Dairy Cattle Test
__________ 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
