BEEFGENETICS

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What color are Shorthorns?

A. White B. Red C. Roan D. All the above

A

B

C

D

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Santa Gertrudis is a mixture of what 2 breeds? A. Shorthorn and Brahman B. Angus and Brahman C. Red Angus and Shorthorn D. Red Poll and Beefmaster D

B

C

A

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Which will finish quicker heifers, steers, or bulls? A. Heifers B. Steers C. Bulls

B

C

A

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What is the highest possible quality grade? A. Prime B. Choice C. Select D. StandardD

B

C

A

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How is Quality grade determined? A. Degree of external fat B. Degree of intra-muscular fat C. Ribeye area D. Carcass size

A

D

C

B

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Marbling by definition is ______.

A. Round shape of the bone B. Intra-muscular fat C. Ribeye area size D. Foot size

A

D

C

B

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How do cattle progress in getting fat? A. Back to front B. Front to back C. Bottom to top D. Inside out

A

D

C

B

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Terminal crossing system means ... A. 10 % of offspring are kept as

replacements. B. All heifers will be kept. C. All offspring will be sold to market D. All steers will be sold to market.

A

B

D

C

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A farmer buying a bull for terminal crossing would put more emphasis on which traits?

A. Growth and carcass B. Maternal and milk C. Maternal and growth D. Milk and carcassD

B

C

A

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Which of these is a terminal breed of cattle?

Angus Hereford Limousin Shorthorn

A

B

D

C

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What does the term contemporary group mean?

A group of cattle that are uniform in age and management

A group of cattle that is new to the farm A group of cattle that is much smaller

than the rest of the herd A group of bulls that are used to

increase conception rate

B

D

C

A

Polled cattle have ______.

A. Horns B. No horns C. A shallow body D. twins

A

D

C

B

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A heifer twin to a bull is referred to as a _____. A. Big sister B. Little sister C. Step sister D. Free martin

A

B

C

D

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Which color in cattle is dominant? A. Red B. Black C. White D. Roan

A

C

D

B

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Which color in cattle is recessive? A. Red B. Black C. White D. Purple

C

B

D

A

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Line-breeding is a form of _____.

A. Crossbreeding B. In-breeding C. Confusion D. Out crossing

A

C

D

B

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Heterosis is the advantage received from ______. A. Crossbreeding B. In-breeding C. Line-breeding D. A father-daughter mating

C

B

D

A

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Crossbreeding improves traits _____ in heritability. A. High B. Medium C. Low D. Extremely high

A

B

D

C

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100% heterosis can improve growth by as much as ______. A. 2-4% B. 6-8% C. 10-12% D. 20-25%

A

C

D

B

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Why would a purebred breeder practice in-breeding? A. Check a line for genetic faults B. Improve genetic consistency C. Cannot find outside genetics

capable of making improvement D. All the above

A

B

C

D

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REA is an abbreviation for _____. A. Real beef B. Natural beef C. Ribeye area D. Marbling

A

B

D

C

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YW represents which EPD?

A. Yearling weight B. Inter-muscular fat C. Yield grade D. Scrotal circumference

C

B

D

A

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BW represents which EPD?

A. Born Alive B. Marbling C. Longevity D. Birth weight

A

B

C

D

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WW represents which EPD?

A. Calving interval B. Milk C. Weaning weight D. Yearling weight

A

B

D

C

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EPD is an abbreviation for ____.

A. Excellent progeny decisions B. Expected progeny difference C. Exception proof of difference D. Accuracy

A

C

D

B

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MARB refers to which EPD?

A. More ribeye are B. Quality grade C. Yield grade D. Marbling

A

B

C

D

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ACC may be the most important abbreviation considered when evaluating EPD’s. What does it represent?

A. Breeder accountability B. Accuracy C. All EPD’s combined D. A new longevity EPD

A

C

D

B

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What does the term terminal sire mean?

This sire needs to be slaughtered for meat.

All offspring from this bull will be sold for slaughter.

Some offspring will be kept as replacements and the rest will be slaughtered.

All offspring will be kept as replacements.

A

D

C

B

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Which of these is not a maternal breed of cattle?

Angus Shorthorn Hereford Charolais

A

BC

D

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What is the largest framed breed of cattle?

Shorthorn Limousin Chianina Red Angus

A

B

D

C

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Which of these breeds can never be black in color?

Angus Brangus Charolais Limousin

A

B

D

C

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Which of these breeds is not red in color?

Hereford Brangus Tarentaise Red Angus

A

D

C

B

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Which of these breeds is not white or gray in color?

Charolais Santa Gertrudis Belgian Blue Murray Grey

A

D

C

B

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Which of these is considered the heaviest muscled breed of beef cattle?

Belgian Blue Texas Longhorn Angus Hereford

B

D

C

A

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Which of these is considered the lightest muscled breed of beef cattle?

Limousin Chianina Texas Longhorn Angus

A

B

D

C

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What breeds can be crossed to make a blue roan?

Angus and Shorthorn Charolais and Limousin Angus and Hereford Shorthorn and Hereford

B

D

C

A

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What percentage of Brahman blood are the Brangus, Simbrah, and Santa Gertrudis breeds of cattle? 1/8 5/8 3/8 7/8

A

B

D

C

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What breeds are crossed to make a Beefmaster?

Brahman, Shorthorn, and Hereford Santa Gertrudis, Shorthorn and

Braford Chianina, Hereford, and Angus Texas Longhorn, Simmental, and

Maine Anjou

B

D

C

A

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What breed of cattle is known for producing the lightest calves at birth?

Angus Texas Longhorn Chianina Gelbvieh

A

D

C

B

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What does MPPA stand for?

Most Probable Producing Ability More People Produce Angus Most Phenotypic Production Ability Muscle, Performance, Production,

Accuracy

B

D

C

A

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All of these are factors to consider when adjusting 205 day weights except ________.

Birth Weight Age at Weaning Age of Dam Amount of Feed/Day

A

BC

D

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Which of these traits is not evaluated with EPD’s?

Birth Weight Weaning Weight Frame Size Yearling Weight

A

B

D

C

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Horn tissue that never attaches to the scull is called _________.

Longhorns Scurs Buds Horn Cartilage

A

D

C

B

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If a scurred cow has a bull calf sired by a homozygous polled bull, what will be the horn status of the calf?

Horned Polled Scurred

A

B

C

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A genetic abnormality that causes muscle hypertrophy is called __________. Light muscled Muscular atrophy Double muscled Super muscled

A

B

D

C

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As your calf gets fatter, will dressing percentage increase or decrease?

Increase DecreaseB

A

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Which bull would be the best to breed to heifers? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

B

D

C

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Which bull will sire the most growth? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

D

C

B

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Which bull will sire the lightest calves at weaning? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

B

D

C

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Which bull would be considered a terminal sire? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

D

C

B

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Which bull will have daughters that will be most improved in milk production? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

B

D

C

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Which bull will increase muscle the most in his calf crop? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88D

B

C

A

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Which bull will make the most improvement in the offspring’s ability to grade choice or higher? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

B

D

C

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Which bull will sire the lightest muscled calves? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

D

C

B

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Which bull will sire the biggest calves at birth? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

D

C

B

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Which bull will produce the heaviest feeder calves? BW WW MILK REA MARB YW A. 2.4 30 13 .49 -.32 61 B. 5.6 48 10 -.01 .15 98 C. 0.5 28 21 .11 .62 70 D. 3.4 43 19 .34 -.12 88

A

D

C

B

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EPD’s can be used to compare different breeds. A. True B. False

A

B

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Which accuracy would make the EPD’s the most accurate? A. .28 B. .54 C. .90 D. .67

A

B

D

C

MENU

An EPD of +.10 weaning weight in the Angus breed has the same genetic merit as a +.10 for WW in the Hereford breed

True False

A

B

Birth Weight (BW) and Weaning Weight (WW) EPD’s are expressed in … Degrees Centimeters Pounds Inches

A

B

D

C

Scrotal Circumferences EPD’s are expressed in …

Degrees Centimeters Pounds Inches

A

D

C

B

Height EPD’s are expressed in …

Degrees Centimeters Pounds Inches

A

B

C

D

Marbling EPD’s are expressed in …

Degrees Centimeters Pounds Inches

C

B

D

A

EPD Accuracy values range from

1-10 1-50 1-100 0-1

A

B

C

D