Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
|
|
| 1. | In Ohio, which breed of dairy
cattle has the highest average milk yield? a. | Ayrshire | c. | Guernsey | e. | Jersey | b. | Brown Swiss | d. | Holstein | | | | | | |
|
|
| 2. | Which system of the cow’s
body is most affected by Brucella Abortis? a. | circulatory | c. | reproductive | e. | digestive | b. | respiratory | d. | endocrine | | | | | | |
|
|
| 3. | When should cows be fed a
transition diet? a. | prior to dry off | c. | at peak milk
| e. | during mid lactation | b. | around calving
time | d. | at breeding time | | | | | | |
|
|
| 4. | When compared to open cows,
pregnant cows will generally have a higher levels of a. | oxytocin | c. | adrenalin | e. | prostaglandin | b. | estrogen | d. | progesterone | | | | | | |
|
|
| 5. | The hormone which causes the
corpus luteum to regress is called a. | adrenalin | c. | estrogen | e. | oxytocin | b. | prostaglandin | d. | progesterone | | | | | | |
|
|
| 6. | Which age is considered the
best age to start breeding a Holstein heifer? a. | 8-9 months | c. | 14-15
months | e. | 19-20 months | b. | 11-12
months | d. | 16-17 months | | | | | | |
|
|
| 7. | Which compartment of the dairy
cow’s stomach is known as the “honeycomb”? a. | abomasum | b. | reticulum | c. | rumen | d. | omasum | e. | duodenum | | | | | | | | | | |
|
|
| 8. | Which US dairy breed originated
in the northern part of the European continent? a. | Ayrshire | c. | Holstein | e. | Brown Swiss | b. | Guernsey | d. | Jersey | | | | | | |
|
|
| 9. | The structure which supplies
the greatest support of the dairy cow’s udder is the a. | skin | d. | median suspensory ligament | b. | fore udder
attachment | e. | lateral suspensory ligament | c. | rear udder
attachment | | | | |
|
|
| 10. | A glass of skimmed milk
contains about how many calories?
|
|
| 11. | When transferring an embryo,
the usually recommended site in the reproductive tract where the embryo should be deposited is the
a. | ovary | c. | body of the uterus | e. | vagina | b. | uterine
horn | d. | cervix | | | | | | |
|
|
| 12. | Which of the following types of
bedding supports the least bacterial growth? a. | sawdust | c. | composted
manure | e. | shredded paper | b. | straw | d. | sand | | | | | | |
|
|
| 13. | Which of the major breakdown
categories on the Dairy Cow Unified Scorecard has the east value? a. | frame | c. | body capacity | e. | udder | b. | dairy
character | d. | feet and legs | | | | | | |
|
|
| 14. | What percent of offspring from
mating a red-carrier Holstein to another red-carrier Holstein, would be expected to have all red
genes? a. | 0% | b. | 25% | c. | 50% | d. | 75% | e. | 100% | | | | | | | | | | |
|
|
| 15. | In a dairy cattle judging
contest, the official placing is 1-2-3-4 with cuts of 3-5-3. If a perfect score is 50, what would be
the score for a contest who placed the class 3-1-2-4? a. | 41 | c. | 45 | e. | none of these | b. | 42 | d. | 47 | | | | | | |
|
|
| 16. | What percent of feed refusal is
recommended to maximize feed intake in lactating cows? a. | none | b. | 5 to 10% | c. | 15 to 20% | d. | 25 to 30% | e. | 85 to 90% | | | | | | | | | | |
|
|
| 17. | When a dairy animal stands to
be mounted by another animal, it is referred to as: a. | gestation | b. | lactation | c. | puberty | d. | involution | e. | estrus | | | | | | | | | | |
|