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Dairy Cattle > #251-300 > Flashcards

#251-300 Flashcards

1
Q

When comparing bulls for artificial insemination, what does “SCR” stand for?

A

A. Sire conception rate

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2
Q

Which of the following is NOT classified as a water soluble-vitamin?

A

D. Vitamin A

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3
Q

In the ruminant digestive system, which of the following is the name of first section of the small intestine that is connected to the abomasum?

A

C. Duodenum

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4
Q

Research has shown that by formulating lactating cow rations with proper amounts of amino acids, we can decrease the crude protein content of the ration and reduce_____

A

A. Nitrogen excretion

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5
Q

In order to prevent bloat, the feed additive Poloxalene is often added to feed rations for cows that are grazing. Which of the following grazed forages are most likely to cause bloat?

A

D. Alfalfa and Clover

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6
Q

Rumen bacteria enable dairy cattle to utilize which feed suppliment?

A

B. Urea

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7
Q

Heritability for milk production in dairy cattle is:

A

B. 30%

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8
Q

If the heat detection rate is 30% and the conception rate is 30%, what is the pregnancy rate?

A

A. 9%

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9
Q

Which of the following is a infectious disease?

A

C. Ringworm

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10
Q

What female hormone causes follicles to begin to develop?

A

B. Follicle stimulating hormone

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11
Q

In dairy cows, what is the name of the disease caused by the organisms Staph Aureus, Strep Uberis, and Klebsiella?

A

C. Mastitis

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12
Q

What stomach compartments are not developed in a newborn calf?

A

D. Rumen and Reticulum

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13
Q

When compared to normal corn silage, brown mid-rib corn silage has more energy and high digestibility. This is due largely to its lower content of _______.

A

B. Lignin

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14
Q

Which one of the following describes biotin?

A

D. A B-Vitamin

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15
Q

A material used in a footbath for cows with foot rot problems is:

A

A. Copper Sulfate

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16
Q

Milking time is best reduced by:

A

D. Preparing cows properly

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17
Q

The CWT programs stands for Cooperatives Working Together. Which of the following describes the function of this program?

A

B. A national dairy farmer-funded program that is used to help stabilize milk prices

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18
Q

Which one of the following is the name of the part of the cow’s back that lies between the withers and the loin?

A

D. Chine

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19
Q

What is the name of the term for a farm’s unique identification number that is part of the National Animal Identification System?

A

D. Premis ID

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20
Q

Dairy farmers frequently place a stomach magnet into their cows to:

A

C. Prevent ingested metal objects from interfering with the digestive tract or the respiratory system

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21
Q

The rumen of a cow is located:

A

A. Left side of the body

22
Q

The rumen of a mature cow will hold approximately:

A

D. 40 gallons

23
Q

The portion of the ruminant digestive system which is known as and functions as the “true” stomach is the:

A

A. Abomasum

24
Q

One of the highest heritability traits for milk is:

A

D. % protein

25
Q

The typical lactation curve shows a dairy cow reaching her peak production about ____ days into the lactation cycle.

A

C. 50-70 days

26
Q

Cows treated with BST typically show an increase in milk production of:

A

B. 10%

27
Q

Dairy producers are particularly watchful for zoonotic diseases in their herd. Zoonotic diseases are defined as those that:

A

C. Pass from animals to humans and vice versa

28
Q

A dairy expects to cull approximately ______% of their herd each year.

A

B. 25-30

29
Q

A Babcock test may be used to measure the ______% of milk.

A

B. Fat

30
Q

Almost 95% of the dairy cows in the U.S. are:

A

D. Holstein

31
Q

Dairy heifers need to be bred at _____ of age assuming they are at least 65% of their adult weight at this time.

A

C. 15 months

32
Q

Producers using BST must give their cows an injection of it every:

A

C. 14 days

33
Q

Most dairies in Texas are considered to be CAFO’s. A CAFO is:

A

D. Concentrated Animal Feeding Operation

34
Q

Dairy cattle were first successfully cloned in the:

A

D. 2000’s

35
Q

Milk traits, i.e. fat protein, SNF and etc., tend to have a heritability of about:

A

B. 20-30%

36
Q

Normal presentation of a calf for parturition will have:

A

A. Front teeth toward rear of cow with head, nose first, between them

37
Q

One ejaculation from a bull typically contains __________ sperm.

A

C. 5,000,000

38
Q

Dairy herds have historically used artificial insemination. Currently approximately _____% of all dairy pregnancies results from A.I.

A

C. 85

39
Q

The annual sale of dairy semen exceeds _____ straws.

A

D. 20,000,000

40
Q

The portion of the ruminant digestive system which consists of many folds of tissue is the:

A

D. Omasum

41
Q

Dairy cows produce milk that is relatively high in B complex vitamins. Because they are ruminants:

A

B. it is not necessary to supplement the intake of vitamin B complex

42
Q

Dairy cattle frequently develop milk fever shortly after calving. They become immobile, comatose, and may die without treatment typically involves:

A

A. Intravenous injection of calcium gluconate

43
Q

A _____ gene in Black and White Holsteins is responsible for the red and white color being expressed at times.

A

D. Recessive

44
Q

A ____ is usually necessary when feeding Dairy Cows TMR rations.

A

C. Mixer box on a truck or trailer

45
Q

Young dairy calves frequently suffer and may die due to scours. The chief cause of deadly scours at this age is:

A

B. The bacteria Escherichia Coli

46
Q

The dairy breed which produces the highest volume of milk is the:

A

A. Holstein

47
Q

Dairy cows need roughage to concentrate ratio of approximately _____ to maintain the desired fat content in the milk

A

B. 40-60

48
Q

A calf’s birth weight is approximately ___% of its mature weight.

A

B. 5

49
Q

The circulatory system of a dairy cow is very important to milk production. A dairy cow must circulate about _____ blood for each pound of milk produced.

A

D. 400 pounds

50
Q

Blood vessels that transport blood away from the heart are called:

A

B. Arteries

Dairy Cattle (7 decks)

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