1. Quiz for Beef Cattle EPDs.ppt
Developed by:
Richard Coffey, Extension Swine Specialist, University of Kentucky
Kevin Laurent, Extension Associate, University of Kentucky
Warren Beeler, Kentucky Department of Agriculture
Edited for Georgia by Frank B. Flanders
Georgia Agriculture Education Curriculum Office
March 2002

2. Important EPDs for Beef Cattle
Unit of Change
Impact
EPD
Birth Weight (BW)
Pounds (lbs)
Fewer lbs = Fewer Calving Problems
More lbs = faster calf growth
More lbs = Heavier Feeder Calves
Weaning Weight (WW)
Pounds (lbs)
Milk - maternal (MILK)
Pounds (lbs)
More lbs = More Cow Milk Production
More lbs = faster steer growth
More lbs = Reach market faster
More lbs = greater mature size
Yearling Weight (YW)
Pounds (lbs)
Rib Eye Area
REA
Inches2
More in2 = heavier muscled calves
Percent %
Higher % = more intramuscular fat
Higher % = higher quality grade
Marbling
(MARB)

3. Question 1 Which bull would be the best choice to breed to heifers?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull B - he has the lowest birth weight (BW) EPD

4. Question 2 Which bull would produce the lightest feeder calves?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull B - he has the lowest weaning weight (WW)
EPD birth weight (BW) EPD

5. Question 3 Bull D - he has the highest marbling (MARB) EPD
Which bull will produce calves with the highest quality grade?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull D - he has the highest marbling (MARB) EPD

6. Question 4 Bull C - he has the highest yearling weight (YW) EPD
Which bull will sire steers that reach market weight the quickest?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull C - he has the highest yearling weight (YW) EPD

7. Which bull will sire the poorest milk-producing daughters?
Question 5
Which bull will sire the poorest milk-producing daughters?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull A - he has the lowest milk (MILK) EPD

8. Question 6 Which bull will produce the heaviest muscled calves?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull B - he has the highest rib eye area (REA) EPD

9. Bull B - he has the lowest weaning weight (WW) EPD
Question 7
Which bull’s calves will be the oldest when sold as feeder calves weighing 500 pounds?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull B - he has the lowest weaning weight (WW) EPD

10. Question 8 Which bull will sire the heaviest calves at birth?
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull C - he has the highest birth weight (BW) EPD

11. Question 9
Which bull will make the most improvement in milking ability?
Birth
Weight (BW)
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull D - he has the highest milk (MILK) EPD

12. Question 10 Which bull will sire the most growth?
Weaning Weight
(WW)
Yearling
Weight (YW)
Bull
Birth
Weight (BW)
Milk
(MILK)
Rib Eye
Area
(REA)
Marbling
(MARB) A B C D
Bull C - he has the highest weaning weight (WW)
and yearling weight EPDs