#201-250 Flashcards

1
Q

What is the average production lifetime of a dairy cow?

A

3 years

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2
Q

An average Holstein cow should give_____pounds per day for each lactation.

A

50

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3
Q

A cow’s gestation period is_____long?

A

282 days

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4
Q

HTST is a________

A

Pasteurizing system

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5
Q

What combines the Predicted Transmitting Ability for protein,fat,type and udder composite index and ranks the animal on its ability to transmit a balance of these four traits.

A

Total Production Index

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6
Q

Jersey cattle are characterized by having a ______face:

A

Dished face

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7
Q

Milk sugars are not very soluble. Some people have difficulty hydrolyzing them in their bodies. This problem is called________.

A

Lactose intolerance

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8
Q

Fermented forage plants relates to:

A

Silage

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9
Q

What does the acronym IPM stands for?

A

Integrated pest management

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10
Q

In the standard protocol for cleaning milk equipment, which of the following is not one of the four phases of cleaning.

A

Back flushing

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11
Q

Feeding proper rations during the summer is important for both cow comfort and maintaining milk production. Which nutrient is most during the summer months.

A

Water

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12
Q

What percent of lactating dairy cows have oxytocin in their bloodstreams during milking.

A

100%

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13
Q

The medical name tarsal hygroma, a common aliment of dairy cows is commonly called:

A

Swollen hock

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14
Q

This bacteria causes “Circling Disease” in cattle:

A

Listeria

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15
Q

Fumonsin and zearalenone are examples of:

A

Mycotoxins

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16
Q

Which of the following is a compartment of the dairy cows stomach?

A

Abomasum

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17
Q

When using sexed semen, conception rates are_______ percent of the conception rates achieved when using unsexed semen under the same conditions?

A

50-80%

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18
Q

According to recent USDA surveys, what is the most popular age to wear dairy calves?

A

9 weeks

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19
Q

In the reproductive tract of a dairy cow, how many uterine horns are there?

A

Two

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20
Q

The number one reason for culling in U.S. dairy herds is:

A

Reproductive failure

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21
Q

Which of the following is not a commonly used estrus synchronization program for dairy cattle?

A

Post-synch

22
Q

In which breed of cow is the incidence of milk fever most common?

A

Jersey

23
Q

Milk with over_______ somatic cell count cannot legally be shipped in the United States?

A

750,000

24
Q

The vitamin plays a role in the coagulation of blood:

A

Vitamin K

25
Q

Manure digesters convert_______ fuel into electricity.

A

Methane

26
Q

What is a common name for infectious kerato conjunctivitis?

A

Pink eye

27
Q

Which one of the following is not classified as a fat-soluble vitamin?

A

Vitamin B

28
Q

Which compartment of a dairy cow’s stomach is located closest to the heart and it is a spot where hardware disease occurs?

A

Reticulum

29
Q

Which purebred dairy breed association introduced a “dairy price stabilization” program in 2009?

A

Holstein

30
Q

In a sire’s proof, daughters’ calving measures_______.

A

The influence of the sire of the cow on calving ease.

31
Q

To maintain margins, you should be monitoring and making decisions based on your herd’s IOFC. What do the initials IOFC stands for?

A

Income over feed costs

32
Q

Which of the following diseases in not causes by a virus?

A

Laminitis

33
Q

How many chromosomes does the nucleus of each reproductive cell have in dairy cattle?

A

30

34
Q

If a dairy bull has been genetically tested to deter mine his genomic make-up, this will be indicated on his pedigree by what letters?

A

GTPI

35
Q

The most costly form of mastitis is?

A

Subclinical

36
Q

Which of the following is the most popular type of cheese in the United States?

A

Cheddar

37
Q

“Thurl position” is a trait evaluated in the_______ category on the PDCA Unified Scorecard?

A

Rear feet and legs.

38
Q

The only aspect of milk quality that can be completely controlled on the farm is______.

A

Drug residue

39
Q

The Global Dairy Agenda for Action is a pledge to reduce______ emissions in an attempt to address global warming?

A

Carbon

40
Q

Dairy Management Inc. introduced the______ social media program for dairy advocates?

A

myDairy

41
Q

Milk that is low in SCC has more casein, which is a primary Component in________?

A

Cheese

42
Q

Which hormone produced by the uterus caused regression of the corpus luteum?

A

PGF

43
Q

When a cow comes into heat every few days, she is referred to as?

A

Cystic

44
Q

Fats are broken down by a dairy cow in what part of her body?

A

Small intestine

45
Q

Which dairy breed originated in the central part of the European Continent?

A

Brown Swiss

46
Q

Which system of the cow’s body is most affected by partatuberculosis?

A

Digestive

47
Q

What is the sex chromosome configuration of a male calf?

A

XY

48
Q

On the PDCA Unified Dairy Score Card, the category “dairy strength” accounts for how many points?

A

25

49
Q

On the PDCA Unified Dairy Score Card, the category “feet and legs” accounts for how many points?

A

20

50
Q

Which one of the following is the largest dairy milk marketing cooperative in U.S.?

A

Dairy Farmers of America