An avian egg is a biological system and characteristics of many interrelated biological system. And a such slight
aberrations in any of the egg physical traits results in collapse of the interacting parameters and consequently its major
physiological functions to provide enabling environment for fertility, hatchability and developing embryo. Regardless of
huge efforts of researchers and breeding companies it has proved impossibly difficult to produce eggs with uniform
physical traits.
Consequently, 20 -40% of chicken eggs still fail to hatch