Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AS-101 > Exam 3 Practice Questions > Flashcards

Exam 3 Practice Questions Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards Psychology 101 flashcards Chemistry 101 flashcards Biology 101 flashcards Organic Chemistry 101 flashcards Sociology 101 flashcards
1
Q

The type of amino acids that are needed by the animal and that cannot be synthesized by the animal are:

a. dietary
b. essential
c. necessary

A

b. essential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following classes of nutrients are most likely to become toxic if consumed in excess

a. carbohydrates
b. fats
c. minerals
d. proteins

A

c. minerals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which of the following is NOT a product of rumen microbes that is utilized by the animal?

a. B-vitamins
b. Fat soluble vitamins A, D and E
c. Proteins
d. Volatile fatty acids

A

b. Fat soluble vitamins A, D and E

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q 
A primary site for absorption of nutrients for all species is: 
A. Large intestine 
b. Rumen 
c. Small intestine 
d. Stomach
A

c. Small intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q 
Which of the following provides a more accurate indication of forage digestibility? 
a. acid detergent fiber (ADF)
b. Crude fiber 
C. crude protein 
d. Total digestible nutrients (TDN)
A

a. acid detergent fiber (ADF)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where is the site of microbial fermentation in the digestive system of a horse?

a. Cecum
b. Rumen
c. Small intestine
d. Large intenstine

A

a. Cecum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Which of the following is true regarding NPN?

a. NPN stands for non-protein nitrogen
b. NPN in best utilized by young, growing monogastrics
c. NPN is composed primarily of C, H, and O
d. All of the above

A

a. NPN stands for non-protein nitrogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

When converting pounds of dry matter to pounds of “as-fed”, the weight for as-fed should be greater.

a. True
b. False

A

a. True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When converting the percentage of a nutrient in “as-fed” feed to the percentage in dry matter, the nutrient concentration will increase (will be higher when expressed as a % of dry matter.)

a. True
b. False

A

a. True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

TDN is a measure of:

a. carbohydrates
b. energy
c. fiber
d. protein

A

b. energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Normal consumption of beef cows is approximately

a. 1-1.5% of BW in dry matter
b. 2-3% of BW in dry matter
c. 2-3% of BW, measured in as-fed weight
d. 4-5% of BW, measured in dry matter

A

b. 2-3% of BW in dry matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Split sex feeding and phase feeding is used most often with which species and/or type?

a. Beef Cows
b. Beef feedlot steers
c. Market Hogs
d. Pregnant ewes

A

c. Market Hogs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the two major functions of small intestine?
A. Enzymatic digestion and absorption of nutrients
B. Physical breakdown and chemical digestion by acid
C. Chemical (acid) and enzymatic digestion
D. Absorption of nutrients and water resorption

A

A. Enzymatic digestion and absorption of nutrients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

If the feeding program for your beef cows is adequate nutritionally and you are not wasting money on unnecessary feed, your cows should be in what range of condition scores throughout the year?
A. 2 - 3
B. 5 - 6
C. 8 – 9

A

B. 5 - 6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following is true regarding nutrient needs of different types of horses?
A. Nearly all horses require some type of concentrate feed in the daily ration.
B. A mature working horse will require a higher percent protein in their diet than a weanling (just weaned, less than one year of age) horse
C. A maintenance ration for a 1300 lb non-working horse would be roughly 25 lbs of hay per day

A

C. A maintenance ration for a 1300 lb non-working horse would be roughly 25 lbs of hay per day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

VFA’s or Volatile fatty acids:
A. Result from the breakdown of cellulose by microbes.
B. Are a major source of energy for ruminants.
C. Are a major source of energy for horses.
D. All of the above

A

D. All of the above

17
Q

Which of the following classes of nutrients is the most energy dense, that is they supply the most calories per pound of feed?
A. Carbohydrates
B. Fats
C. Proteins

A

B. Fats

18
Q 
Which of the following is a water- soluble vitamin which can be synthesized by microbes in the rumen? 
A. A 
B. B6 
C. E 
D. D
A

B. B6

19
Q 
Which of the following feedstuffs would have the most difference between the as- fed nutrient content and the nutrient content on a DM basis? 
A. Alfalfa hay 
B. Corn 
C. Corn silage 
D. Soybean meal
A

C. Corn silage

20
Q

Which of the following would NOT be a consideration when determining the nutrient requirements of an animal?
A. Weight of the animal
B. Expected average daily gain
C. What feedstuffs are available
D. The type of digestive system of the animal (i.e. ruminant or monogastirc)

A

A. Weight of the animal

21
Q

Phenotype is controlled by:
A. The genotype
B. The environment
C. A combination of the genotype and environment

A

C. A combination of the genotype and environment

22
Q

The amount that the average offspring of an animal is expected to perform above the average of the population is the ______ for that animal.
A. Breeding value
B. Expected progeny difference
C. Selection differential

A

B. Expected progeny difference

23
Q 
Which of the following is NOT an factor that affects the amount of genetic change that can be made per year? 
A. Heritabilty 
B. Environmental factors 
C. Selection Differential 
D. Generation interval
A

C. Selection Differential

24
Q 
Given that black is dominant to red, if a homozygous black male is mated to a homozygous red female, all the offspring will be: 
A. Black 
B. Heterozygous 
C. Red D. Homozygous 
E. Both A and B
 F. Both C and D
A

E. Both A and B

25
Q

Two main reasons for crossbreeding are:
A. Increase heritability and heterosis
B. Complement strengths of different breeds and increase heterosis
C. Increase hybrid vigor and expected progeny differences

A

A. Increase heritability and heterosis

26
Q

An expected progeny difference (EPD) is:
A. Currently one of our best tools available for genetic selection
B. The amount by which the average offspring of the animal is expected to exceed the
average of the population
C. Used to compare genetic potential
D. All of the above

A

D. All of the above

27
Q

In which of the following traits would you expect to make the fastest genetic progress?
A. Average daily gain
B. Age at puberty
C. Rib eye area

A

C. Rib eye area

28
Q

The percent of phenotypic variation that is due to genetics and that can be passed on from parents to offspring is:
A. Heritability
B. Heterosis
C. Hybrid vigor

A

A. Heritability

29
Q 
If you mate a bull from whom you expect 600 lb. average weaning weight calves to cows that average 400 lb. weaning weight calves, yet the calves average a 540 lb. weaning weight, the additional 40 lbs. over the average of the parents is due to: 
A. High heritability of weaning weight 
B. Unexpected environmental effects 
C. Heterosis 
D. None of the above
A

C. Heterosis

30
Q

DNA testing has the most potential benefit for producers with traits:
A. That are highly heritable
B. That are easy to measure
C. That are “post-selection”, e.g. carcass quality and palatability
D. All of the above

A

C. That are “post-selection”, e.g. carcass quality and palatability

31
Q

In which livestock species do embryos develop along the entire length of the uterine horns?

a. Beef
b. Equine
c. Sheep
d. Swine

A

d. Swine

32
Q

In what female organ does fertilization occur?

a. Ovaries
b. Oviduct
c. Uterus
d. Cervix

A

b. Oviduct

33
Q

The structure that keeps the uterus tightly sealed off from external contamination during most times is the:

a. Vulva
b. Vagina
c. Cervix

A

c. Cervix

34
Q

The primary purpose of the male accessory sex glands is to:

a. Produce sperm
b. Produce testosterone
c. Add fluids and nutrients to semen
d. All of the above

A

c. Add fluids and nutrients to semen

35
Q

What are two major functions of the testes?

a. Storage and maturation of sperm
b. Production of sperm and seminal fluid
c. Production of sperm and testosterone

A

c. Production of sperm and testosterone

36
Q

The scrotum
a. Provides protection and support for the testes.
b. Provides temperature regulation for the testes by relaxing and lowering the testes
during cold weather and contracting and raising the testes during hot weather.
c. Both of the above

A

c. Both of the above

37
Q

Scrotal circumference is used as a selection tool in cattle because it is an indicator of the age of puberty

a. True
b. False

A

a. True

AS-101 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions