Beef Cattle Exam UPDATED ACTUAL
Exam Questions and CORRECT Answers
What does EPD stand for? - CORRECT ANSWER - expected progeny difference
What information is included in EPD? - CORRECT ANSWER - Performance data from
- individual
- ancestral
- collateral relatives
- progeny
Heritability - CORRECT ANSWER - Proportion of phenotypic variation due to additive
gene effects
Breeding value - CORRECT ANSWER - The genetic transferring ability of a parent to its
offspring
Direct EPDs - CORRECT ANSWER - Effect individuals own genes have on its
performance
Maternal EPDs - CORRECT ANSWER - Effect that genes of an individuals dam have on
the environment influencing it's performance
Maternal effect mom provides to calf - CORRECT ANSWER - -mothering ability
-milk production
-environment
-maternal instinct
What influences weaning weight? - CORRECT ANSWER - Genes for growth in calf
, And
Genes for milk in mother
Combined maternal EPD - CORRECT ANSWER - reflects both the milking ability
transmitted to daughters and the direct weaning growth transmitted through daughters to their
calves
Why are breed averages not zero? - CORRECT ANSWER - Because its what it was when
EPDs were first set, it represents the historic base point or year. breed averages are the deviation.
Greater than 0 means physiological and genetic improvement over time.
Proper contemporary groups - CORRECT ANSWER - Group of cattle that is the same sex,
raised together, 90 days w/ in each other, slaughtered within specific weights/ages/fat thickness
If a calf is alive but bad its still better than one that is... - CORRECT ANSWER - Dead
What is calf crop percentage? - CORRECT ANSWER - # of calves weaned / # of cows
exposed X 100
What is the beef cattle pregnancy rate in Texas? - CORRECT ANSWER - 88%
What is the calf crop percentage range? - CORRECT ANSWER - 65-95% depending on
management
What are the beef cattle pregnancy rates in Texas? - CORRECT ANSWER -
What are the repro goals for beef cattle? - CORRECT ANSWER - -90-95% inn heat w/in
first 21 days of breeding
-70% or more conceive on first breeding
- < 5% w difficult breeding
Exam Questions and CORRECT Answers
What does EPD stand for? - CORRECT ANSWER - expected progeny difference
What information is included in EPD? - CORRECT ANSWER - Performance data from
- individual
- ancestral
- collateral relatives
- progeny
Heritability - CORRECT ANSWER - Proportion of phenotypic variation due to additive
gene effects
Breeding value - CORRECT ANSWER - The genetic transferring ability of a parent to its
offspring
Direct EPDs - CORRECT ANSWER - Effect individuals own genes have on its
performance
Maternal EPDs - CORRECT ANSWER - Effect that genes of an individuals dam have on
the environment influencing it's performance
Maternal effect mom provides to calf - CORRECT ANSWER - -mothering ability
-milk production
-environment
-maternal instinct
What influences weaning weight? - CORRECT ANSWER - Genes for growth in calf
, And
Genes for milk in mother
Combined maternal EPD - CORRECT ANSWER - reflects both the milking ability
transmitted to daughters and the direct weaning growth transmitted through daughters to their
calves
Why are breed averages not zero? - CORRECT ANSWER - Because its what it was when
EPDs were first set, it represents the historic base point or year. breed averages are the deviation.
Greater than 0 means physiological and genetic improvement over time.
Proper contemporary groups - CORRECT ANSWER - Group of cattle that is the same sex,
raised together, 90 days w/ in each other, slaughtered within specific weights/ages/fat thickness
If a calf is alive but bad its still better than one that is... - CORRECT ANSWER - Dead
What is calf crop percentage? - CORRECT ANSWER - # of calves weaned / # of cows
exposed X 100
What is the beef cattle pregnancy rate in Texas? - CORRECT ANSWER - 88%
What is the calf crop percentage range? - CORRECT ANSWER - 65-95% depending on
management
What are the beef cattle pregnancy rates in Texas? - CORRECT ANSWER -
What are the repro goals for beef cattle? - CORRECT ANSWER - -90-95% inn heat w/in
first 21 days of breeding
-70% or more conceive on first breeding
- < 5% w difficult breeding
