PPT 16 Commercial Egg Production

Question 1

when do you move pullets in to laying cages?

Answer 1

14-18 weeks

Question 2

what is a big indicator on when to move a pullet?

Answer 2

large body weight

Question 3

when do you want to photostimulate pullets to initiate egg production?

Answer 3

a week before moving them into laying cages

Question 4

when does the production period for commercial layers typically begin?

Answer 4

18 weeks of age

Question 5

when the flock first enters egg production what is the rate of lay?

Answer 5

10-20%

Question 6

when is peak production reached?

Answer 6

when production reaches 90% or around 30-32 weeks of age.

Question 7

post peak occurs after 32 weeks of age. what happens to egg production?

Answer 7

it decreases continually to ~75-80% around 60-70 weeks of age.

Question 8

what is molting?

Answer 8

dropping and replacing of feathers and regress reproductive tract

Question 9

replacing a flock is the second most expensive cost in production. T or F?

Answer 9

True

Question 10

what does inducing molting do?how long does it last?

Answer 10

gives birds rest, lose body weight, and enter new laying cycle. it lasts about 6-8 weeks.

Question 11

Name some ways to induce molting.

Answer 11

darken house, limit nutrients, limit food.

Question 12

how are cages aligned in a laying house?

Answer 12

slanted on wire mesh floors.

Question 13

eggs are mechanically collected and moved into what at the end of each level of cages?

Answer 13

plastic egg handlers

Question 14

T or F. Eggs are rarely handled by humans.

Answer 14

True

Question 15

how do eggs make it to the washers?

Answer 15

conveyor belts

Question 16

eggs are mechanically washed and sanitized in what temperature of water?

Answer 16

120 degrees F

Question 17

At the first egg grading process, eggs are evaluated by automated, computerized detection system and graded into what categories?

Answer 17

AA, A, B, and Loss Quality Standards

Question 18

Overall grade of egg is based on what?

Answer 18

internal and external consistencies(albumen, yolk, air cell, shape, shell soundness, and cleanliness)

Question 19

minimum sizes for each egg size for the following is:
Jumbo?
Extra Large?
Large?
Medium?
Small?
Pee wee?

Answer 19

Jumbo - 30oz./dzn
Extra Large - 27oz./dzn
Large - 24oz./dzn
Medium - 21oz./dzn
Small - 18oz./dzn
Pee wee - 15oz./dzn

Question 20

after the graders eggs go where?

Answer 20

the packaging area of the plant

Question 21

when being transported on brushes what are the two options for the eggs after being graded?

Answer 21

they will be either placed in cartons or sent to the breakers.

Question 22

why are plastic containers used in the plant?

Answer 22

sanitation and recycling purposes

Question 23

what does an egg breaker do?

Answer 23

separates yolk from the albumen.

Question 24

state the parameters for which egg yolks are pasteurized.

Answer 24

a temperature of 145 degrees F is kept for 7 minutes per 3,000 pounds of egg.

Question 25

T or F. Egg shells can be used for animal feed and other products.

Answer 25

True

Question 26

Which housing type (curtain, tunnel, or conventional) creates more manure per hen?

Answer 26

Curtain (1348 tons)