Questions 169-203 Flashcards

1
Q

which species of livestock has a diploid number of 27(pairs of chromosomes)

A

sheep

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2
Q

which of the following countries has the greatest number of hogs

A

china

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3
Q

the expected yield of a hog with a USDA quality grade of No. 1 is

A

60.4% or greater

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4
Q

which protein concentrate is limited to use by ruminants

A

urea

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5
Q

when using ultrasound to evaluate breeding swine, the two measurements taken are backfat thickness

A

loin-eye area

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6
Q

which species of livestock is most efficient into converting feed into energy and protein

A

swine

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7
Q

the amount of ammoniacal nitrogen in a feed multiplied by 6.25 is the _____ content of a feed

A

crude protein

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8
Q

the degree to which the crossbred offspring out performs its purebred parents is

A

Hybrid vigor

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9
Q

anthrax is a disease caused by bacteria that may remain in the soil for _____ years or longer

A

40

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10
Q

what is a common disqualification in rules for registering animals in a breed association

A

color marking

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11
Q

fistulated cattle are used primarily for ______ studies and research

A

nutrition

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12
Q

a permanent change in the genotype of an offspring from that of its parents

A

mutation

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13
Q

brisket disease affects the _______ in cattle

A

heart

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14
Q

which polled breed of cattle originated from horned cattle due to a genetic mutation

A

polled hereford

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15
Q

what is an animal resulting from the mating of two different breeds

A

crossbred

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16
Q

the most prevalent breed of sheep in the world is the

17
Q

the secretion and production of milk in sheep, cattle and swine is known as

18
Q

____ is a measure of the degree of difference between the offspring of a specific bull and the offspring of the average bull of breed in the trait being measured

19
Q

what Is the infertile female calf born as a twin to a fertile male calf called

A

freemartin

20
Q

the normal body temperature of cattle is

21
Q

a medication sprayed directly into the animal’s nostrils is called a ______ injection

22
Q

swine dysentery is also known as

A

bloody scours

23
Q

a disease carried by insects that affect the eyes of cattle is

24
Q

which trait in sheep has the lowest heritability estimate

A

feed efficiency

25
the feed component containing the most easily digested carbohydrates is the
nitrogen free extract
26
which of the following feeds is highest in total digestible nutrients (TDN)
corn
27
medications used to promote immunity in livestock that are derived from plasma and fibrinogen removed from blood are
serums
28
breeds of cattle that are used for both milk and meat production are considered to be
dual-purpose breeds
29
which exotic breed of cattle originated from Italy
Chianina
30
in comparing breed performance for litter size in swine, which breed has the highest litter size ratio
landrace
31
the pork promotion, research and consumer information act of 1985 established an assessment of ___ per $100 value of pork sold in the US
40 cents
32
goat meat is marketed under the name
chevon
33
disease caused by an organism that mainly affects the lungs
tuberculosis
34
cotswold sheep are classified as
long wool
35
the tube that carries air to an animal's lungs
trachea