Poultry
Bobwhite Quail Embryo Development
1 min read
This publication shows the development of a bobwhite quail embryo from Day 1 through Day 23.
Click on each image to see it full scale.
- Hatching eggs.
- Infertile, unincubated egg. Blastodisc located on top of yolk appears irregular in shape.
- Fertile, unincubated egg. Blastoderm larger, more regular in shape and has a “donut-appearance.”
- Day 1 Blastoderm enlarges in size.
- Day 2 “Donut-shape” greatly enlarged and embryo lies within the donut ring.
- Day 3 Beginnings of a circulatory system.
- Day 4 Circulatory system developing, embryo visible.
- Day 5 Circulatory system well developed. Formation of appendages.
- Day 6 Embryo in shell.
- Day 6 Notice brain to body size relationship.
- Day 7 Embryo in shell.
- Day 7 Brain continues to develop at rapid rate.
- Day 8 Embryo in shell.
- Day 8 Limb development evident.
- Day 9 Embryo in shell.
- Day 9 Wing development rapid. Development of egg tooth begins.
- Day 10 Embryo in shell.
- Day 10 Egg tooth seen on tip of beak. Eyes very conspicuous.
- Day 11 Embryo in shell.
- Day 11 Continued limb development.
- Day 12 Embryo in shell.
- Day 12 Beginnings of feather development.
- Day 13 Rapid wing development.
- Day 14 Feather tracts seen on the back. Wings, feet, toes well developed.
- Day 15 Increased formation of feathers.
- Day 16 Hardening of beak and egg tooth continues.
- Day 17 Eyelids have overgrown eyes.
- Day 18-21 Calcification of bone started. Toenails and down feathers on neck, thighs and wings present. Embryo enlarges. Remaining yolk sac enters the body cavity.
- Day 22 – Pipping. Chick pips into the air cell and begins pulmonary breathing. Chick begins pipping through the shell.
- Day 23 Hatching. Chick hatches and dries
- Twelve hours after hatching
Download a PDF of Bobwhite Quail Embryo Development, ANR-1410.