Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
| 1. | In a
commercial egg laying operation, the producer strives to produce a dozen table eggs on how many
pounds of feed? a. | 2 | c. | 7 or
fewer | b. | 3 to 3.5 | d. | 1.75 to 2.25 | | | | |
|
|
| 2. | At
what point in time is temperature highest for a hatching egg? a. | at
lay | c. | during
pre-warming before setting | b. | in the farm egg room | d. | during incubation | | | | |
|
|
| 3. | Improper pre-warming of hatching eggs before setting may: a. | increase
variation in hatch time | c. | be related to
air circulation | b. | promote condensation, thus encouraging mold
growth | d. | A,B, and C are
correct | | | | |
|
|
| 4. | Most
setters run at approximately degress F and
% relative humidity. a. | 30 and
60 | c. | 99.5 and
50 | b. | 102.5 and
50 | d. | 101 and
60 | | | | |
|
|
| 5. | During incubation, the egg loses approximately what percent of its
weight?
|
|
| 6. | Age
of eggs plays an important role in determining incubation or "setting" time. When
hatching eggs have been "tored" more than
days, incubation time shound be extended
hour(s) each ay of extended
storage. a. | 5,
1 | c. | 4,
0.5 | b. | 6,
1 | d. | 8,
1.5 | | | | |
|
|
| 7. | "Clears" are normally: a. | detected and removed at setting | c. | disposed of in a disinfectant
container | b. | detected and removed at
transfer | d. | B and C are
correct | | | | |
|
|
| 8. | Which
of the following is an important factor regarding the required transportation temperature for baby
chicks from the hatchery? a. | age of the chick | c. | construction material of the chick
boxes | b. | availability of feed and water | d. | age of the driver | | | | |
|
|
| 9. | For
hatchery operations, what is the recommended sanitation procedure for delivery vehicles unsed to
transport chicks to the farm? a. | apply disinfectant and sanitizer before each return to the
farm | c. | soak in
detergent after hatching | b. | power wash with detergent/disinfectant on each return to the
hatchery | d. | detergent
sanitize weekly | | | | |
|
|
| 10. | According to the Broiler Breeder section of the Poultry Science Manual, female broiler
breeders should be targeted to reach sexual maturity at: a. | 15 weeks
age | c. | 25 weeks
age | b. | 20 weeks
age | d. | 30 weeks
age | | | | |
|
|
| 11. | When
brooding and rearing male and female broiler breeders, a target body weight woul be for the makes to
be how much heavier than the females at 24 weeks of age? a. | 40 to
50% | c. | 130% | b. | 140% | d. | 30% | | | | |
|
|
| 12. | Which
of the following "reasons for broiler downgrades" accounts for 50% to 60% of those
carcasses that are downgraded? a. | blisters | c. | poor feathering | b. | rejects | d. | bruises | | | | |
|
|
| 13. | Which
of the following production practices accounts for over 70% of the British Thermal Unit (BTU) energy
used in poultry production? a. | incubation and hatching | c. | "Range" grow out turkeys | b. | breeder
operations | d. | brooding | | | | |
|
|
| 14. | When
diganosing hatching problems in mewly hatched chicks, which of the following conditions may cause
unhealed navels? a. | improper egg
storage | c. | high
temperatures (day 1 to day 19) | b. | high humidity (day 20 to day
21) | d. | A, B, and C are
correct | | | | |
|
|
| 15. | Regarding market broiler nutrition and "recommended nutrient levels" which
of the following statements is accurate? a. | the recommended percent protein content level is highest for a
starter ration | c. | the recommended
percent calcium (Ca) level is lowest for a starter ration | b. | the recommended
kilocalories of metabolizable energy (kcal M.E.) level is highest for a grower
ration | d. | the recommended
percent added fat level is lowet for a grower ration | | | | |
|
|
| 16. | Broiler breeders are normally moved to laying houses at
weeks of age, and first eggs are normally produced
days following light
stimulation. a. | approximately 20
and 28 to 49 | c. | approximately 20
and 21 to 28 | b. | approximately 30 and 20 | d. | approximately 27 and 30 | | | | |
|
|
| 17. | A
general guide for determining litter moisture is to squeeze a handful and observe if it forms a ball
(too wet), breaks up on release, or does not adhere (too dry). Too dry would be moisture
content below
.
|
|
| 18. | Water
consumption monitoring is a veyr important management practice in poultry production. Depending
on the temperature, a chick drinks about how many pounds of water for each pound of feed
consumed? a. | 1 to
2 | c. | 4 to
5 | b. | 2 to
3 | d. | 6 to
7 | | | | |
|
|
| 19. | Feed
consumption monitoring is also important. A rule of thumb in calculating the amount of feed
(pounds) that 100 broilers will consume each week is to multiply the age of the birds (in weeks)
times
.
|
|
| 20. | A
"standard vaccination schedule" for egg-strain pullets includes vaccinating the pullets
agaisnt various strains of Newcastle disease at: a. | 1 day, 8 weeks, and 14 weeks of
age | c. | 10 days, 5
weeks, and 14 weeks of age | b. | 10 days, 12 weeks, and 14 weeks of
age | d. | 5 weeks, 12
weeks and 14 weeks of age | | | | |
|
|
| 21. | In
proper nest management of broiler breeders using conventional nest (not mechanical), which item is
not a recommended practice? a. | floor eggs should be blended through the flats and racks to
avoid concentration of bacterial load in one location within the incubator and
hatcher | c. | pack eggs large
end up | b. | gather eggs at least 4 times a
day | d. | since most eggs
are laid in the morning, collect all eggs before noon and close upper tier nest during
afternoons. Close bottome tier nests overnight to prevent roosting on the nests and
perches | | | | |
|
|
| 22. | From
the information provided in the Broiler Breeded Mangement section of the Poultry Science Manual, what
would be the reasonable and correct approach for a young flock of female breeders that are overweight
and exceed the target standard for their age? a. | Reduce feed consumption gradually until birds reach recommended
target weight for their age | c. | reduce both feed
consumption and dietary energy concentration until the birds reach the recommended weight for their
age | b. | reduce nutrient
concentration in their diet until the birds reach the recommended weight for their
age | d. | maintain the
weight excess until the pullets reah the onset of lay; however feed to target rate of weight
gain | | | | |
|
|
| 23. | In
the preparation of a vaccine water mixture, what might be the purpose for adding powdered skim milk
(1 - 1/6 cups to 5 gallons of water)? a. | precipitate fluorine | c. | enhance the flavor to insure drinking | b. | neutralize
chlorine | d. | cloud mixture to
enhance the appearance of the vaccine | | | | |
|
|
| 24. | A
hatchery ventilation system must ensure that the movement of air is: a. | circular | c. | in the same
direction as the eggs move (that is, from setters to hatchers) | b. | coming from all
directions simultaneously | d. | such that the
air supply for the setters is 10 cfm/1,000 eggs. | | | | |
|
|
| 25. | Grit
is fed primarily to achieve which of the following objectives? a. | increse body
weight to increase grower payment | c. | assist in gridning feed in the
gizzard | b. | replace oyster shell | d. | increase fertility | | | | |
|
|
| 26. | During winter-feeding, a broiler flock should receive an additional 2.5 kilocalories
of energy per hen per day for each degree of in-house temperature below 68 degrees F. This may
be achieved by either increasing feed consumption or by increasing dietary energy
concentration. Assume a flock being fed a breeder diet containing an energy level of 3000
kilocalories per kilogram of feed is consuming 0.33 pound (150 gram) of feed per hen per day at an
in-house temperature of 72 degrees F, and the average in-house temperature drops to 60 degrees
F. To achieve adequate energy consumption on this diet each hen should now consume
grams of feed per
day/ a. | 144 | c. | 156.7 | b. | 150.6 | d. | 166.6 | | | | |
|
|
| 27. | For
the broiler breeder flock desribed in question number 26, assume the average in-house temperature has
now dropped to 58 degrees F. Based on thise change in temperature, how many kilocalories per
day should a hen receive (a kilogram equals 1000 grams)?
|
|
| 28. | In
broiler grow-out operation the house floor space provided is increased from 0.7 square foot per bird
during winter, spring, and fall months to 0.8 square foot per bird during the summer months.
So, a broiler house that is 50 feet wide by 550 feet long has the capacity to
house
broilers during the winter, spring, and fall months, and
broilers during the summer
months. a. | 19250;
22000 | c. | 39286;
34375 | b. | 16000; 14000 | d. | 22000; 19250 | | | | |
|
|
| 29. | Assume that one pound is equal to 453.59 grams. A case of eggs (30 dozen eggs)
weighing 56 pounds (case weight) is set in an incubator. For these eggs, fertility and hatch of
fertile eggs is 95%. At hatch the chicks weigh approximately 67% of the original egg weight at
setting. What is a good estimate of the weight of an individual chick that hatched from these
eggs? a. | 2.5
ounces | c. | 63.7
grams | b. | 70.9 grams | d. | 1.67 ounces | | | | |
|
|
| 30. | A 12
ton load of fresh litter is sampled and determined to be 20 % moisture (water). We wish to dry
the litter to 10% moisture. For the litter to be dried to 10% moisture, how many pounds of
moisture must be removed through dehydration? a. | 2000 lbs. | c. | 1778 lbs. | b. | 2667
lbs. | d. | 1800
lbs. | | | | |
|