Incubation
Parts of the Egg
Embryo Development
Incubation (2)
Parts of the Egg (2)
100
What is a human made container used for hatching eggs?
incubator
100
What is the hard protective covering of the egg called? It is made of calcium carbonate and has pores.
shell
100
The study of the development of an embryo is called ___________________.
embryology
100
We should always do what, before and after we handle the eggs?
wash our hands
100
What is the "white" part of the egg called? This is the main source of protein and water for the embryo.
albumen
200
The temperature in an incubator is measured with a _____________, and the temperature should be ______.
thermometer, 101 degrees F
200
The hard shell is connected to this thin layer, what is it called?
outer shell membrane
200
As the embryo grows, it uses ___________ and gives off carbon dioxide.
oxygen
200
How should we handle the eggs in the incubator?
gently
200
What is the main source of food; containing fat, vitamins, and minerals, for the egg?
yolk
300
Water is kept in the incubator because the eggs need _____________.
moisture
300
What is the thin layer around the watery part of the egg, also protecting the embryo from getting sick?
inner shell membrane
300
What day does the embryo look like a question mark?
day 3
300
We have to turn the eggs everyday, since the temperature in the incubator is ______________.
uneven
300
In a non-fertile egg, the albumen has 2 parts. What is one of those parts called? (adjective)
thick or thin albumen
400
How many days does it take a chicken egg to hatch?
21 days
400
What is the part of the egg that grows in size as the embryo grows, and also allows the embryo to take it's first breath of air?
air cell
400
When is the embryo fully grown, and ready to hatch?
day 18 (through day 21)
400
Good ventilation is important because the embryo needs _______________.
oxygen
400
In a non-fertile egg, the albumen has 2 parts. What is the other part called? (adjective)
thick or thin albumen (whichever one wasn't used yet)
500
The eggs in the incubator need to be turned ____ times a day, and turning the eggs prevents the embryo from _______________________.
3 times a day, sticking to the shell
500
What are the tightly wrapped membranes that keep the yolk centered in the egg called?
chalazae
500
The embryo pips (breaks) open the shell using its ____________________. The chick will be _________________ after it hatches.
egg tooth, wet and tired
500
The eggs should ______________ be put directly into the water pan of the incubator.
never
500
What is the spot on the yolk called? How can we tell if an egg is fertile or non-fertile?
blastodisc, white spot for non-fertile and clear spot for fertile
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