CHAPTER3 (INUMERATION)

Question 1

General selection of pigs based on Physical

Answer 1

1. Strong legs
2. Long body
3. Good body conformation

Question 2

General selection of pigs based on Performance

Answer 2

1. Mothering Ability
2. Average Daily Gain
3. Backfat thickness

Question 3

Selection of boars based on physical

Answer 3

1. Select boars that are masculine with well developed testicles of about the same size
2. Select boars that possess strong constitution and high libido, but controlled temperament
3. Select boars with no physical and hereditary defects such as hernias, undescended testes, and blind or inverted teats

Question 4

Selection of boars based on Performance

Answer 4

1. Select boars that possess good muscle development in the ham, loin, and shoulder
2. Select boars that shows ADG of not less than 800g and FCE of not more than 2.5
3. Boars should be at least 90kg and not more than 160 days of age during selection

Question 5

Selection of Replacement Gilts

Answer 5

1. Select gilts with good temperament and smooth in general appearance
2. Select gilts with at least 6 pairs of prominent, well spaced teats, avoid blind and inverted teats
3. Select gilts with Backfat of about 2cm at 90kg
4. Select gilts with strong legs and pasterns

Question 6

Selection of Unproductive and undesirable animals/swine

Answer 6

1. Boars with poor semen quality
2. Boars that have difficulty in mounting for no apparent reason
3. Gilts that do not come into heat after 10 months of age
4. Gilts that do not settle after 2 repeated mating to proven sire
5. Sows with poor maternal instinct and mothering ability

Question 7

General characteristics of Philippine native pigs

Answer 7

1. Small and late maturing
2. Have small ears
3. Swayback and weak pasterns
4. Prolific, but has yet to be documented

Question 8

Native pigs in the Philippines

Answer 8

1. Philippine native pig
2. Luzon warty pig
3. Palawan bearded pig

Question 9

List of Purebreed swine

Answer 9

1. Landrace
2. Large white
3. Duroc
4. Pietrain
5. Hampshire
6. Berkshire
7. Poland China
8. Tamworth
9. Chester white
10. Hereford
11. Large Black
12. Limousine
13. Spotted

Question 10

Upgraded native pigs

Answer 10

1. Diani
2. Kaman
3. Berkjala
4. Miracle pig

Question 11

Types of Breeding System

Answer 11

1. Pure-breeding
2. Outbreeding
3. Inbreeding
4. Line-breeding
5. Crossbreeding

Question 12

System of crossbreeding

Answer 12

1. Two-way cross
2. Three-way cross
3. Four-way cross

Question 13

Common sign of estrus

Answer 13

1. Swelling and reddening of vulva
2. Thick mucous discharge in the vagina
3. Mounted other animals or welling to be mounted by other regardless of sex
4. React to the boars’ mating sound

Question 14

Techniques in heat detection

Answer 14

1. Back pressure test
2. Riding the back test
3. Teaser boar method
4. Examination of external signs and record

Question 15

Sign of advance stage of pregnancy of animals

Answer 15

1. Enlargement, swelling, and reddening of external genitalia
2. Nervousness and restlessness
3. Presence of milk indicating farrowing within 24 hours
4. Nest building in sows raised in pasture

Question 16

Methods and/or equipment used in pregnancy diagnosis

Answer 16

1. Review of records
2. Evaluation of external signs
3. Ultrasound-doppler tests
4. Ultrasound Scanner

Question 17

Mating system

Answer 17

1. Natural mating
2. Artificial Insemination

Question 18

Physical Semen Evaluation

Answer 18

1. Volume
2. Appearance
3. Smell/odor

Question 19

Microscopic Semen Evaluation

Answer 19

1. Concentration
2. Motility
3. Morphology