2013 INT Contest Questions

Question 1

What can change the genetic make-up of a population?

Answer 1

mutation, selection, migration

Question 2

Spell Oberhasli!

Answer 2

OBERHASLI

Question 3

Give 3 causes for mastitis.

Answer 3

failure to teat dip, poor housing/environment, poor milking practices, faulty milking equipment, poor sanitation, stray voltage

Question 4

Name 3 symptoms of clinical mastitis.

Answer 4

flakes, clots, stringy milk, watery milk, hot quarter, swollen quarter, presence of blood

Question 5

What is the cow’s first line of defense against mastitis?

Answer 5

keratin

Question 6

What is the common name for traumatic gastritis?

Answer 6

hardware diesease

Question 7

How long is the average standing heat?

Answer 7

2-12 hours with an average of 7 hours

Question 8

What is the most concentrated dietary energy source for dairy cattle?

Answer 8

fats

Question 9

Give two uses for ultrasound.

Answer 9

pregnancy check, determine sex, monitor cystic ovaries

Question 10

What are the 4 elements used to calculate DCAD value?

Answer 10

sodium, potassium, chlorine, sulfur

Question 11

What is the most economically detrimental parasite?

Answer 11

brown stomach worms

Question 12

How many alleles are on each locus?

Answer 12

two alleles on each locus++

Question 13

Vitamin E functions much like what mineral?

Answer 13

selenium

Question 14

What is the basic unit of inheritance?

Answer 14

gene

Question 15

At what temp is the water used to wash a bulk tank?

Answer 15

160 degree

Question 16

What is a polysaccharride?

Answer 16

several simple sugars linked together form a polysaccharide,

Question 17

How can heat damage in haylage be determined?

Answer 17

dark color, burnt odor

Question 18

A lack of what mineral causes grass tetany?

Answer 18

magnesium

Question 19

What measure shows how well nitrogen and fermentable carbohydrates are balanced in the ration?

Answer 19

MUN - milk urea nitrogen

Question 20

What is considered the best material for covering a bunker silo?

Answer 20

plastic

Question 21

What is ADG and how is it used?

Answer 21

average daily gain, used to monitor growth rates in heifers

Question 22

When does estrogen level peak?

Answer 22

peaks at standing estrus (heat)

Question 23

Name the two first limiting amino acids.

Answer 23

methionine, lysine

Question 24

What is a sanitary trap and how is it used?

Answer 24

a vessel between the milk and air sysytems to limit the movement of liquids and other contaminants between the two systems

Question 25

A decrease on a milk fat test could be caused by what?

Answer 25

finely chpped feed, low fiber content, illness, estrus, hot weather

Question 26

The corpus luteum is present during what stage of the estrous cycle?

Answer 26

diestrus

Question 27

Define RFV

Answer 27

relative feed value - number used to determine market quality of hay, expressed as a percent

Question 28

How often is the genetic base for USDA-AIPL genetic evaluations updated?

Answer 28

every five years

Question 29

Name a requirement for adequate, effective cleaning of milking systems.

Answer 29

time, temperature, concentration

Question 30

Give an example of a high protein concentrate.

Answer 30

soybean meal **

Question 31

Name 3 diseases that can cause abortions.

Answer 31

brucellosis, listeriosis, neospors, IBR

Question 32

Name three raw milk quality tests.

Answer 32

acid degree value, freezing point, SCC, antibiotic test

Question 33

Give three things found on a feed label.

Answer 33

name of feed, ingredients, directions, guaranteed analysis (this gives things like crude protein, crude fat, calcium, salt, etc.), cautions, name of company making feed

Question 34

What do the letters CV mean on a Holstein pedigree?

Answer 34

animal carries gene for CVM - complex vertebral malformation - CV is genetic code, TVM means tested and is not a carrier

Question 35

What is involution?

Answer 35

the process where the udder reverts to a non-milking-producing state after drying off

Question 36

What is a springing heifer?

Answer 36

A heifer that will deliver her calf in 2-3 weeks.

Question 37

Name 3 estrus synchronization programs.

Answer 37

Ovsynch, Pre-Synch, Heat-Synch, Co-Synch

Question 38

What percent of bodyweight should a calf be fed in milk or milk replacer per day?

Answer 38

What percent of bodyweight should a calf be fed in milk or milk replacer per day?

Question 39

What are the top 3 states for pounds of milk per cow for 2012?

Answer 39

1) New Mexico, 2) Arizona, 3) Colorado

Question 40

In order to qualify for "Star of the Breed Award" where must a cow place in a National show?

Answer 40

must place in top 5

Question 41

How many pounds per day must a Holstein calf gain to be the correct body size for breeding at the most beneficial time?

Answer 41

1-1.5 lbs/day

Question 42

When browsing seed catalogs and silage plot reports, it is important to focus on what three factors?

Answer 42

yield (how much corn it will produce), starch content (which delivers energy to cow), fiber digestibility (how easy it will be for cow to digest)

Question 43

What is a laceration?

Answer 43

a cut

Question 44

The letters HL represent the genetic code for what?

Answer 44

hairless

Question 45

During what season would a human being need to supplement Vitamin D?

Answer 45

winter

Question 46

Where in the dairy cow is the milk stored before milking?

Answer 46

teat cistern

Question 47

Define pathogen.

Answer 47

any microorganism that causes disease

Question 48

What temperature should milk be stored at in a bulk tank to maintain the best quality?

Answer 48

UNDER 40 degrees

Question 49

What is a toxin?

Answer 49

a poison produced by microorganisms that kills cells

Question 50

Milk in a bulk tank must be cooled to what temperature, and in what time frame?

Answer 50

must be cooled to 45 degrees or less within two hours

Question 51

What is the average pounds of milk production per day per cow in the US?

Answer 51

73 pounds of milk/ day

Question 52

What is amylase, what is its purpose, and where is it found?

Answer 52

enzyme that digests starches, found in saliva and small intestine

Question 53

What measure shows how well nitrogen and fermentable carbohydrates are balanced in the ration?

Answer 53

MUN - milk urea nitrogen

Question 54

What is the benefit of a highly digestinle forage?

Answer 54

a highly digestible forage can reduce feed costs by allowing the farmer to remove grain from the ration, and support higher feed intake and milk yeild

Question 55

What is udder edema?

Answer 55

swelling of the udder, (due to excessive amounts of lymph accumulating between the skin and udder tissue)