2013 JR Exam Questions Flashcards
The “Red Bloodlines” is the breed publication of which breed?
Red and White Holstein
The practice of flushing an embryo from one cow and placing it in another is known as what?
embryo transfer
What milk component affects the amount of cheese one can get from a pound of milk?
protein
What dairy breed is known for producing milk with a golden color?
guernsey
What is another name for twisted stomach?
displaced abomasum
Which breed of dairy cattle produces milk witht the highest percent of butterfat?
Jersey
What is green chop?
forages harvested in the field and fed directly to livestock (not stored like silage)
The walls of the rumen are lined with tiny projections called what?
papillae
What logo is found on dairy products to show they are true dairy products?
real seal
What vitamin is added to milk during processing to help prevent rickets?
vitamin D
What do the initial A.I. stand for when talking about breeding cows?
artificial insemination
What is the most common type of milking parlor in use today?
herringbone
What is used to identify Brucellosis in cattle?
milk ring test
What is another name for the corpus luteum?
yellow body
What is the main function of the omasum?
dehydration of feed
Undigested feed and waste is excreted through where?
anus
In which country did the Ayrshire breed originate?
Ayr, Scotland
In the rumen, carbohydrates are converted into VFA’s. What does VFA stand for?
volatile fatty acid
What is the only part of the milking system that touches the cow?
teat cup liner
Who is the current Secretary of Agriculture?
Tom Vilsack
What city holds the National 4-H Dairy Conference?
Madison, Wisconsin
What is the normal respiratory rate for a cow?
30 breaths per minute
What is the primary digestive process in the rumen?
fermentation of feedstuffs
The main type of mastitis that is characterized by visible abnormalities in the udder or in the milk is called what?
clinical mastitis
What do the letters USDA stand for?
United Sates Department of Agriculture
The process that destroys disease producing bacteria is called what?
pasteurization
How long after birth should a calf be fed colostrum?
3 days
What is a record of ancestry?
pedigree
What is the primary protein found in milk
casein
Wrapped round bales of silage are called what?
baleage
What breed is the smallest dairy breed?
Jersey
What is the name for the clusters of milk secreting cells in the udder of the dairy cow?
alveoli
What are two structural carbohydrates that the dairy animal can use as a source of energy?
cellulose and hemicellulose
What is the process that turns cream into butter?
churning
On average, how many days are there between heat periods in a dairy cow?
21 days
As soon as the cow leaves the milking parlor is a peak time for cuncumption of what nutrient?
water
Why do farmers put a K-Mar patch on the rump of their cows?
to detect heat
What is the method of permamnent ID for the Ayrshire breed?
photo or sketch
When is the most effective time to treat mastitis infections?
at dry off
How many teeth does a mature cow have?
32
Which of the cow’s stomach compartments is the largest?
rumen
Where is the correct place to give an intramuscular shot/
neck
What category receives the most points under the PDCA Dairy Cow Unifed Scorecard?
udder (40)
Approximately how much blood must be pumped through the udder to produce one pound of milk?
400 pounds
Classification is the term used when you compare a cow or a doe to what?
the ideal for her breed
When showing a dairy animal, which direction should you parade before the judge?
clockwise
Name three methods one can use to change a population’s genetic make-up.
migration, mutation, selection
What three colors are found in registered Holsteins?
red, black, white
What is the normal body temperature of a haelthy calf?
102.5 degrees
What state has the highest number of dairy cows?
California
