Developed by:Richard Coffey, Extension Swine Specialist, University of KentuckyKevin Laurent, Extension Associate, University of KentuckyWarren Beeler, Kentucky Department of Agriculture

Quiz for Swine EPDs

Edited for Georgia by Frank B. FlandersGeorgia Agriculture Education Curriculum OfficeMarch 2002

Progeny• Offspring

• Children

• Young

• Descendants2

EPD- Expected Progeny Differences

• Looking at genetics to make the best litters.

• Look at parents to determine what babies will be like

Expected Progeny Differences

• Expected progeny differences (EPDs) provide estimates of the genetic value of an animal as a parent.

4

NBA•Number Born Alive

5

21-DLW

•21 Day Litter Weight

•How much will they weigh in 21 days

•Weaned by then6

• BF- Backfat

• LEA- Loin Eye Area- get pork chops from loin (across back of pig)

7

Question 1Which sow will have the largest litter?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 1Which sow will have the largest litter?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow D - she has the highest no. pigs born alive (NBA) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 2Which sow is the heaviest milking?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 2Which sow is the heaviest milking?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow B - she has the highest 21-day litter weight (21-DLW) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 3Which sow’s pigs will be the lightest muscled?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Ewe Days to 260 LBS (DAYS)

Question 3Which sow’s pigs will be the lightest muscled?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow B - she has the lowest loin eye area (LEA) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Ewe Days to 260 LBS (DAYS)

Question 4Which sow’s pigs will be the oldest at 260 pounds?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 4Which sow’s pigs will be the oldest at 260 pounds?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow A - she has the highest days to 260 lbs (DAYS) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 5Which sow’s pigs will be the fattest?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 5Which sow’s pigs will be the fattest?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow B - she has the highest backfat (BF) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 6Which sow will have the fewest pigs at birth?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Ewe Days to 260 LBS (DAYS)

Question 6Which sow will have the fewest pigs at birth?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow B - she has the lowest no. pigs born alive (NBA) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Ewe Days to 260 LBS (DAYS)

Question 7Which sow’s litter will be the heaviest at weaning?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 7Which sow’s litter will be the heaviest at weaning?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow B - she has the highest 21-day litter weight (21-DLW) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 8Which sow’s pigs will have the highest percentage carcass lean?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Ewe Days to 260 LBS (DAYS)

Question 8Which sow’s pigs will have the highest percentage carcass lean?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Ewe Days to 260 LBS (DAYS)

Sow C - she has the lowest backfat (BF) and thehighest loin eye area (LEA) EPDs

Question 9Which sow’s pigs will be the fastest growing?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 9Which sow’s pigs will be the fastest growing?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow C - she has the lowest days to 260 lbs (DAYS) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 10Which sow’s pigs will have the largest pork chops?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)

Question 10Which sow’s pigs will have the largest pork chops?

A +0.2 -3.0 +0.1 -0.01 +0.6

B -0.3 +4.2 -3.1 +0.07 -0.4

C +0.4 +3.2 -3.8 -0.09 +0.8

D +0.6 +1.4 -2.2 0.00 +0.3

Sow C - she has the highest loin eye area (LEA) EPD

No. pigs born alive

(NBA)

21-day litter weight (21-

DLW)

Backfat(BF)

Loin Eye Area (LEA)

Days to 260 LBS (DAYS)