As a result, ecological interactions between individual organisms and entire species are often difficult to define and measure and are frequently dependent on the scale and context of the interactions (Harrison & Cornell 2008; Ricklefs 2008; Brooker et al. 2009).s a result, ecological interactions between individual organisms and entire species are often difficult to define and measure and are frequently dependent on the scale and context of the interactions (Harrison & Cornell 2008; Ricklefs 2008; Brooker et al. 2009).
Bacteria from a dirty egg grows inside, turning the contents into a foul liquid, killing any embryo present. Gasses build up and generate pressure that may cause the egg to ooze or explode. I rescued this egg from one of my fairweather broody hens, who had abandoned her nest after two weeks of sitting. The egg was no longer warm when I found it, which didnât give me much hope for the embryoâs viability, but I placed it in my incubator hoping for the best a few days ago.
A fertilized egg does not mean that it has a chick inside it. It has an embryo (blastoderm-fertilized blastodisc) and this embryo is capable of producing a chick (within 21 days), if incubated in proper conditions. The embryo in a fertilized egg looks like a small flat disc with a ring around it. If refrigerated, fertilized eggs are like the unfertilized ones and do not develop further. Most of the poultry farms have specialized candling equipment for identifying fertile chicken eggs.