Answer 33

35 degrees C

Question 34

What temperature is crucial for storage of boar semen?

Answer 34

16-18 degrees C

Question 35

What are you looking for to determine quality control of semen pre-extension?

Answer 35

Motility, morphology, contamination, and clumping

Question 36

What is the acceptable motility of boar sperm?

Answer 36

\>70% of the sperm are moving

Question 37

What is the exceptable amount of normal morphology in boar sperm? How many should you observe?

Answer 37

Observe 25-50 sperm - acceptable is \>70%

Question 38

What are some abnormalities found in boar sperm?

Answer 38

Distal midpiece reflex, proximal droplet, distal droplet, bent/coiled tails, and other

Question 39

What factors affect boar fertility?

Answer 39

Age, frequency of use, nutrition, environmental factors, and health status

Question 40

Do boar or sow farms have more biosecurity?

Answer 40

Boar farms

Question 41

What is the protocol for biosecurity in sow farms?

Answer 41

Still shower in and shower out

Question 42

What is the purpose of sow farms?

Answer 42

To produce wean pigs for finishers

Question 43

Where are sows housed in sow farms?

Answer 43

In gestation crates or group housing

Question 44

Where are sows moved to farrow?

Answer 44

to farrowing crates - organized from youngest to oldest

Question 45

After weaning, where are sows moved?

Answer 45

To a breeding barn to start a new rotation