2013 Hoard's Dairyman Youth Quizzes July-Dec 2013

Question 1

What percent of the food grown on U.S. soil never makesd it to a human mouth?

Answer 1

40%

Question 2

What component causes the yellow color in milk from certain breeds of dairy cattle?

Answer 2

beta carotene

Question 3

The initial regrowth of alfalfa after harvest is dependent on carbohydrates that are stored in which part of the plant?

Answer 3

tap root

Question 4

Immunoglobulins, or antibodies, cannot pass through what organ to reach the unborn calf?

Answer 4

placenta

Question 5

Which entities(countries) are the three largest suppliers in the global dairy export market?

Answer 5

New Zealand, European Union, Unites States

Question 6

What icon on grocery items signifies that the product was made from real dairy ingredients?

Answer 6

Real Seal

Question 7

What country developed and launched a routine evaluation for mastitis resisitance with the release of December 2013 bull proofs?

Answer 7

Canada

Question 8

Every newborn calf will undergo some degree of distress due to reduced oxygen levels in what part of the body?

Answer 8

blood

Question 9

IBR (infectious bovine rhinotracheitis) virus primarily impacts what organ system?

Answer 9

reproductive

Question 10

What nutrient is like “antifreeze” for alfalfa and will help reduce winterkill rates?

Answer 10

potassium

Question 11

What immunoglobulin does the mucosal immune system (nose, mouth, lungs, intestines) produce?

Answer 11

IgA

Question 12

When does the lowest blood calcium concentration most often occur in fresh cows?

Answer 12

24 hours after calving

Question 13

Name 3 common on farm methods used to detect ketosis.

Answer 13

urine strips, milk powders, handheld meters

Question 14

Effective fiber counters the acid produced from the digestion of starches and sugars by stimulating saliva production. What effect does this have on the rumen?

Answer 14

buffers the rumen (remember the key here is that they are asking about saliva, which we know acts as a buffer!)

Question 15

What is the popular ice cream flavor among Americans?

Answer 15

vanilla

Question 16

What were the top three milk-producing regions in 2012?

Answer 16

U.S. Brazil, China

Question 17

Half of all on-farm accidents are machinery related. Of those, half involved what one piece of equipment?

Answer 17

tractors

Question 18

What Canadian cow was named the 2013 World Dairy Expo Supreme Champion?

Answer 18

Bonaccueil Maya Goldwyn

Question 19

When was the most recent Foot and Mouth disease outbreak in the U.S.?

Answer 19

1929

Question 20

Which state won the National 4-H Dairy Cattle Judging Contest in 2013, and has won the contest 30 additional times in the past?

Answer 20

MARYLAND!! Woot! Woot!

Question 21

With last year’s wet spring followed by a dry summer, more attention is being given to forage sorghums. What percent less water do sorghums require for growth than corn?

Answer 21

33% (this is one-third)

Question 22

What is the most valuable component of whey?

Answer 22

protein

Question 23

An ideal packing density can be achieved in a bunk by monitoring the rate of delivery, depth of the layer, and weight of the pack tractor. A producer should target a density benchmark of how many pounds of dry matter per cubic foot?

Answer 23

15

Question 24

How often should claw vacuum, vaccum stability, pulsator rate and ratio be evaluated in herds that milk around the clock?

Answer 24

monthly

Question 25

Pregnancy can be detected by milk or blood samples or transrectal ultrasound how many days after insemination?

Answer 25

28-30 days

Question 26

Which country is the largest importer of dairy products in the world, absorbing 13.4 % of global exports?

Answer 26

China

Question 27

As of September 2012, AgStar estimated that how many anaerobic digesters are operating on commercial livestock farms in the U. S.?

Answer 27

192

Question 28

What percentage of the A. I. breeding population are genomic bulls?

Answer 28

52%

Question 29

Which are the 3 major enemies of forage inoculants?

Answer 29

heat, moisture, oxygen

Question 30

Healthy cows will have how many rumen contractions per minute?

Answer 30

1 to 2

Question 31

Which major food company recently entered into a joint venture with German company Theo Mueller Group to produce Greek-style yogurt in the U.S.?

Answer 31

PepsiCo

Question 32

In the 12 months prior to calving, a heifer should grow how many inches?

Answer 32

6 inches

Question 33

Which grain is fed to 93% of U.S. cows?

Answer 33

corn

Question 34

What percentage of cows inseminated the first time after calving become pregnant?

Answer 34

35-50%

Question 35

What dangerous gas can have a bleach-like odor and under certain conditions be visible as a fog from a distance?

Answer 35

silo gas

Question 36

For every 100 pounds of milk used to make cheese, a manufacturer can expect to get how many pounds of liquid whey?

Answer 36

90 pounds

Question 37

Which feed comes from sources like candy, bread, crackers, wafers, cookies, doughnuts or cakes?

Answer 37

bakery waste

Question 38

U.S. cheese exports grew nearly whar percent in 2012?

Answer 38

16 percent

Question 39

What does DNB stand for in regards to breeding?

Answer 39

Do Not Breed

Question 40

At least how many pounds of fat-corrected milk are needed per pound of dry matter fed to "stay in the game"?

Answer 40

1.5 pounds (this question is asking how much milk do your cows need to produce when thinking about how much you spend on feed, in order to make a profit)

Question 41

A recent study from the Journal of Dairy Science found that mature equivalent fat and protein production during the first lactation were greater for cows on what type of flooring?

Answer 41

rubber

Question 42

Statistically, we get how many lactations from a dairy cow before she leaves the herd?

Answer 42

less than 3

Question 43

Cows should have a minimum stall length of how many feet to accommodate body and head space?

Answer 43

8 feet

Question 44

Which organization has obtained the five-year rights to the Real Seal?

Answer 44

National Milk Producers federation

Question 45

What does PMR stand for in regards to feeding?

Answer 45

partial mixed ration

Question 46

When a calf is born, its body is approximately what percent water?

Answer 46

70%

Question 47

Which group of cows is more sensitive to heat stress?

Answer 47

high-producing cows

Question 48

At which major sporting event is the winner handed a bottle of milk?

Answer 48

Indianapolis 500

Question 49

According to the 2011 National Cattlemen's Beef Association Quality Audit, Holsteins contributed what percent of the U.S. beef supply?

Answer 49

5.50%

Question 50

What is the third most common cause of death in young calves?

Answer 50

septicemia