Dairy Cattle Test

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__________ is milk from a cow that has just given birth.

Colostrum

A frightened or upset dairy cow will release __________, which inhibits milk from being let down:

Epinephrine

A hormone called epinephrine stimulates the release, or letdown, process.

False

An enzyme is a substance that slows down or stops a chemical process.

False

Both Grade A and Grade B milk can be used for fluid or beverage milk.

False

Cows can begin producing milk without giving birth.

False

Milk cows are second only to goats in milk production for human consumption.

False

Milk from a cow that has just given birth is usually fit for human consumption.

False

Milk is drawn from the cow to a holding tank where it is rapidly cooled, then frozen.

False

The process that changes sugars to acids is:

Fermentation

To maintain the production of milk, cows must go through the ____________________ process and give birth each year.

Gestation

Milk kept in the tertiary ducts drains into larger ducts that carry the milk to an area called the:

Gland Cistern

About 85 to 90 percent of the dairy cattle in the United States are of the ____________________ breed.

Holstein

Which breed makes up the largest number of dairy cows in America?

Holstein

__________ forces large cream globules through a screen under high pressure and reduces the size of milk globules.

Homogenization

Which of the following is the leading producer of goat milk?

India

In the cow, as milk is secreted by the alveoli, it drains into the____________________, or hollow cavity, in the alveoli.

Lumen

Why is it important to wash and massage the udder before milking?

Maintain cleanliness; stimulate the udder

Which of the following diseases manifests as lumps or blood in milk?

Mastitis

To kill any harmful organisms, milk is heated and cooled in a process called:

Pasteurization

The five leading milk-producing states are Wisconsin, California, New York, Minnesota, and ____________________.

Pennsylvania

The ______ gland releases the hormone oxytocin as the mother cow prepares to be milked or to nurse.

Pituitary

What hormone causes the alveoli to begin secreting milk as a cow nears the time of giving birth?

Prolactin

Sheep's milk has 13 percent more ______ than cow's milk.

Protein

What is the main feed of dairy cattle?

Silage

Milking parlors are designed so that cows can enter ____________________ where they stand while being milked.

Stanchions

As long as the cow is milked or the calf nurses, prolactin stimulates the alveoli to produce milk.

True

Colostrum contains important antibodies for the calf.

True

Ewe's milk has a much higher percentage of solids than does cow's milk.

True

In the United States, sheep milk is used mainly to make cheese.

True

In the cow, the sphincter muscle prevents milk from leaking into the teat.

True

Scientific research has advanced dairy cows to the point where they can produce many times more milk than is needed to feed their calves.

True

The five leading milk-producing states produce more milk each year than all the other states combined.

True

Washing and massaging the udder helps begin the letdown process in the cow.

True

At what age are dairy calves taken from their mothers?

2 days

Whole milk contains ___ percent milk fat.

4

After milk is vacuumed from a cow, it is placed in a holding tank and cooled to ___°F.

40

Milk is composed of ___ percent water.

87

Which of the following is made from goat milk?

All answers :)

The grapelike structures in the cow's udder that synthesize raw materials from the bloodstream into milk are called:

Alveoli


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