I put in 20 gold sex-link eggs in the bator (4th stinking batch of eggs) and I just candled all 20. ALL WERE fertile. All had started to develop. I can see for sure 13 moving embryos. Some off the eggs had darker shells so I wasn't 100% sure if they were developing still or not. YES, I am so happy. My last 3 loads were very VERY Disappointing. They are developing, they were all fertile-I know this doesn't garuntee me chicks, but its a better chance now!