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Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question. |
| | 1. | After storing eggs for five days, hatchability decreases how much per day for each additional day? |
| | 2. | At approximately what temperature should an incubator be maintained? | a. | 85 degrees F | b. | 90 degrees F | c. | 99 degrees F | d. | 104 degrees F | | | | | | | | | | |
| | 3. | Which is not a cause of infertile eggs? | a. | incorrect mating ratio | c. | odd-shaped eggs | | b. | disease | d. | too young males | | | | | | |
| | 4. | Beak trimming of broiler breeders should be done at how many days of age? | a. | 2-5 | b. | 7-10 | c. | 12-15 | d. | 20-23 | | | | | | | | | | |
| | 5. | The first eggs of broiler breeders are normally produced how many days after light stimulation? | a. | 7-14 | b. | 21-28 | c. | 35-42 | d. | 55 | | | | | | | | | | |
| | 6. | The artificial incubation time for a turkey is: | a. | 17 days | b. | 21 days | c. | 28 days | d. | 35 days | | | | | | | | | | |
| | 7. | What type of litter should NOT be used for broilers? | a. | sawdust | c. | corn cobs | | b. | peanut hulls | d. | hardwood shavings | | | | | | |
| | 8. | From 7 days to 7 weeks of age, turkey poults should be given how many square feet of floor space per bird? | a. | 1.0-1.5 | b. | 2.0-2.5 | c. | 3.5-4.0 | d. | 5.0 | | | | | | | | | | |
| | 9. | Egg-strain pullets are usually vaccinated for Marek’s disease at what age? | a. | 10 weeks | b. | 7 weeks | c. | 20 days | d. | 1 day | | | | | | | | | | |
| | 10. | Which of the following is NOT an advantage of using laying cages for commercial egg production? | a. | lower percentage of blood spots | c. | less feed per dozen eggs | | b. | cleaner eggs | d. | less labor requirements | | | | | | |
| | 11. | Just prior to egg production, a pullet’s diet should contain how much protein? | a. | 8% | b. | 13% | c. | 18% | d. | 25% | | | | | | | | | | |
| | 12. | What percent of all eggs laid are uncollectable (broken prior to gathering or pass through cage floor)? | a. | up to 7% | b. | 12% | c. | 15% | d. | 20% | | | | | | | | | | |
| | 13. | Which is NOT a cause of cracked eggs? | a. | temperature | c. | disease | | b. | humidity | d. | % protein in hen’s diet | | | | | | |
| | 14. | The maximum depth of the air cell for an “A” quality egg is: | a. | up to 1/8” | b. | 1/8-3/16” | c. | 3/16-3/8” | d. | 3/8” | | | | | | | | | | |
| | 15. | Pigment in an egg-type hen returns how many times quicker than it took to fade? | a. | 2 times | b. | 3 times | c. | 5 times | d. | 10 times | | | | | | | | | | |
| | 16. | In broiler breeder selection, which is NOT considered a deformity? | a. | green shanks | c. | one solid black feaather in pullets | | b. | one solid black feather in cockerels | d. | blind eye | | | | | | |
| | 17. | In egg-laying hens, which body part is the last to fade? | a. | vent | b. | beak | c. | bottom of foot | d. | shank | | | | | | | | | | |
| | 18. | Which egg part is part of the yolk? | a. | blastoderm | c. | cuticle | | b. | chalaza | d. | mammillary layer | | | | | | |
| | 19. | The temperature of a freshy laid egg is __________? | a. | 99 degrees F | b. | 101 degrees F | c. | 105 degrees F | d. | 120 degrees F | | | | | | | | | | |
| | 20. | Which factor does NOT influence the water evaporation rate of eggs? | a. | age | b. | shell texture | c. | size | d. | temperature | | | | | | | | | | |
| | 21. | Which chicken carcass part consists of the radius and ulna with the meat and adhering skin attached? | a. | wishbone | b. | wing portion | c. | tenderloin | d. | split breast | | | | | | | | | | |
| | 22. | A carton of eggs with mixed colors has what type of defect? | a. | no defect | b. | minor | c. | major | d. | critical | | | | | | | | | | |
| | 23. | Using treated water is the most common way to vaccinate for: | a. | Marek’s disease | c. | Newcastle disease | | b. | Fowl pox | d. | larynogotracheitis | | | | | | |
| | 24. | To get maximum egg production, how many hours of light per day should hens get? |
| | 25. | Bruises on broilers cause what percentage of carcass downgrades? | a. | 10-15 % | b. | 25-30 % | c. | 35-40 % | d. | 50-60 % | | | | | | | | | | |
| | 26. | Your prize winning broilers weigh an average of 3.05 lbs. of saleable dressed weight at market. Since they averaged 75% dressing percentage yield, what was the average live weight of the birds (in pounds)? | a. | 3.5 | b. | 3.8 | c. | 4.1 | d. | 4.3 | | | | | | | | | | |
| | 27. | Your new barn is 30 feet wide and 200 feet long. Since you need 2.5 sqare feet of floor space per bird, what would be the maximum number of birds the barn could hold? | a. | 1,800 | b. | 2,400 | c. | 2,800 | d. | 12,600 | | | | | | | | | | |
| | 28. | If you placed 5,000 eggs in a incubator and 4,400 chicks hatched, what is the percent hatchability? | a. | 4.4 | b. | 44 | c. | 8.8 | d. | 88 | | | | | | | | | | |
| | 29. | Your flock of broilers has a feed conversion of 2.00 pounds of feed per pound of gain. If the feed costs $140 per ton, what is the feed cost per pound of broiler produced? | a. | $0.07 | b. | $0.14 | c. | $0.28 | d. | $2.80 | | | | | | | | | | |
| | 30. | Your laying flock is at the 80 percent production level with 75 percent of the eggs laid being Grade A large. At this level, how many hens will you need to fulfill a contract for supplying 90 dozen Grade A large eggs per day? | a. | 810 | b. | 918 | c. | 1800 | d. | 3600 | | | | | | | | | | |