Anatomical structure of Rottweiler
A dog as any mammalian has 5 main sense organs: sight, hearing, smell, sense of touch, sense of taste. Visual organs, curiously enough, are not of paramount importance in canine life. Puppies are born blind and open their eyes approximately two weeks after drawing the first breath (usually after 12-15 days).
As far as Rottweilers are concerned, so they have well-developed instincts since ancient times (that seem to have survived genetically since these dogs were used for wild animal hunting). These natural instincts witness that Rottweilers have very good vision. The Rottweiler must have dark color of the eyes (more on this later). Presence of light iris is the sign of degraded pigmentation that is an abnormality and may result in degeneration of succeeding generations.
The question at issue is that if having similar deformity, newborn puppies will suffer with different defects during further breeding and these defects are caused not only by a color of iris, but also by disorders of some important body functions.
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