1 $What is the standard incubation period for a chicken egg?$

A.

18 days

B.

21 days

C.

28 days

D.

35 days

2 $In a forced-draft incubator, what is the recommended operating temperature during the setting phase (first 18 days)?$

A.

B.

C.

D.

3 $What is the 'Physiological Zero' temperature for poultry eggs, below which embryonic development ceases?$

A.

()

B.

()

C.

()

D.

()

4 $Which position is recommended for setting eggs in the incubator tray?$

A.

Small end up

B.

Broad end up

C.

Horizontal

D.

Random placement

5 $How often should eggs be turned during the incubation period to prevent the embryo from sticking to the shell membranes?$

A.

Once a day

B.

Twice a day

C.

Minimum 4-6 times a day (ideally hourly)

D.

Turning is not required

6 $At what angle should eggs be tilted during turning in an incubator?$

A.

from vertical

B.

from vertical

C.

from vertical

D.

from vertical

7 $When are chicken eggs typically transferred from the setter to the hatcher?$

A.

14th day

B.

18th day

C.

19th day

D.

21st day

8 $Compared to the setting phase, the relative humidity in the hatcher (last 3 days) should be:$

A.

Lower

B.

Higher

C.

Exactly the same

D.

Zero

9 $What is the primary purpose of candling during incubation?$

A.

To heat the egg

B.

To disinfect the shell

C.

To identify infertile eggs and early embryonic mortality

D.

To soften the shell for hatching

10 $Which chemicals are commonly used for fumigation of incubators and eggs?$

A.

Sodium Chloride and Vinegar

B.

Potassium Permanganate and Formalin

C.

Bleach and Ammonia

D.

Ethanol and Iodine

11 $What is the incubation period for Turkey and Duck (excluding Muscovy) eggs?$

A.

21 days

B.

24 days

C.

28 days

D.

35 days

12 $What is the standard incubation period for Muscovy Duck eggs?$

A.

28 days

B.

30 days

C.

35 days

D.

42 days

13 $The 'Brooding Period' generally refers to which age range of chicks?$

A.

0 to 8 weeks

B.

8 to 20 weeks

C.

20 to 72 weeks

D.

Before hatching

14 $What is the recommended starting temperature under the hover/brooder for day-old chicks?$

A.

B.

C.

D.

15 $What is the standard rule of thumb for reducing brooder temperature as chicks grow?$

A.

Increase by per week

B.

Reduce by per week

C.

Reduce by per week

D.

Keep constant for 4 weeks

16 $If chicks in a brooder are huddled together directly under the heat source, what does this indicate?$

A.

The temperature is too high

B.

The temperature is too low

C.

There is a draft

D.

They are hungry

17 $What is the primary function of a 'chick guard' or 'brooder guard'?$

A.

To prevent predators

B.

To keep chicks confined near the heat source and prevent floor drafts

C.

To separate male and female chicks

D.

To automatically dispense feed

18 $What is the recommended floor space per bird for broilers in a deep litter system up to marketing age?$

A.

0.25 sq. ft.

B.

1.0 sq. ft.

C.

2.5 sq. ft.

D.

5.0 sq. ft.

19 $Which of the following is NOT a desirable quality of litter material used in brooding?$

A.

High moisture absorption

B.

Biodegradable

C.

High thermal conductivity

D.

Free from molds and toxins

20 $What is the 'Grower' stage in layer management?$

A.

0-8 weeks

B.

9-20 weeks

C.

21-72 weeks

D.

72+ weeks

21 $Why is 'Restricted Feeding' practiced during the grower stage of layers?$

A.

To save feed cost only

B.

To prevent obesity and early sexual maturity

C.

To increase egg size immediately

D.

To induce molting

22 $What is the Golden Rule of lighting for growers?$

A.

Always increase light duration

B.

Never increase light duration during the growing period

C.

Keep light duration constant at 24 hours

D.

Provide no light

23 $What is the Golden Rule of lighting for layers (laying phase)?$

A.

Never decrease light duration

B.

Always decrease light duration

C.

Provide varying light daily

D.

Use only blue light

24 $What is the standard photoperiod (light duration) required for optimal egg production in layers?$

A.

8-10 hours

B.

12 hours

C.

16-17 hours

D.

24 hours

25 $Which of the following describes 'Dubbing' in poultry?$

A.

Cutting the beak

B.

Removal of the comb

C.

Removal of the spur

D.

Clipping of wings

26 $What is 'Debeaking' or 'Beak Trimming' primarily used to prevent?$

A.

Feed wastage

B.

Cannibalism and feather pecking

C.

Loud noises

D.

Egg eating only

27 $The calcium content in a Layer ration should be approximately:$

A.

0.5 - 1.0%

B.

1.0 - 1.5%

C.

3.0 - 3.5%

D.

8.0 - 10.0%

28 $Which of the following is a characteristic of a 'Good Layer' when examined for culling?$

A.

Yellow shanks and beak

B.

Small, dry, pale vent

C.

Large, moist, oval vent

D.

Hard and shrunken comb

29 $The bleaching (loss of pigmentation) in yellow-skinned layers occurs in which order?$

A.

Shanks Beak Vent

B.

Vent Eye ring Beak Shanks

C.

Hock Comb Vent

D.

Random order

30 $In a cage system, what is the standard floor space requirement per layer?$

A.

0.2 sq. ft.

B.

0.6 - 0.75 sq. ft.

C.

2.0 sq. ft.

D.

4.0 sq. ft.

31 $What is 'Phase Feeding' in layer management?$

A.

Feeding only during the day phase

B.

Changing feed formulation based on age and production level

C.

Feeding solids and liquids in different phases

D.

Feeding only when birds are molting

32 $What is the 'Haugh Unit' used to measure?$

A.

Shell thickness

B.

Egg weight

C.

Internal egg quality (Albumen height)

D.

Yolk color intensity

33 $Vaccination for Marek's Disease is typically administered at what age?$

A.

Day 1 (at the hatchery)

B.

Week 3

C.

Week 8

D.

Point of lay

34 $The ratio of Potassium Permanganate () to Formalin for standard '1X' fumigation is:$

A.

20 g : 40 ml Formalin

B.

40 g : 20 ml Formalin

C.

10 g : 10 ml Formalin

D.

100 g : 100 ml Formalin

35 $A 'Clutch' in poultry terms refers to:$

A.

The number of eggs laid on consecutive days without a break

B.

A group of chicks hatched together

C.

The type of feed used

D.

A disease symptom

36 $How is Feed Conversion Ratio (FCR) for layers typically calculated?$

A.

B.

(or Kg egg mass)

C.

D.

37 $What is the maximum recommended concentration of Ammonia in a poultry house?$

A.

5 ppm

B.

25 ppm

C.

100 ppm

D.

500 ppm

38 $In artificial incubation, if the temperature is consistently too high, the result is likely to be:$

A.

Late hatching and large chicks

B.

Early hatching and smaller/weak chicks

C.

No effect

D.

Increased hatchability

39 $Which nutrient is specifically increased in 'Layer Breeder' rations compared to commercial layer rations to ensure embryo development?$

A.

Fiber

B.

Manganese, Zinc, and Vitamins (E, B12)

C.

Carbohydrates

D.

Water

40 $What is 'Trap Nesting'?$

A.

A method to catch predators

B.

A nest that traps the hen to record individual egg production

C.

A type of deep litter material

D.

A cage system

41 $The term 'Point of Lay' (POL) usually refers to the age when the flock reaches what percentage of egg production?$

A.

1%

B.

5%

C.

50%

D.

100%

42 $What is 'Induced Molting' or 'Forced Molting'?$

A.

Removing feathers by machine

B.

A management practice to rejuvenate the flock for a second laying cycle

C.

A disease symptom causing feather loss

D.

The natural loss of feathers in chicks

43 $In the concept of 'Sexing', what is the 'Vent Sexing' method based on?$

A.

Color of the down feathers

B.

Length of the primary wing feathers

C.

Visual examination of the rudimentary copulatory organ in the cloaca

D.

DNA testing

44 $Feather sexing is possible in day-old chicks if they are:$

A.

Purebred Leghorns

B.

Late feathering strains

C.

Sex-linked crosses (slow vs fast feathering genes)

D.

Fed high protein diet

45 $Which of the following is a cause of 'Starve-out' in brooding?$

A.

Feeders placed too high or too far from heat

B.

Too much light

C.

High protein feed

D.

Vaccination

46 $What is the standard weight of a large chicken egg?$

A.

30-35 g

B.

40-45 g

C.

58-60 g

D.

75-80 g

47 $The 'Shape Index' of an egg is calculated using:$

A.

B.

C.

D.

48 $Why are eggs usually gathered frequently (3-4 times a day)?$

A.

To count them faster

B.

To prevent broodiness and minimize dirty/cracked eggs

C.

To cool them down immediately

D.

To wash them immediately

49 $The critical periods of embryonic mortality during incubation are:$

A.

Days 10-12

B.

First 3 days and Last 3 days

C.

Days 7-14

D.

Day 1 and Day 21

50 $What is the purpose of providing 'Grit' to growers and layers?$

A.

Source of Vitamin D

B.

To aid in grinding feed in the gizzard

C.

To treat coccidiosis

D.

To color the yolk

Unit 3 - Practice Quiz