- Mar 20, 2013
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Is melanin ( or is it melatonin?) that the human skin produces when uv light is allowed on skin over periods of time,resulting in suntanning? If you feed a dog that has red hair on its body higher doses of keratin,the red will deepen significantly. That substance is found in carrots.We feed a product called Olewo,which is made in Germany,composed of dehydrated carrots and beets. We feed it about 2 months before show season to deepen the already red hair in our German Shepherds. Point being,these diffrent compounds will change the color we see.I've never seen this done to peafowl,but if these substances are introduced in peas diets,it too should change the way we visually see the bird color wise,yes? Instead of hoping that one in a million chance occurs to get new color genes to match up,,can dietary supplements actually change the pigment of melanin before cell division at fertilization?
Melanin is the pigment, which does increase in the skin with exposure to UV light. Melatonin is secreted in the brain in response to light, and affects circadian rhythm, but is also found plants and probably has other functions. The substance in carrots which can affect coloring is carotene, probably specifically beta carotene. Keratin is the protein which makes up fingernails and hair and skin (and feathers and scales). Color-feeding birds works some species which have yellow to red pigments in their feathers, which can be enhanced by increased amounts of carotenoids (natural, or artificial derivatives like canthaxanthin which is fed to red-factor canaries and flamingos, for example). But I don't think it would work in species which don't display yellow to red pigmentation. I think, at best, it might enhance the yellow skin coloration in the various Greens and Spaldings.
