Exam 3

Question 1

T/F: cross breeding of beef cattle takes advantage of hybrid vigor

Answer 1

true

Question 2

T/F: beed cattle that are very thin or very fat may fail to conceive at breeding

Answer 2

true

Question 3

T/F: a beef cow’s body condition score at the time her calf is weaned is most critical to rebreeding performance

Answer 3

true

Question 4

T/F: calves are short day seasonal breeders

Answer 4

true

Question 5

T/F: if you have poor quality colostrum just feed more of it to ensure absorption of antibodies

Answer 5

false

Question 6

T/F: the skin is the first line of defense from invading organisms

Answer 6

true

Question 7

T/F: a colostrometer measures the quality of cheese that colostrum will yield

Answer 7

false

Question 8

T/F: Louisiana is ranked in the top five for total dairy production

Answer 8

false

Question 9

T/F: a dairy cow that is not producing milk is referred to as a wet cow

Answer 9

false

Question 10

T/F: disease is any state other than the state of complete health

Answer 10

true

Question 11

T/F: an intravenous drip of Ca is an appropriate treatment for milk fever

Answer 11

true

Question 12

T/F: a diet refers to the amount of feed fed to an animal, while a ration refers to the mix of feed ingredients fed to an animal

Answer 12

false

Question 13

T/F: horses are commonly treated more for displaced abomasum than laminitis

Answer 13

false

Question 14

T/F: nutrient deficiency diseases result directly from improperly balanced and/or improperly fed rations

Answer 14

true

Question 15

T/F: a disease is not contagious if it is transmitted readily from animal to animal

Answer 15

false

Question 16

T/F: the term freshening refers to the swelling of the udder and usually occurs 24 hours to 3 weeks before birth

Answer 16

true

Question 17

T/F: dairy cows spend roughly 3-5 hours per day eating

Answer 17

true

Question 18

T/F: most microbes are never pathogenic

Answer 18

true

Question 19

T/F: one of the cardinal signs of inflammation: rubor is noted by redness

Answer 19

true

Question 20

T/F: Louisiana is a feedlot state in terms of production

Answer 20

false

Question 21

T/F: a steer is an intact male bovine

Answer 21

false

Question 22

Beef cows should calve at a BCS of ___ and heifers should calve at a BCS of ___

Answer 22

5 and 6

Question 23

Which is a disadvantage for terminal (paternal) cattle breeds

Answer 23

late sexual maturity

Question 24

A breed of cattle that is made up of two or more component breeds and designed to benefit from hybrid vigor without crossing other breeds is known as a

Answer 24

composite breed

Question 25

What is the term used to describe the preparation of beef calves for the feed yard, and usually lasts for 45 days after weaning?

Answer 25

pre-conditioning

Question 26

The average gestation length for cattle (beef and dairy) is

Answer 26

282 days

Question 27

A 1,000 lb mature beef cow would have a _____ dry matter intake per day compared to a 1,200 lb mature beef cow

Answer 27

lower

Question 28

Which of the following beef breed is the most popular and has become the industry standard in the US?

Answer 28

angus

Question 29

______________ refers to the average length in days between calving and next conception

Answer 29

calving interval

Question 30

Which of the following is one of the oldest and most permanent methods of identification of beef cattle?

Answer 30

hot iron branding

Question 31

Which of the following is not considered a Bos Indicus breed of cattle?

Answer 31

Brahman

Question 32

The primary purpose of steed stock producers is to provide ______________

Answer 32

bulls for beef cow/calf operations

Question 33

The body condition scoring system used with beef cattle ranges from __ to __

Answer 33

1 to 9

Question 34

Which of the following is NOT one of the major breeds of dairy cows discussed in class?

Answer 34

South Devon

Question 35

The body condition scoring for dairy cattle ranges from __ to ___

Answer 35

1 to 5

Question 36

Immunization of an animal is an example of _______ immunity

Answer 36

active

Question 37

_________ is the science and business that deals with the production, processing, and marketing of milk and milk products

Answer 37

dairying

Question 38

Weaning for modern dairy calf production is which of the following?

Answer 38

removing the calf from liquid feed

Question 39

Which of the following is not a state of parturition in the dairy cow?

Answer 39

conception

Question 40

Newborn calves are dependent on passive transfer of maternal antibodies from ________

Answer 40

colostrum

Question 41

The _____________ protects animals against microbial invasion and therefore essential for life

Answer 41

immune system

Question 42

Which of the following dairy breeds produce the most milk?

Answer 42

Holstein

Question 43

The average gestation length of a dairy cow is ____ days

Answer 43

283

Question 44

Which of the following is not a major dairy breed in the US?

Answer 44

Belted Galloway

Question 45

Which dairy cattle breed converts less carotene to vitamin A and processes milk with a golden color?

Answer 45

Guernsey

Question 46

How many hours a day do dairy cows spend resting?

Answer 46

12-14 hours

Question 47

Disbudding of dairy calves should be done prior to __ weeks of age

Answer 47

2

Question 48

From the onset of milk letdown, how long is a dairy cow under the influence of oxytocin?

Answer 48

5-6 minutes

Question 49

Which of the following is not a cause of infertility in dairy cattle?

Answer 49

milk fever

Question 50

In dairy cattle, one point one body condition equals ____ to ____ pounds in body weight

Answer 50

100 to 140

Question 51

Which of the following is a disadvantage for maternal (English) cattle breeds?

Answer 51

light muscled

Question 52

In healthy beef cows, body condition score is an indicator of

Answer 52

nutrient intake

Question 53

Two main disadvantages of crossbreeding cattle are

Answer 53

hybrid vigor and breed complementarity

Question 54

_________ diseases don't have readily observable clinical signs

Answer 54

subclinical

Question 55

The _______ immune response is the body's first line of defense against infectious agents, but does not provide specific, long-lasting protection against pathogens

Answer 55

innate

Question 56

The process of determining the nature and severity of a disease is called

Answer 56

diagnosis

Question 57

During the stomach worm life cycle, adult worms lay eggs in which of the following body systems

Answer 57

digestive

Question 58

Which of the following is not a stress factor that can contribute to the onset of a disease?

Answer 58

vaccination

Question 59

Which of the following is NOT a sign of ketosis?

Answer 59

low urine ketones

Question 60

In ruminant animals, _____ is characterized as gas in the rumen and the left side of the abdomen becomes enlarged

Answer 60

bloat

Question 61

Nutrient requirements depend on which of the following?

Answer 61

all of the above: species, age, productive function

Question 62

_______ is caused by increased demands for Ca to support milk production and decreased dry matter intake after calving

Answer 62

milk fever

Question 63

Utilizing body fat for energy in the absence of _____ leads to ketosis

Answer 63

glucose

Question 64

Acidosis is characterized by rumen pH falling below

Answer 64

5.5

Question 65

Grass tetany can be prevented by providing a mineral supplement high in available _________

Answer 65

magnesium

Question 66

Which of the following are the two main causes of scours in dairy calves?

Answer 66

infectious and nutritional