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turacin
Turacin is a naturally occurring red pigment that is 6% copper complexed to uroporphyrin III. Arthur Herbert Church discovered turacin in 1869.
It is found only in the bird family Musophagidae, the turacos.〔(Online Medical Dictionary )〕 Other birds derive their red coloration from carotenoids (bright and orange-reds) or phaeomelanins (rusty and brownish-reds).
It is often assumed that this coloration will wash out when the birds are bathing or after heavy rains, but this is true only if the water used for bathing happens to be very alkaline.
== See also ==
* Psittacofulvin, a brightly colored red and yellow pigment unique to parrots
* Turacoverdin, green pigment unique to turacos
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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