2013 Hoard's Dairyman Youth Quizzes July-Dec 2013 Flashcards
What percent of the food grown on U.S. soil never makesd it to a human mouth?
40%
What component causes the yellow color in milk from certain breeds of dairy cattle?
beta carotene
The initial regrowth of alfalfa after harvest is dependent on carbohydrates that are stored in which part of the plant?
tap root
Immunoglobulins, or antibodies, cannot pass through what organ to reach the unborn calf?
placenta
Which entities(countries) are the three largest suppliers in the global dairy export market?
New Zealand, European Union, Unites States
What icon on grocery items signifies that the product was made from real dairy ingredients?
Real Seal
What country developed and launched a routine evaluation for mastitis resisitance with the release of December 2013 bull proofs?
Canada
Every newborn calf will undergo some degree of distress due to reduced oxygen levels in what part of the body?
blood
IBR (infectious bovine rhinotracheitis) virus primarily impacts what organ system?
reproductive
What nutrient is like “antifreeze” for alfalfa and will help reduce winterkill rates?
potassium
What immunoglobulin does the mucosal immune system (nose, mouth, lungs, intestines) produce?
IgA
When does the lowest blood calcium concentration most often occur in fresh cows?
24 hours after calving
Name 3 common on farm methods used to detect ketosis.
urine strips, milk powders, handheld meters
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?
buffers the rumen (remember the key here is that they are asking about saliva, which we know acts as a buffer!)
What is the popular ice cream flavor among Americans?
vanilla
What were the top three milk-producing regions in 2012?
U.S. Brazil, China
Half of all on-farm accidents are machinery related. Of those, half involved what one piece of equipment?
tractors
What Canadian cow was named the 2013 World Dairy Expo Supreme Champion?
Bonaccueil Maya Goldwyn
When was the most recent Foot and Mouth disease outbreak in the U.S.?
1929
Which state won the National 4-H Dairy Cattle Judging Contest in 2013, and has won the contest 30 additional times in the past?
MARYLAND!! Woot! Woot!
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?
33% (this is one-third)
What is the most valuable component of whey?
protein
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?
15
How often should claw vacuum, vaccum stability, pulsator rate and ratio be evaluated in herds that milk around the clock?
monthly
Pregnancy can be detected by milk or blood samples or transrectal ultrasound how many days after insemination?
28-30 days
Which country is the largest importer of dairy products in the world, absorbing 13.4 % of global exports?
China
As of September 2012, AgStar estimated that how many anaerobic digesters are operating on commercial livestock farms in the U. S.?
192
What percentage of the A. I. breeding population are genomic bulls?
52%
Which are the 3 major enemies of forage inoculants?
heat, moisture, oxygen
Healthy cows will have how many rumen contractions per minute?
1 to 2
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.?
PepsiCo
In the 12 months prior to calving, a heifer should grow how many inches?
6 inches
Which grain is fed to 93% of U.S. cows?
corn
What percentage of cows inseminated the first time after calving become pregnant?
35-50%
What dangerous gas can have a bleach-like odor and under certain conditions be visible as a fog from a distance?
silo gas
For every 100 pounds of milk used to make cheese, a manufacturer can expect to get how many pounds of liquid whey?
90 pounds
Which feed comes from sources like candy, bread, crackers, wafers, cookies, doughnuts or cakes?
bakery waste
U.S. cheese exports grew nearly whar percent in 2012?
16 percent
What does DNB stand for in regards to breeding?
Do Not Breed
At least how many pounds of fat-corrected milk are needed per pound of dry matter fed to “stay in the game”?
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)
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?
rubber
Statistically, we get how many lactations from a dairy cow before she leaves the herd?
less than 3
Cows should have a minimum stall length of how many feet to accommodate body and head space?
8 feet
Which organization has obtained the five-year rights to the Real Seal?
National Milk Producers federation
What does PMR stand for in regards to feeding?
partial mixed ration
When a calf is born, its body is approximately what percent water?
70%
Which group of cows is more sensitive to heat stress?
high-producing cows
At which major sporting event is the winner handed a bottle of milk?
Indianapolis 500
According to the 2011 National Cattlemen’s Beef Association Quality Audit, Holsteins contributed what percent of the U.S. beef supply?
5.50%
What is the third most common cause of death in young calves?
septicemia
