Name: 
 

2002 National Dairy Cattle Test


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
What name is given to antibodies present in colostrum that are necessary to give passive immunity to newborn calves?
a.
Immunoglobulins
c.
Vitamins
e.
Mitochondria
b.
Proteins
d.
Carbohydrates
 

 2. 
Which dairy breed originated in the northern part of the European continent?
a.
Ayrshire
c.
Holstein
e.
Milking Shorthorn
b.
Brown Swiss
d.
Jersey
 

 3. 
Which of the following is not a compartment of the dairy cow’s stomach?
a.
Abomasum
b.
Jejunum
c.
Rumen
d.
Omasum
e.
Reticulum
 

 4. 
How many gallons of water does the average lactating dairy cow consume daily?
a.
5-10
b.
10-20
c.
30-50
d.
60-80
e.
over 100
 

 5. 
The hormone which initiates or signals, the onset of lactation is
a.
Adrenalin
c.
Oxytocin
e.
Prolactin
b.
Estrogen
d.
Progesterone
 

 6. 
Which system of the cow’s body is most affected by paratuberculosis?
a.
Circulatory
c.
Reproductive
e.
Digestive
b.
Respiratory
d.
Endocrine
 

 7. 
Which of the following is considered a part of a cow’s “topline”?
a.
Withers
c.
Loin
e.
All of these are correct
b.
Chine
d.
Rump
 

 8. 
Which of the following is not a part of the reproductive tract of the cow?
a.
Ovaries
d.
Cervix
b.
Cowpers gland
e.
None of these are correct
c.
Vulva
 

 9. 
What is the more common name by which “BSE” is known?
a.
Mad Cow Disease
c.
Shipping Fever
e.
Bloat
b.
Grubs
d.
Hairy warts
 

 10. 
Due to environmental regulations, which nutrient should be limited to 0.38% of the lactating cow’s ration?
a.
Carbon
b.
Calcium
c.
Niacin
d.
Nitrogen
e.
Phosphorus
 

 11. 
Which system of the cow’s body is primarily affected by “LDA”?
a.
Nervous
c.
Reproductive
e.
Digestive
b.
Respiratory
d.
Endocrine
 

 12. 
On the PDCA Unified Dairy Cow  Card, “body capacity” accounts for how many points?
a.
10
b.
15
c.
20
d.
30
e.
40
 

 13. 
What is the “normal” rectal temperature of a dairy cow?
a.
94-95°F
c.
101-102°F
e.
105-106°F
b.
98-99°F
d.
102-103°F
 

 14. 
An increase in what compound is the result of rapid degradation of adipose tissue in the cow’s body?
a.
Amino acids
c.
Fatty acids
e.
Ketones
b.
Ammonia
d.
Peptides
 

 15. 
How many chromosomes does the nucleus of each gamete have in dairy cattle?
a.
15
b.
24
c.
30
d.
32
e.
60
 

 16. 
What is the name of the tiny, finger-like structures which line the interior of the small intestine?
a.
Alveoli
c.
Mitochondria
e.
Villi
b.
Cilia
d.
Papillae
 

 17. 
Which body condition score is considered inadequate for a dairy cow during peak production?
a.
0.5 to 1.0
d.
3.5 to 4
b.
1.5 to 2.0
e.
0.5 to 1.0 and 1.5 to 2.0
c.
2.5 to 3.0
 

 18. 
Name the recently deleted genetic defect in Holsteins which causes malformed neck, spine, and rear legs.
a.
BSE
b.
BVD
c.
CVM
d.
DVM
e.
FMD
 

 19. 
The normal pH of the dairy cow’s rumen is:
a.
7.0-7.9
b.
6.0-6.9
c.
5.0-5.9
d.
4.0-4.9
e.
3.0-3.9
 

 20. 
The best temperature for thawing frozen semen is considered to be:
a.
Ice Bath
d.
92-96°F
b.
Room Temperature
e.
100°C
c.
75-80°C
 

 21. 
For optimum fermentation of forage to produce high quality silage, it is necessary to exclude
a.
Oxygen
b.
Water
c.
Phosphorus
d.
Nitrogen
e.
Sunlight
 

 22. 
What reproductive hormone tends to be high in lactating pregnant cows?
a.
Oxytocin
c.
Prostaglandin
e.
Estrogen
b.
Progesterone
d.
Relaxin
 

 23. 
What is the process called whereby fat globules are broken down to a small, uniform size?
a.
Pasteurization
d.
Standardization
b.
Clarification
e.
Equalization
c.
Homogenization
 

 24. 
If the MUN level is considered high, which nutrient is likely to be in excess?
a.
Fats
c.
Vitamins
e.
Protein
b.
Carbohydrates
d.
Minerals
 

 25. 
Which vitamin(s) is(are) not fat soluble?
a.
A
b.
B-complex
c.
D
d.
E
e.
A, D, and E
 

 26. 
If a cow is fed 7 pounds of alfalfa hay, how many pounds of dry matter does that likely contribute to her ration?
a.
0.70
b.
3.50
c.
5.25
d.
6.30
e.
7.00
 

 27. 
How many hours after insemination must pass before a sperm is considered capable of fertilizing an ovum?
a.
0-2
b.
6-8
c.
10-12
d.
16-18
e.
22-24
 

 28. 
Which of the following is NOT a postpartum disease of dairy cattle?
a.
Abortion
d.
Obturator Paralysis
b.
Milk Fever
e.
Prolapsed Uterus
c.
Retained Placenta
 

 29. 
The structure which supplies the greatest amount of support to the dairy cow’s udder is the
a.
Skin
d.
Median Suspensory Ligament
b.
Fore Udder Attachment
e.
Lateral Suspensory Ligament
c.
Rear Udder Attachment
 

 30. 
The USDA has estimated that at least what percent of US dairy herds are infected with M. Paratuberculosis?
a.
5
b.
10
c.
20
d.
40
e.
60
 

 31. 
A glass of “skim” milk contains about how many calories?
a.
80
b.
120
c.
160
d.
240
e.
320
 

 32. 
Which portion of the cow’s digestive tract is most subject to “twisting”?
a.
Abomasum
b.
Omasum
c.
Reticulum
d.
Rumen
e.
Duodenum
 

 33. 
The primary acid involved in proper fermentation of feedstuffs, making up 65-70% of the total is
a.
Acetic
c.
Butyric
e.
Lactic
b.
Propionic
d.
Hydrochloric
 

 34. 
What percentage of offspring from the mating of two heterozygous black and white Holsteins is expected to be black and white?
a.
100
b.
75
c.
50
d.
25
e.
0
 

 35. 
What is the term used to describe the release of the egg from the follicle?
a.
Fertilization
c.
Lactation
e.
Folliculation
b.
Gestation
d.
Ovulation
 



 
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