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Dairy Cattle > #101-150 > Flashcards

#101-150 Flashcards

1
Q

A perfect score for a cow according to the Dairy Cow Unified Score Card is:

A

100

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2
Q

What is a TMR to a dairy person?

A

Total Mixed Ration

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3
Q

Brucellosis is also known as:

A

Bangs

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4
Q

Dry cows need 0.8 percent K in their diet. What element is K?

A

Potassium

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5
Q

Alfalfa is an example of_____in a dairy ration.

A

Roughage

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6
Q

A rolling herd average (RHA) is based on how many months?

A

Twelve

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7
Q

What does the term freshen mean in relation to dairy production?

A

To give birth

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8
Q

Protein is a combination of amino acids. The amino acids are unique among compounds involved in nutrition because they contain what element?

A

Nitrogen

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9
Q

Body condition scores from 1 to 5 are used to track herd health and nutrition. Dry cows should have a body score from:

A

3.5-4.0

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10
Q

Which part of the digestive tract is responsible for absorbing excess water?

A

Large intestines

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11
Q

The first feeding of colostrum should equal about______percent of the calf’s body weight?

A

5

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12
Q

All U.S. dairy are inspected by state inspectors through a program coordinated by the Food and Drug Administration. Inspectors follow a publication called PMO. What does PMO stand for?

A

Pasteurized milk ordinance

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13
Q

After insemination, how long do sperm live in cow’s reproductive tract?

A

24 hours

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14
Q

What describes the fraction of the ration proteins, which is broken down by digestive enzymes and utilized by rumen bacteria?

A

% Degradable proteins

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15
Q

What are the two types of ovarian cysts?

A

Follicular and luteal

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16
Q

Colostrum has approximately______calcium, as does regular milk.

A

Two times

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17
Q

Which reproductive condition results when the fetal membranes remain within the uterus for an extended period following parturition?

A

Retained placenta

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18
Q

What percent of the cows feed intake is consumed during the daylight hours?

A

70%

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19
Q

When is the best time to feed anionic salts to dairy cows?

A

Two weeks prior to calving

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20
Q

What are the four composite indexes calculated by the Holstein Association?

A

Udder, feet and legs, body form, & dairy character

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21
Q

Approximately how many gallons of blood pass through the udder for each gallon of milk produced?

A

400-500 gallons

22
Q

The standard length of the dry period in dairy cattle is______?

A

60 days

23
Q

What machine is used to determine if water has been added to milk?

A

Cryoscope

24
Q

The two main problems that effect reproduction are:

A

Heat detection and conception rates

25
Q

Name the three common places Coliforms are found.

A

Mud, water, and manure

26
Q

What type of mastitis is the easiest to cure?

A

Streptococus agalactae

27
Q

When can a heifer calf born twin to a bull be registered?

A

When it is proven that she will breed

28
Q

When does the greatest mammary tissue growth occur during a cow’s life?

A

During the first pregnancy

29
Q

Each animal inherits certain genes from both parents. What percentage of genes does a calf receive from it’s sire?

A

50 percent

30
Q

What is the hormone that causes Uterine contractions to assist in parturition?

A

Oxytocin

31
Q

Coccidia infection can occur when calves are 4 to 8 weeks old. Coccidia causes:

A

Eneritis

32
Q

Which major dairy breed association was the first to use computers to maintain breed registry records?

A

Guernsey

33
Q

Reduced gestation length and retained placenta typically are the first symptoms of_____vitamin deficiency

A

Vitamin A

34
Q

Generally, high-producing Holsteins eat______pounds of dry matter per day?

A

45-55

35
Q

What is the most essential nutrient in animal feeding animals and maintaining health?

A

Water

36
Q

Why is fat added to dairy rations?

A

To add a concentrated form of energy

37
Q

A milking herd’s TMR should be available to cows how many hours throughout the day?

A

20 to 24

38
Q

The most common pathogen found in raw milk is:

A

Escherichia coli

39
Q

In what year did the Holstein Association start it’s program of recording carriers of Undesirable Recessive Traits?

A

1957

40
Q

A free martin is considered a

A

Sterile heifer born twin to a bull

41
Q

A mutation where a calf is born with a single toe on one or more feet is called

A

Mule-foot

42
Q

A mutation where calves have little of no control over the movement of their legs is called

A

Limber leg

43
Q

Limber leg is found most often in the______dairy breed?

A

Jersey

44
Q

Mule-foot is found most often in____dairy breed?

A

Holstein

45
Q

Bovine Progressive Degenerative Myeloencephalopathy (BPDME) is better known as Weaver Syndrome@ because of

A

The weaving gait of affected cattle

46
Q

“Weaver Syndrome” is most often found in the______dairy breed?

A

Brown Swiss

47
Q

What is lactogenesis?

A

The initiation of milk secretion

48
Q

Fear can disrupt milk letdown in a cow. The hormone released that causes this disruption is:

A

Epinephrine

49
Q

Lactation is unique to_____.

A

Mammals

50
Q

Endocrinology is the science dealing with______.

A

Hormones

Dairy Cattle (7 decks)

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