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Test your basic knowledge |
Dairy Cattle Basics
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What do nonstructural carbohydrates consist of?
Dairy Comp 305
Plant starch - pectin - and sugar
Niacin
Body weight
2. The portion of the milker unit that first receives the milk as it is withdrawn from the cow is the...
Rumen
2000's
Claw
Fat
3. A Milking herd's TMR should be available to cows how many hours throughout the day?
20 to 24
Potassium
300 + degree
They may be bothersome to livestock and other animals
4. Which hormone produced by the uterus causes regression of the corpus luteum?
Blind quarter
PGF
Back flushing
Front feet toward rear of the cow with head - nose first - between them
5. To dairymen - the most harmful disease impacting milk production and their economic bottom line is...
85
3-6 minutes
Claw
Mastitis
6. When sanitizing milking equipment with water - the temperature must be a minimum of 170 degrees F and the utensils are to be under the flow of water for ____________ minute(s).
Oxytocin
Bone calcium
5
400 pounds
7. NSC
Subclinical
Nonfat Dry Milk
Guernsey
Nonstructural Carbohydrates
8. When feeding close-up cows a calcium deficient diet - which gland is simulated?
PH 4.6
Energy
Parathyroid gland
Abomasum
9. Dairy rations - especially those for high producing cows - may be buffered to maintain a desirable rumen pH. The most common buffering agent for this is...
Mastitis
Water
They may be bothersome to livestock and other animals
Sodium Bicarbonate
10. What kinds of relationship do cattle and the microorganisms in their rumen share?
Symbiotic
Increase - 5
40 degrees F
Large intestines
11. How is a dairy's RHA calculated?
Oxytocin
Potassium
Negative net energy balance
By dividing the total amount of milk produced in the past 365 days by the total number of cow years in the herd last year.
12. USAHA
It is not necessary to supplement the intake of Vitamin B complex
Symbiotic
Parathyroid gland
You S Animal Health Association
13. Coccidia infection can occur when calves are 4 to 8 weeks old. Coccidia causes...
10 days
Enteritis
5
Lignin
14. Which one of the following is the name of the part of the cow's back that lies between the withers and the loin?
Chine
Vitamin K
Negative net energy balance
20-30%
15. In order to prevent bloat - the feed additive Poloxalene is often added to feed rations for cows that are grazing. Which of the following grazed forages are most likely to cause bloat?
Prevent ingested metal objects from interfering with the digestive tract or the respiratory system
Sole
Alfalfa and Clover
Roughage
16. Dairy cows need roughage to concentrate ratio of approximately ______________ to maintain the desired fat content in the milk.
After 55 days
Rolling Herd Average
40/60
Between 28 to 30 days
17. On the PDCA Unified Dairy Score Card - the category 'feet and legs' accounts for how many points?
5-9 years old
In the cell wall
2.25
20
18. Milk let down in a dairy cow may be stimulated by...
Nitrogen
Jersey
Faster
Feeding the cow
19. Heritability for milk production in dairy cattle is...
Nonstructural Carbohydrates
Loin and chine
30%
The bacteria Escherichia Coli
20. At how many days can pregnancy be detected by palpation?
National Milk Producers Federation
Udder - feet and legs - body form - & dairy character
Between 14 and 35 days
Poll
21. What is the sex chromosome configuration of a male calf?
Mastitis
Nitrogen excretion
XY
Poor
22. In reference to reproduction - What does CL stand for?
16-18
Corpus Luteum
20 to 24
Mycobacterium bovis
23. What acid is formed when nonstructural carbohydrates are digested in the rumen?
Propionic acid
Clipping and singeing
25%
Nitrogen excretion
24. The two U.S. dairy breeds that originated in the Channel Islands off the coast of France are...
Guernsey and Jersey
Arteries
Dished
Cows Milk production this month divided by production last month X 100
25. What is Milk Fever paresis caused by?
Escherichia coli
8.62 pounds
Restraint and control of the animal
Low blood levvels of ionized calcium
26. What is the reasonable score for body condition at mid-lactation?
Guernsey and Jersey
3.0
Digital Dermatitis
Omasum
27. NFO
Lignin
Once every 12 months
40/60
National Farmers Organization
28. The dairy breed which produces the highest volume of milk is the...
24 hours
Administered via blood vessels
Holstein
Extremely fat
29. Feeding bulky feeds during the dry period and gradually bringing fresh cows back on grain are ways to prevent...
Displaced abomasum
They may be bothersome to livestock and other animals
European Union
Relative Forage Value
30. Protein is a combination of amino acids. The amino acids are unique among compounds involved in nutrition because they contaIn what element?
Feed
Rump
Nitrogen
Premis ID
31. The milk produced on a dairy must be moved through a system of components and piping made from...
Energy
5000000
Stainless steel
Magnesium
32. What is the most essential nutrient in animal feeding animals and maintaining health?
Chine
Two weeks prior to calving
Water
50-80%
33. The number one reason for culling in U.S. dairy herds is...
Negative net energy balance
Reproductive failure
Clipping and singeing
Parturtion
34. What is subcutaneous injection?
Milking Shorthorn
Administered under the skin
Mule-foot
Rolling Herd Average
35. Cow comfort has been linked to milk production in numerous research studies. Not an example of a way to improve cow comfort used by dairymen?
Two times
Escherichia coli
Predicted Transmitting Ability-Type
Allowing them access to their new born calf for the 1st 30 days
36. What trait with the only positive genetic correlation to milk production?
Dairy character
MyDairy
Solids removal
400 pounds
37. The dairy breed which produces the highest volume of milk is the...
Percentage of Difficult Births in Heifers
Nonstructural Carbohydrates
72
Holstein
38. USAHA
Inguinal
Rear feet and legs
You S Animal Health Association
72
39. The topline of a cow is made up of the...
Texas Commission on Environmental Quality
Nonfat Dry Milk
High % of water
Loin and chine
40. Cows treated with BST typically show an increase in milk production of...
101.5 degrees F
10%
30 hours
% Degradable proteins
41. When examining feed rations - what do the letters NDF stand for?
Premis ID
A national dairy farmer-funded program that is used to help stabilize milk prices
Neutral Detergent Fiber
It has a lower vacuum requirement
42. A disease causing air bubbles under the skin and usually results in rapid death is __________.
Black leg
Bone calcium
Four or more times
20 to 24
43. Approximately how many gallons of blood pass through the udder for each gallon of milk produced?
Zinc
400‐500 gallons
Magnesium
Collecting the methane gas being produced and using it as an energy source on the dairy
44. What percent of milk is water?
Farm Service Agency
Roughage
87%
Holstein
45. A condition of low blood calcium - which results in partial paralysis of the cow is known as __________________.
GTPI
Energy
Arteries
Milk fever
46. What machine is used to determine if water has been added to milk?
Clipping and singeing
400‐500 gallons
To add a concentrated form of energy
Cryoscope
47. Corn silage stored in sealed upright silos should be ensiled at what moisture?
Brown Swiss
No less than 60% moisture
Sodium Bicarbonate
Cryoscope
48. NFO
National Farmers Organization
Poor
Texas Commission on Environmental Quality
High % of water
49. CCC
Rolling Herd Average
40 degrees F
Commodity Credit Corporation
NAtional Research Council
50. When evaluating a dairy ration - what do the letters TDN stand for?
5
Percentage of Difficult Births in Heifers
NAtional Research Council
Total Digestible Nutrients