EPD Quiz with accurate detailed solutions ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
What does EPD stand for? - correct answer✔✔Expected Progeny Differences
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
What is an EPD? - correct answer✔✔Expressions of the relative gentic merit of beef cattle for
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
varios traits ||//\\||
How do you compare EPDs? - correct answer✔✔Within the same breed
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
EPD Traits - correct answer✔✔+/-
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Birth Weight (BW) - correct answer✔✔Direct weight of calf at birth
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Larger=bad; heavier ||//\\||
Calving Ease (CE) - correct answer✔✔DCE- ease at which a bull's calves are born to first calf
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
heifers ||//\\||
MCE- ease at which a sire's daughter will calf
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Measured by ratio or percent unassisted births ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Larger=better
Weaning Weight (WW) - correct answer✔✔Weight of calf adjusted to 205 days of age (find
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
average gain/day) ||//\\|| ||//\\||
Direct
Yearling Weight (YW) - correct answer✔✔Weight of calf adjusted to 365 days ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Direct ||//\\||
Best tool to evaluate and select for genetic growth
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
, Maternal Milk (Milk) - correct answer✔✔Effect of milking ability of the daughter ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Total Maternal or Maternal Weaning Weight - correct answer✔✔Measures total pounds of calf
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
weaned weaned from the daughters of the sire ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
1/2 sire's WW+Milk ||//\\|| ||//\\|| ||//\\||
Milk + grow = Hereford ||//\\|| ||//\\|| ||//\\|| ||//\\||
Carcass Weight (CW) - correct answer✔✔Pounds of hot carcass weight ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Adjusted 475 days ||//\\|| ||//\\|| ||//\\||
Direct
Marbling Score (MB) - correct answer✔✔+ and higher numbers= more intramuscular fat (want ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
more) ||//\\||
Not highly correlated to BF ||//\\|| ||//\\|| ||//\\|| ||//\\||
Back Fat, Fat Thickness (Fat, FT) - correct answer✔✔Measures genetic leanness and correlated to
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
YG
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Adjusted to 475 days ||//\\|| ||//\\|| ||//\\|| ||//\\||
Lower= better; more desirable YG ||//\\|| ||//\\|| ||//\\|| ||//\\||
Rib Eye Area (REA) - correct answer✔✔Measures genetic muscle and correlated to YG
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
% Retail Cuts, Retail Products - correct answer✔✔Measures genetic differences in YG
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Lower= better b/c YG= lower ||//\\|| ||//\\|| ||//\\|| ||//\\||
Scrotal Circumference (SC) - correct answer✔✔Correlated to fertility and early advent of puberty ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
in the daughters
||//\\|| ||//\\|| ||//\\||
What does EPD stand for? - correct answer✔✔Expected Progeny Differences
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
What is an EPD? - correct answer✔✔Expressions of the relative gentic merit of beef cattle for
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
varios traits ||//\\||
How do you compare EPDs? - correct answer✔✔Within the same breed
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
EPD Traits - correct answer✔✔+/-
||//\\|| ||//\\|| ||//\\|| ||//\\||
Birth Weight (BW) - correct answer✔✔Direct weight of calf at birth
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Larger=bad; heavier ||//\\||
Calving Ease (CE) - correct answer✔✔DCE- ease at which a bull's calves are born to first calf
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
heifers ||//\\||
MCE- ease at which a sire's daughter will calf
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Measured by ratio or percent unassisted births ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Larger=better
Weaning Weight (WW) - correct answer✔✔Weight of calf adjusted to 205 days of age (find
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
average gain/day) ||//\\|| ||//\\||
Direct
Yearling Weight (YW) - correct answer✔✔Weight of calf adjusted to 365 days ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Direct ||//\\||
Best tool to evaluate and select for genetic growth
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
, Maternal Milk (Milk) - correct answer✔✔Effect of milking ability of the daughter ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Total Maternal or Maternal Weaning Weight - correct answer✔✔Measures total pounds of calf
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
weaned weaned from the daughters of the sire ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
1/2 sire's WW+Milk ||//\\|| ||//\\|| ||//\\||
Milk + grow = Hereford ||//\\|| ||//\\|| ||//\\|| ||//\\||
Carcass Weight (CW) - correct answer✔✔Pounds of hot carcass weight ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Adjusted 475 days ||//\\|| ||//\\|| ||//\\||
Direct
Marbling Score (MB) - correct answer✔✔+ and higher numbers= more intramuscular fat (want ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
more) ||//\\||
Not highly correlated to BF ||//\\|| ||//\\|| ||//\\|| ||//\\||
Back Fat, Fat Thickness (Fat, FT) - correct answer✔✔Measures genetic leanness and correlated to
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
YG
||//\\|| ||//\\||
Adjusted to 475 days ||//\\|| ||//\\|| ||//\\|| ||//\\||
Lower= better; more desirable YG ||//\\|| ||//\\|| ||//\\|| ||//\\||
Rib Eye Area (REA) - correct answer✔✔Measures genetic muscle and correlated to YG
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
% Retail Cuts, Retail Products - correct answer✔✔Measures genetic differences in YG
||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
Lower= better b/c YG= lower ||//\\|| ||//\\|| ||//\\|| ||//\\||
Scrotal Circumference (SC) - correct answer✔✔Correlated to fertility and early advent of puberty ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\|| ||//\\||
in the daughters
||//\\|| ||//\\|| ||//\\||
