4-H Embryology Week 2
4-H Pledge I pledge my Head to clearer thinking my Heart to greater loyalty my Hands to larger service and my Health to better living for my club, my community my country and my world.
Shell Albumen Outer Shell Membrane Chalazae Inner Shell Membrane Yolk Air Cell Blastodisc = Food Source
Thick Albumen Thin Albumen Chalazae Shell Blastodisc Yolk Page 5 (Read Pg 3)
HOMEWORK Which egg is fertile?
Incubation Natural Incubation: the hen sits on the eggs until they hatch. Artificial Incubation: use an incubator and copy the hen’s actions until the eggs hatch. 4 Components of Incubation: Temperature Humidity Exercise Clean, fresh air Page 3
3/6/12 20 3/24/12 3/27/12 Page 11
The color of the shell is white. X Complete Sentences! Spelling Always Counts!
Complete Sentences! Spelling Always Counts! Page 12
Individual Egg Progress
8 Down feathers are starting to form, the embryo can open and close its mouth. Homework: Page 6 Pages 11 & 12 (skip questions 4,5,6) Page 15 Rooster Word Search (green paper) Shell Eye Spot Air Cell 8 Albumen Embryo Blood Vessels Yolk