"4-H teaches science and life skills at school, home and on the Web".

Each egg in the incubator is checked to see how the embryo is growing. The eggs may be checked several times before they hatch.

Embryo Photo Credits: The embryo preparation, photos and text are by Dr. Gayner McDaniel, Poultry Science Department, Auburn University, Auburn, Alabama. These images appear on a poster sponsored Hy-Line. The poster is provided to each classroom in Lancaster County, Nebraska participating in the 4-H School Enrichment Embryology project. Credits

Fertilized Unincubated Egg

Infertile Egg

Embryo Photos

Day 1	Day 2	Day 3	Day 4	Day 5
Day 6	Day 7	Day 8	Day 9	Day 10
Day 11	Day 12	Day 13	Day 14	Day 15
Day 16	Day 17	Day 18	Day 19	Day 20
Day 21