Quiz for Beef Cattle EPDs.ppt

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Presentation transcript:

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

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)

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 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 Bull B - he has the lowest birth weight (BW) EPD

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 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 Bull B - he has the lowest weaning weight (WW) EPD birth weight (BW) EPD

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 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 Bull D - he has the highest marbling (MARB) EPD

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 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 Bull C - he has the highest yearling weight (YW) EPD

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 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 Bull A - he has the lowest milk (MILK) EPD

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 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 Bull B - he has the highest rib eye area (REA) EPD

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 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 Bull B - he has the lowest weaning weight (WW) EPD

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 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 Bull C - he has the highest birth weight (BW) EPD

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 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 Bull D - he has the highest milk (MILK) EPD

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 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 Bull C - he has the highest weaning weight (WW) and yearling weight EPDs