Sydney Acres
Songster
Candling update Day 14:
Backyard eggs: 10 set, 9 good. One was clear & probably not fertile
Shipped Eggs: 12 set, 8 embryos good size (2 clear eggs & 2 with blood rings + dead 3-5 day old embryos)
The air cells are about the worst I've ever seen. They all started out detached & some floated 3/4 way around the shell, Now many are fused in place but severely saddle shaped.
My daughter's 4-H experiment is to compare the hatch rate of shipped eggs vs. backyard eggs. Her hypothesis is that the shipped eggs will not hatch as well due to all the bumps during transit. My part of the project was building an incubator & paying for the eggs.
With the first batch of shipped eggs, 60% hatched. It was pretty good, but the backyard eggs were at almost 90%.
With the second batch of shipped eggs, we had 10 make it to day 18, but only 3 hatched. (about 25% hatched) Backyard eggs were 83%.
This time, they’re off to a rougher start. We may end up with our 1st ever 0%.
In each trial, my daughter gathered the eggs around the same time, so they would be the same age. I suppose we could have shipped them back to ourselves, but then we wouldn’t hatch the fun variety. It’s good enough for a 9 yr old’s project.
What a great teaching project!
Once it's done you can ask her if there were any possible faults in the experimental design that might lead to misleading outcomes, and ask her to make a written list. If she doesn't come up with the fact that the shipped eggs came from a different flock, different breed, etc, then you can help her with that one. When 9 year old girls start thinking like a scientist, their potential is limitless!!