Past Quizzes (Swine)

Question 1

define the term: gilt

Answer 1

a female pig who has never given birth

Question 2

define the term: sow

Answer 2

a female pig who has given birth

Question 3

define the term: barrow

Answer 3

a male pig who is castrated

Question 4

select one external anatomical part of the pig and describe a notable feature of your selection.

Answer 4

the tail – typically docked because there are no nerves on he end and other pigs will nibble on it

Question 5

T/F: pigs are fatter today than they were 50 years ago

Answer 5

false

Question 6

T/F: pigs can be used as biomedical models to explore various human diseases

Answer 6

true

Question 7

Which state has the highest total pig inventory?

Answer 7

Iowa

Question 8

define the term: farrow-to-finish

Answer 8

from the time the pig is born to slaughter

Question 9

define the term: SEW

Answer 9

Segregated Early Wean – the pigs are weaned early and may need supplemental diet

Question 10

A _________ is considered a terminal breed with a red body and lop ears

Answer 10

duroc

Question 11

A ____________ producer is focused on producing a terminally oriented animal while a _____________ producer focuses on producing elite breeding stock

Answer 11

commercial, seedstock

Question 12

What country is the world’s leading producer of pork?

Answer 12

China

Question 13

provide one benefit for confinement housing and one benefit for outdoor housing.

Answer 13

confinement – biosecurity
outdoor – nice market

Question 14

T/F: Missouri is in the top 10 producing states by pig inventory

Answer 14

true

Question 15

diagram a three breed terminal cross

Answer 15

A(maternal)+B(maternal)=AB(female) + C(terminal sire boar) = market animals

Question 16

Crossbreeding allows producers to capitalize on ____________, creating offspring that are better than the average of the two parents for the desired trait.

Answer 16

heterosis

Question 17

A ___________ will show more obvious physical signs of estrus such as reddening of the vulva, but a __________ is more distinct when displaying estrus behavior like locking up when in standing heat.

Answer 17

gilt, sow

Question 18

Which will reach sexual maturity at a younger age – a gilt or a boar?

Answer 18

gilt 5-8 months

(—> a boar is 7-9 months)

Question 19

Reproductive traits are described as a (highly/lowly) heritable trait while carcass traits are (highly/lowly) heritable traits

Answer 19

lowly, highly

Question 20

T/F: when a gilt’s reproductive tract is underdeveloped, the vulva tends to be much larger than that on a gilt with a fully developed reproductive tract

Answer 20

false

Question 21

T/F: exposing gilts to a boar can help the gilt reach puberty sooner

Answer 21

true

Question 22

provide the equation for heterosis

Answer 22

H.V. = ((F-Pavg)/Pavg) x 100

Question 23

define the term: farrowing crate

Answer 23

a housing unit/stall where a sow is taken to give birth and raise her piglets for about 3 weeks

Question 24

define the term: gestation stall

Answer 24

a housing unit/stall where gilts and sows are housed while pregnant / after insemination

Question 25

In what anatomical reproductive structure does the boar ejaculate in when breeding a sow or gilt?

Answer 25

the uterus – intrauterine insemination

Question 26

What breeding method is used most in the swine industry?

Answer 26

artificial insemination

Question 27

what are two parameters we evaluate when performing semen evaluation?

Answer 27

volume and concentration

other ex: motility and morphology

Question 28

provide one procedure we perform when processing piglets

Answer 28

ear notching

other ex: iron injection, teeth clipping, tail docking, castration

Question 29

When piglets are weaned they go to the ____________.

Answer 29

nursery

Question 30

Pigs have a ____________ gestation length.

Answer 30

114 day

Question 31

T/F: The boar has the greatest amount of total ejaculate volume compared to other livestock species

Answer 31

true