Perhaps I'm late to the party and this has made its rounds- but I just found the following video put out through Auburn University's Poultry Science dept.
For those of us that aren't great at learning from still diagrams and descriptions, this is a great step by step visual learning tool specifically on how the egg gets from the ovary to the nest box in animation with lots of detail.
For those of us that aren't great at learning from still diagrams and descriptions, this is a great step by step visual learning tool specifically on how the egg gets from the ovary to the nest box in animation with lots of detail.