2014 JR Exam Questions

Question 1

The CMT is used to detect what type of infection?

Answer 1

mastitis

Question 2

Which of the stomach compartments is closest to the stomach?

Answer 2

reticulum

Question 3

Red, red & white, or roan are the colors used to describe which breed?

Answer 3

Milking Shorthorn

Question 4

In days, how long is the pregnancy period for a dairy cow?

Answer 4

280 days

Question 5

What is another name for a displaced abomasum?

Answer 5

twisted stomach

Question 6

What vitamin is necessary because it helps clot the blood?

Answer 6

Vitamin K

Question 7

If a sperm bearing the Y chromosome fertilizes an egg what sex will the offspring be?

Answer 7

male (XY)

Question 8

What disease is known as acetonemia?

Answer 8

ketosis

Question 9

Which breed of dairy cow has the longest gestation period?

Answer 9

Brown Swiss

Question 10

Which hormone blocks milk let-down?

Answer 10

adrenaline

Question 11

What do the initials A.I. stand for when talking about breeding cows?

Answer 11

artificial insemination

Question 12

What type of milking parlor is the most common in use today?

Answer 12

herringbone

Question 13

For a calf to be called a spring heifer calf, what months does she have to be born?

Answer 13

March, April, May

Question 14

What is another name for the corpus luteum?

Answer 14

yellow body

Question 15

What is the main function of the omasum?

Answer 15

dehydration of feed (squeezing all water out of feed0

Question 16

What substance should a newborn animal’s navel be dipped in?

Answer 16

iodine

Question 17

What is the name for a substance that has a pH below 7?

Answer 17

below 7 - acid (above 7 - base)

Question 18

In the rumen carbohydrates are converted into VFA’s. VFA stands for what?

Answer 18

volatile fatty acids

Question 19

What is the only part of the milking system that touches the cow?

Answer 19

teat cup liner

Question 20

Who is the current US Secretary of Agriculture?

Answer 20

Tom Vilsack

Question 21

What magazine is known as the “national dairy farm magazine”?

Answer 21

Hoard’s Dairyman

Question 22

What is the normal respiratory rate for a cow?

Answer 22

30 breaths per minute

Question 23

How often should a bulk tank be washed and sanitized?

Answer 23

every time it is emptied

Question 24

The main type of mastitis that is characterized by visible abnormalities in the udder or milk is called?

Answer 24

clinical mastitis

Question 25

What do the letters USDA stand for?

Answer 25

United States Department of Agriculture

Question 26

Why would a farmer use copper sulfate on a dairy farm?

Answer 26

as a foot bath additive

Question 27

When posing your COW for the judge, her rear leg closest to the judge should be where?

Answer 27

slightly forward of the other leg

Question 28

What is a record of ancestry?

Answer 28

pedigree

Question 29

What is the primary protein found in milk?

Answer 29

casein

Question 30

Which breeds can be identified by a photo or sketch?

Answer 30

Holstein, Guernsey, Ayrshire

Question 31

What breed is the smallest dairy cattle breed?

Answer 31

Jersey

Question 32

What is the name for the clusters of milk secreting cells in the udder of a dairy cow?

Answer 32

alveoli

Question 33

What is the period when a cow is not producing milk?

Answer 33

dry

Question 34

The process that turns cream into butter is called what?

Answer 34

churning

Question 35

On average, how many days are there between heat periods in a dairy cow?

Answer 35

21 days

Question 36

What part of the back lies between the withers and the middle of the back on both dairy cows and dairy goats?

Answer 36

chine

Question 37

Why do farmers put a K-MAR patch on the rump of their cows?

Answer 37

to detect heat

Question 38

What is the term for an animal that never grows horns because of its genetic make-up?

Answer 38

polled

Question 39

Approximately how much blood must be pumped thru the udder to produce one pound of milk?

Answer 39

400 LBS

Question 40

How may teeth does a mature dairy cow have?

Answer 40

32

Question 41

Which of the cow’s stomach compartments is the largest?

Answer 41

rumen

Question 42

The correct place to give an intramuscular injection is where?

Answer 42

neck

Question 43

Milk is usually fortified with what two vitamins?

Answer 43

Vitamin A and D

Question 44

Classification is the term used for comparing a cow or doe to what?

Answer 44

the ideal for her breed

Question 45

What is the animal’s safety zone?

Answer 45

flight zone

Question 46

Name three sources of genetic change in a population?

Answer 46

migration, mutation, selection

Question 47

What three colors are found in registered Holsteins?

Answer 47

black, white, red

Question 48

What is the normal body temperature of a healthy calf?

Answer 48

102.5 ºF

Question 49

Perennials have a life cycle of how long?

Answer 49

more than two years