E. CULLING

Question 1

-opposite of selection

Answer 1

CULLING

Question 2

9 POINTERS IN CULLING:

Answer 2

1. REPRODUCTIVE FAILURES
2. POOR MATERNAL INSTINCTS
3. POOR MILKERS
4. FEET AND LEG PROBLEM
5. POOR LITTER SIZE
6. LONG DRY PERIOD
7. DAMAGED UDDER SECTION
8. DISEASE
9. ABNORMALITIES

Question 3

some gilts and sows do not come into heat despite proper feeding and management:

Answer 3

REPRODUCTIVE FAILURES
ex.
hydrosalpinx
pyosalpinx
unilateral blind uterine horn

Question 4

oviduct distened w/ fluid

Answer 4

HYDROSALPINX

Question 5

ovidcut distened w/ pus-like

Answer 5

PYOSALPINX

Question 6

cystic ovaries , blind uterine body

Answer 6

UNILATERAL BLIND UTERINE HORN

Question 7

some sows have cannibalistic tendency durimg & after farrowing esp. first farrowed :

Answer 7

POOR MATERNAL INSTINCTS

Question 8

sow must be able to produce milk for her litter of 8 for 3-4 weeks

Answer 8

POOR MILKERS

Question 9

It can lower the quality of the whole herd.

Answer 9

ABNORMALITIES

Question 10

common example of abnormalities:

Answer 10

HERNIAS, ATRESIA, CRYPTORCHIDISM

Question 11

LETHAL ABNORMALITIES:

Answer 11

1. Atresia ani
2. Bent legs
3. Brain hernia
4. Catlin mark
5. Cleft palate
6. Excessive fatness
7. Fetal mortality
8. Hydrocephalus
9. Legless
10. Muscle contracture
11. Split ears
12. Thickened forelimbs

Question 12

NON-LETHAL ABNORMALITIES

Answer 12

1. CRYPTORCHIDISM
2. HAIR WHORLS
3. HAIRLESSNESS
4. HEMOPHILLA
5. INVERTED NIPPLES
   6.KINKY TAIL
6. POLYDACTYL
7. RED EYES
8. SROTAL HERNIA
9. UMBILICAL HERNIA
10. SYNDACTYL
11. WTATLES
12. WOOLY