2015 SR Exam Questions Flashcards Preview

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Flashcards in 2015 SR Exam Questions Deck (50):
1

What breed of dairy cattle comes in colors of red, white and roan?

milking shorthorn

2

Name a factor that that might be considered when establishing milking groups.

body condition, lactation number, stage of lactation, production, reproductive status

3

Which volatile fatty acid is the primary source of energy and milkfat?

acetic acid

4

What are the basic building blocks of carbohydrates?

monosaccharides or simple sugars

5

Which is more expensive: whole milk, reduced fat milk, or fat-free milk

whole milk

6

WHich parent determines the sex of the off spring?

sire

7

What class of milk is used to make butter and milk in dried form?

Class IV

8

COws that are not cycling properly from a reproductive standpoint are called what?

cystic

9

Name the season of the year when retained placenta incidence is highest?

summer

10

WHat term describes a calf that is born where the tail and the butt come first?

breach

11

As the temperature humidity index rises above what degree, do cows become heat stressed?

64º - 70º

12

According to Dairy Herd Management, what substance can be used in place of concrete in the floors of bunker silos? Is it typically cheaper than concrete and lasts many years longer.

asphalt

13

What hormone produced by the corpus luteum is necessary for maintenance of pregnancy?

progesterone

14

What are the 3 places where pathogenic organisms may gain entry into a newborn calf’s body?

mouth, nose, navel

15

What is the enzyme that breaks down butterfat?

lipase

16

What is the hormone released by the pineal gland in response to longer daylight?

melatonin

17

What does the acronym BTSCC stand for?

bulk tank somatic cell count

18

What term is given to the percent of services that result in a pregnancy?

conception rate

19

The Hoard’s Dairy Judging Contest consists of how many classes?

5 classes

20

How many upper front teeth does a cow have?

0

21

Yogurt must contain a minimum of how much fat?

3.25%

22

Which mineral is most likely to cause toxicity in dairy cattle?

copper

23

You purchased 100 pounds of 8-12-10 fertilizer. How many pounds of nitrogen are in the fertilizer?

8 pounds

24

As a plant ages, what happens to the digestibility?

decreases

25

In udder anatomy, what is strutting?

condition where the teats point out too much

26

Frozen colostrum can be safely stored for how long?

1 year

27

What is the most popular milk sold in the U.S.?

2% Milk

28

What term describes the cyclic opening and closing of the teat cup liner in a milking system?

pulsation

29

What nutrient comprises approximately 75% of a cow by weight?

water

30

During the final stages of fermentation, silage should be at what temperature?

80-85ºF

31

Name the two classifications of amino acids.

essential and non-essential

32

The Department of Public Works in Milwaukee, Wisconsin is using what cheesy new enemy for icy roads?

cheese brine

33

What are two heat detection aids that can be used on a dairy farm?

heat expectancy charts, tail chalk, pedometers, accelerometers, pressure sensors, electronic heat detection systems, detector animals

34

Most milks are fortified with Vitamin D. Why is Vitamin D important in the diet?

builds strong bones and teeth; helps with calcium absorption

35

What part of the animal is used as a reference point to determine the height of the udder floor?

hock

36

What mineral is deficient if you see white muscle disease, low fertility, or retained placenta?

selenium

37

How many pounds of milk does it take to make one pound of authentic Greek yogurt?

4 pounds

38

At what age does a calf begin to chew its cud?

2-3 weeks

39

What is the name of the new facility that replaced the old dairy barns at the site of the World Dairy Expo?

New Holland Pavilion

40

What is one reason brown midrib corn varieties are desirable in a lactating cow’s ration?

decreased lignin content, increased fiber digestibility

41

What is another term for mastication?

chewing cud

42

What does PTI stand for in terms of genetics?

Production-Type Index

43

What is the proper name for Mad Cow Disease?

Bovine SPongiform Encephalopathy

44

Which acid found in milk had been shown to prevent cancer?

conjugated linoleic acid CLA

45

Assuming a 100% heat detection rate, how many cows would be pregnant after the third breeding in a 200 cow breeding herd, with a 50% conception rate?

175

46

What is often added to fat free milk to whiten it?

titanium dioxide

47

A deficiency in this vitamin causes loss of hair and excess salivation?

riboflavin (Vitamin B)

48

How many pounds of silage at 50% moisture must be fed to have 1000 pounds of dry matter?

2000 pounds

49

On average, what percent of cows experience clinical milk fever, characterized by a blood calcium level less than 5 mg/dL?

5%

50

What cells in a cow’s body contain no nucleus?

erythrocytes, red blood cells

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