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Dairy Cattle Basics

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 is Milk Fever paresis caused by?
Twice/day
25-30
Vitamin A
Low blood levvels of ionized calcium

2. Body condition scores form 1 to 5 are used to track herd health and nutrition. Dry cows should have a body score from...
Percentage of Difficult Births in Heifers
3.5-4.0
Vitamin A
Foreign Agricultural Service

3. Colostrum has approximately _____ calcium - as does regular milk.
Two times
Mycobacterium bovis
Oxytocin
25

4. The major advantage of a 'low-line' milk line as compared to the older 'high-line' is...
72
Milk on Demand
Vibriosis
It has a lower vacuum requirement

5. The hooks and pins on an animal relate most closely to the...
5-9 years old
Total Digestible Nutrients
Guernsey
Rump

6. Milk traits - i.e. fat - protein - SNF and etc. - tend to have a heritability of about...
Swollen hock
Between 6.0 and 6.5
Disbudding
20-30%

7. A dairy expects to cull approximately _________% of their herd each year.
25-30
Propionic acid
Mule-foot
400‐500 gallons

8. What percent of crude protein should a calf starter be?
Post-synch
It is not necessary to supplement the intake of Vitamin B complex
75%
16-18

9. Milk let down in a dairy cow may be stimulated by...
Body weight
Feeding the cow
25%
101.5 degrees F

10. According to the American Veterinary Medicine Association - the preferred method of dehorning young calves is_________.
Disbudding
The abomasums of a milk fed calf
Nonprotein nitrogen
Total Mixed Ration

11. A switch on a cow is...
The bottom most part of the tail
Abomasum
Prevent ingested metal objects from interfering with the digestive tract or the respiratory system
A negatively charged ion

12. The breed of dairy cattle that can be roan - all red - all white - or even spotted red and white is...
Feed
Milking Shorthorn
Milk fever
Nitrogen

13. The portion of the ruminant digestive system which consists of many folds of tissue is the...
Poll
2000's
Omasum
Pass from animals to humans and vice versa

14. Dairy cattle frequently develop milk fever shortly after calving. They become immobile - comatose - and may die without treatment. The treatment typically involves...
A negatively charged ion
Vitamin B
Stainless steel
Intravenous injection of calcium gluconate

15. One form of biological pest management is a predator insect - that can be bought and released to help control flies at a dairy. Which of these is NOT true about these predators...
They may be bothersome to livestock and other animals
High % of water
Jersey
Faster

16. Which of the following is the most popular type of cheese in the United States?
Modified Live Virus
Cheddar
Registered Holstein Ancestry
Magnesium

17. For best results calves should be fed colostrum within ____ hours of calving...
Inguinal
6 hours
A national dairy farmer-funded program that is used to help stabilize milk prices
75%

18. Allelomimetic behavior is defined as...
The tendency for a group of animals to do the same thing at the same time
Faster
Displaced abomasum
After each use

19. At what isoelectric point (point at which proteins have net zero charge) do caseins precipitate?
Plate chiller
PH 4.6
40 degrees F
Guernsey and Jersey

20. Hairy Heel Wart is scientifically known as what?
Bovine Somatotropin
Sole
Udder
Digital Dermatitis

21. Which system of the cow's body is most affected by paratuberculosis?
Udder - feet and legs - body form - & dairy character
Digestive
Oxytocin
85

22. In a cow - where would you find the alveolus?
Leukocytes
Dairy character
The tendency for a group of animals to do the same thing at the same time
Udder

23. 98% of somatic cells are...
Leukocytes
Rear feet and legs
During the first pregnancy
Vitamin K

24. Corn silage - stored in upright - top-unloading silos - should be chopped at which percent moisture?
30 hours
62 to 65% moisture
Stainless steel
3 years

25. When evaluating a dairy ration - what do the letters TDN stand for?
25%
10 days
Total Digestible Nutrients
Fats

26. NAFTA
To give birth
North American Free Trade Agreement
Composting
Bone calcium

27. When discussing nutrition - What does NPN stand for?
Lactation records have been adjusted to the same milk fat percentage
Progesterone
Percentage of Difficult Births in Heifers
Nonprotein nitrogen

28. NSC
Two times
Low blood levvels of ionized calcium
Rolling Herd Average
Nonstructural Carbohydrates

29. What is the scientific term for birth?
400 pounds
Parturtion
282 days
40/60

30. In dairy cows - What is the name of the disease caused by the organisms Staph Aureus - Strep Uberis - and Klebsiella?
Attract the opposite sex
Milking Shorthorn
Mastitis
Disbudding

31. Dairy heifers need to bred at ________ of age assuming they are at least 65% of their adult weight at that time.
25-30
Duodenum
Restraint and control of the animal
15 months

32. How much more energy do fats contain per unit the carbohydrates and proteins?
2.25
Bovine Somatotropin
Extremely fat
18

33. 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...
Sodium Bicarbonate
Fat
25-30
10

34. 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?
Bovine Somatotropin
Alfalfa and Clover
2.25
North American Free Trade Agreement

35. _________ is a compound that is fermented for flavor in buttermilk and sour cream.
Citrate
Premis ID
Between 28 to 30 days
Jersey

36. Regarding feed formulation - What does CAD stand for?
62 to 65% moisture
Post-synch
Methane
Cation-Anion Difference

37. The hormone BST is given to dairy cows...
After 200 days of lactation
Mastitis
Inguinal
Neutral Detergent Fiber

38. What is an anion?
Guernsey
6 hours
A negatively charged ion
Reticulum

39. One ejaculation from a bull typically contains _________________ sperm
Plate chiller
Nitrogen excretion
5000000
Cheddar cheese

40. Milk traits - i.e. fat - protein - SNF and etc. - tend to have a heritability of about...
International Dairy Foods Associactions
20-30%
Feed
282 days

41. What units are used to measure energy?
Holstein
Calories
50
Heifer

42. Foot Rot is scientifically known as what?
The initiation of milk secretion
Faster
A negatively charged ion
Interdigital phlegmon

43. How many grams of lactose are in an 8 oz. glass of milk?
Body weight
Udder
They may be bothersome to livestock and other animals
10

44. A rolling herd average (RHA) is based on how many months?
Mule-foot
Prevent ingested metal objects from interfering with the digestive tract or the respiratory system
Twelve
5000000

45. What is the most abundant mineral in the body?
United States Dairy Export Council
Dairy character
25 gallons
Calcium

46. Cows have _____ streak canals per teat.
1
Feed low potassium hay - silage - and anionic salts to dry cows
Corpus Luteum
Allowing them access to their new born calf for the 1st 30 days

47. On the PDCA Unified Dairy Score Card - the category 'feet and legs' accounts for how many points?
20
5
Food Animal Residue Avoidance Databank
Retained placenta

48. Crude fiber in a dietary ration must be at least ___% or milk fat percent will decrease.
18
Preparing cows properly
Dairy Comp 305
Ringworm

49. Heart girth measurements of cows may be used to estimate...
Body weight
After 200 days of lactation
25 gallons
Nitrogen

50. To maintain margins - you should be monitoring and making decisions based on your herd's IOFC. What do the initials IOFC stand for?
Reticulum
Food Animal Residue Avoidance Databank
400‐500 gallons
Income over feed costs