Developed by: Richard Coffey, Extension Swine Specialist, University of Kentucky

# Developed by: Richard Coffey, Extension Swine Specialist, University of Kentucky

## Developed by: Richard Coffey, Extension Swine Specialist, University of Kentucky

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##### Presentation Transcript

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) More lbs = More Cow Milk Production Pounds (lbs) 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. Bull B - he has the lowest birth weight (BW) EPD Question 1 Which bull would be the best choice to breed to heifers? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

4. Bull B - he has the lowest weaning weight (WW) EPD birth weight (BW) EPD Question 2 Which bull would produce the lightest feeder calves? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

5. Bull D - he has the highest marbling (MARB) EPD Question 3 Which bull will produce calves with the highest quality grade? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

6. Bull C - he has the highest yearling weight (YW) EPD Question 4 Which bull will sire steers that reach market weight the quickest? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

7. Bull A - he has the lowest milk (MILK) EPD Question 5 Which bull will sire the poorest milk-producing daughters? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

8. Bull B - he has the highest rib eye area (REA) EPD Question 6 Which bull will produce the heaviest muscled calves? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

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? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

10. Bull C - he has the highest birth weight (BW) EPD Question 8 Which bull will sire the heaviest calves at birth? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

11. Bull D - he has the highest milk (MILK) EPD Question 9 Which bull will make the most improvement in milking ability? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12

12. Bull C - he has the highest weaning weight (WW) and yearling weight EPDs Question 10 Which bull will sire the most growth? Yearling Weight(YW) Weaning Weight (WW) Birth Weight(BW) Bull Milk (MILK) Rib Eye Area (REA) Marbling (MARB) A 0.0 +20 +15 +40 -0.3 +0.05 B -1.6 +16 +22 +32 +0.8 - 0.02 C +2.1 +42 +21 +55 +0.4 +0.08 D -0.2 +35 +30 +44 -0.7 +0.12