Exam 3 Practice Questions Flashcards
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
b. essential
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
c. minerals
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
b. Fat soluble vitamins A, D and E
A primary site for absorption of nutrients for all species is: A. Large intestine b. Rumen c. Small intestine d. Stomach
c. Small intestine
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. acid detergent fiber (ADF)
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. Cecum
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. NPN stands for non-protein nitrogen
When converting pounds of dry matter to pounds of “as-fed”, the weight for as-fed should be greater.
a. True
b. False
a. True
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. True
TDN is a measure of:
a. carbohydrates
b. energy
c. fiber
d. protein
b. energy
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
b. 2-3% of BW in dry matter
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
c. Market Hogs
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. Enzymatic digestion and absorption of nutrients
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
B. 5 - 6
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
C. A maintenance ration for a 1300 lb non-working horse would be roughly 25 lbs of hay per day
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
D. All of the above
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
B. Fats
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
B. B6
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
C. Corn silage
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. Weight of the animal
Phenotype is controlled by:
A. The genotype
B. The environment
C. A combination of the genotype and environment
C. A combination of the genotype and environment
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
B. Expected progeny difference
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
C. Selection Differential
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
E. Both A and B
