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FFA Livestock Judging > CDE Test 2 > Flashcards

CDE Test 2 Flashcards

1
Q

Hormones are organic catalyst that influence the growth and development of the body and are produced in the:

A

endocrine system

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2
Q

In what part of the respiratory system are the passages from the nostrils and the mouth joined?

A

pharynx

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3
Q

The pancreas produces which hormone?

A

insulin

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4
Q

What major mineral is often lacking in animal rations?

A

calcium

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5
Q

The proportion of the total variation is offspring from parents due to additive gene effects:

A

heritability

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6
Q

Which trait in beef cattle has the highest heritability estimate?

A

ribeye area

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7
Q

Which trait in sheep has the lowest heritability estimate

A

fee efficiency

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8
Q

The diploid number (pairs of chromosomes) for sheep is:

A

27

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9
Q

Which gland in the male produces the sperm cells?

A

testicles

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10
Q

The average age for cattle to reach puberty is:

A

6-8 months

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11
Q

The average length of the estrus cycle in swine is:

A

21 days

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12
Q

The release of the egg from the ovary is called:

A

ovulation

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13
Q

Which region of the United States produces the most beef cattle?

A

Southwest

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14
Q

Which breed of cattle is classified as a Bos indicus type?

A

Braham

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15
Q

What is the standard number of days that beef cattle weaning weights are adjusted to?

A

205

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16
Q

The normal average bod temperature for healthy beef cattle is:

A

101.5 degrees F

17
Q

What is the length of time that bacteria causing Anthrax can remain in the soils?

A

40 years

18
Q

Pinkeye, the common name of this disease, is carried by insects and affects the eyes of the animal:

A

Infectious Keratitis

19
Q

Which nutritional disease is a hear condition of beef cattle at high altitudes?

A

Brisket Disease

20
Q

White Muscle disease is caused by deficiency of the trace element:

A

selenium

21
Q

Which breed of swine is known to produce the largest loin muscle area based on performance tests?

A

Hampshire

22
Q

What term refers to the degree of refinement of head, hair, hide, and bone of the live hog?

A

quality

23
Q

Since 1970, which breed of sheep has the largest number registered with their breed association:

A

Suffolk

24
Q

Which fine wool breed of sheep originated in the United States?

A

Debouillet

25
Q

The backfat on a market lamb should measure _______ at the 12th rib.

A

0.15 to 0.20 inches

26
Q

A lack of what substance in the blood causes milk fever in sheep?

A

calcium

27
Q

What type of parasites are the most serious health problem for sheep?

A

internal

28
Q

To ________ is to adapt the behavior of an animal to fit the needs of people.

A

domesticate

29
Q

What two wild stocks did American breeds of swine come from?

A

Sus vittitus & Sus scrofa

30
Q

Timid, defenseless, and the least intelligent of all tamed livestock, these were thought to be the first wild species domesticated.

A

sheep

31
Q

Livestock belong to what class of homoeothermic animals that are characterized as having four chambered hearts, mammary glands, and have young born alive?

A

mammalia

32
Q

All the domestic animals found on the farm are included in what kingdom?

A

Animalia

33
Q

In the subdivision Pecora of the suborder Ruminantia, are considered “true ruminants” because they have what unique characteristic?

A

Stomachs with four compartments

34
Q

What does the rumen of a cow contain that allows it to effectively digest low quality feedstuffs?

A

Microorganisms

35
Q

What percentage of total beef and dairy energy intake in the U.S. consists of roughages and other waste materials that can’t be used for human food?

A

About 75%

36
Q 
Which of the following is not a carcass byproduct of slaughter animals?
A. wool
B. meat
c. leather
d. mohair
A

B. meat

FFA Livestock Judging (2 decks)

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