#101-150

Question 1

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

Answer 1

100

Question 2

What is a TMR to a dairy person?

Answer 2

Total Mixed Ration

Question 3

Brucellosis is also known as:

Answer 3

Bangs

Question 4

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

Answer 4

Potassium

Question 5

Alfalfa is an example of_____in a dairy ration.

Answer 5

Roughage

Question 6

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

Answer 6

Twelve

Question 7

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

Answer 7

To give birth

Question 8

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

Answer 8

Nitrogen

Question 9

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

Answer 9

3.5-4.0

Question 10

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

Answer 10

Large intestines

Question 11

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

Answer 11

5

Question 12

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?

Answer 12

Pasteurized milk ordinance

Question 13

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

Answer 13

24 hours

Question 14

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

Answer 14

% Degradable proteins

Question 15

What are the two types of ovarian cysts?

Answer 15

Follicular and luteal

Question 16

Colostrum has approximately______calcium, as does regular milk.

Answer 16

Two times

Question 17

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

Answer 17

Retained placenta

Question 18

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

Answer 18

70%

Question 19

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

Answer 19

Two weeks prior to calving

Question 20

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

Answer 20

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

Question 21

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

Answer 21

400-500 gallons

Question 22

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

Answer 22

60 days

Question 23

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

Answer 23

Cryoscope

Question 24

The two main problems that effect reproduction are:

Answer 24

Heat detection and conception rates

Question 25

Name the three common places Coliforms are found.

Answer 25

Mud, water, and manure

Question 26

What type of mastitis is the easiest to cure?

Answer 26

Streptococus agalactae

Question 27

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

Answer 27

When it is proven that she will breed

Question 28

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

Answer 28

During the first pregnancy

Question 29

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

Answer 29

50 percent

Question 30

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

Answer 30

Oxytocin

Question 31

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

Answer 31

Eneritis

Question 32

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

Answer 32

Guernsey

Question 33

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

Answer 33

Vitamin A

Question 34

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

Answer 34

45-55

Question 35

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

Answer 35

Water

Question 36

Why is fat added to dairy rations?

Answer 36

To add a concentrated form of energy

Question 37

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

Answer 37

20 to 24

Question 38

The most common pathogen found in raw milk is:

Answer 38

Escherichia coli

Question 39

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

Answer 39

1957

Question 40

A free martin is considered a

Answer 40

Sterile heifer born twin to a bull

Question 41

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

Answer 41

Mule-foot

Question 42

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

Answer 42

Limber leg

Question 43

Limber leg is found most often in the______dairy breed?

Answer 43

Jersey

Question 44

Mule-foot is found most often in____dairy breed?

Answer 44

Holstein

Question 45

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

Answer 45

The weaving gait of affected cattle

Question 46

"Weaver Syndrome" is most often found in the______dairy breed?

Answer 46

Brown Swiss

Question 47

What is lactogenesis?

Answer 47

The initiation of milk secretion

Question 48

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

Answer 48

Epinephrine

Question 49

Lactation is unique to_____.

Answer 49

Mammals

Question 50

Endocrinology is the science dealing with______.

Answer 50

Hormones