Practice Exam Key 101-150 Flashcards
1
Q
- The gestation time for cattle is:
A
283 days
2
Q
- Which trait has the highest heritability estimate in cattle?
A
Post-weaning rate of gain
3
Q
- The average age of puberty in sheep is:
A
6 months
4
Q
- A cattle producer that produces breeding stock including bulls and females for cow-calf operations is commonly called a:
A
seedstock/purebreed breeder
5
Q
- The most important factor when formulating a ration for livestock is:
A
Total digestive nutrients
6
Q
- The gestation time for sheep is:
A
148 days
7
Q
- Heifers most commonly reach puberty at the average age of:
A
7 months
8
Q
- Estrus in cattle usually occurs every:
A
21 days
9
Q
- EPD stands for:
A
Expected progeny difference
10
Q
- A market where cattle are sold by public bidding, with the animals going to the highest bidder is known as a(n):
A
Auction market
11
Q
- In swine, a male that has been castrated before reaching sexual maturity is called a:
A
Barrow
12
Q
- A system that is used for trading contracts for future delivery of cattle is known as:
A
Futures markets
13
Q
- In 1985, a one dollar per head checkoff for every head of beef sold in the United was established as a result of the passage of the:
A
Beef Promotion and Research Act
14
Q
- The process of placing sperm in the female reproductive tract by some other means than natural mating is known as:
A
Artificial insemination
15
Q
- The process of preparing calves for the stress of being moved into the feedlot is called:
A
Preconditioning
16
Q
- The rate or percentage of animals becoming pregnant.
A
Conception rate
17
Q
- The removal of all or part of the tail from sheep is referred to as:
A
Docking
18
Q
- A method of animal identification that is a puncture in the skin of numbers or letters is known as:
A
Tatoo
19
Q
- A selective form of breeding in which the sire and dam are related which some refer to as a mild form of inbreeding is called:
A
Linebreeding
20
Q
- The average daily gain for growing cattle on full feed.
A
3 pounds a day
21
Q
- Which of the following traits is considered undesirable when judging market lambs?
A
Early maturing
22
Q
- Cattle are in a class of animals which consume only plant products known as
A
Herbivores
23
Q
- The gestation time for swine is:
A
114 days
24
Q
- When evaluating swine performance data, litter weights are adjusted to a standard of how many days?
A
21 days
25
126. The most common swine identification system is:
Ear notching
26
127. The mating of animals of different family lines within the same breed is:
Outcrossing
27
128. The testes produce sperm cells and the male sex hormone:
Testosterone
28
129. The age at which an animal reaches sexual maturity is:
Puberty
29
130. The length of the estrus cycle for a ewe is:
14 to 20 days
30
131. The estrus cycle in swine occurs:
Every 21 days
31
132. The process of taking food nutrients through the intestinal wall is:
Absorption
32
133. The reflex and response that an animal has at birth is:
Instinct
33
134. The normal body temperature of sheep and swine is:
Above 102 degrees
34
135. Sheep and cattle both have multiple stomachs referred to as a(n):
Ruminant
35
136. The growth and development of animals prior to birth.
Prenatal
36
137. A permanent change in the genotype of an offspring from that of its parents.
Mutation
37
138. An impairment that affects the performance of the vital life functions.
Disease
38
139. The most common sheep identification system is:
Ear tags
39
140. What hormone is produced primarily by the ovaries in female animals?
Estrogen
40
141. Cattle have how many pairs of chromosomes?
30
41
142. The use of living organisms or their products (livestock production) is also known as:
Biotechnology
42
143. External fat on a lamb carcass is measured between which two ribs?
12 and 13
43
144. The tube that carries air to an animal’s lungs.
Trachea
44
145. The use of liquid nitrogen for storage of semen and embryos.
Cyropreservation
45
146. The expected yield of a hog with a USDA quality grade of No. 1 is:
60.4% or greater
46
147. The most important wholesale cut of lamb is
The leg
47
148. The age of the beef animal and the amount of ________ of the carcass.
Quality grade
48
149. The amount of fat cover on a market lamb is referred to as:
Finish
49
150. When evaluating sheep, the term that refers to ruggedness and stamina is:
Constitution
50
101. A method of animal identification that uses very low temperature to change pigment
color of the skin is:
Freeze brand
