Portal de Periódicos da CAPES

Pigment Types in Selected Color Genotypes of Asiatic Sheep

1990; Wiley; Volume: 3; Issue: 4 Linguagem: Inglês

10.1111/j.1600-0749.1990.tb00286.x

1600-0749

G.A. Aliev, Michael Rachkovsky, Shosuke Ito, Kazumasa Wakamatsu, ALEXANDR IVANOV,

Identification and Quantification in Food

The types and amounts of pigments in fibers from variously colored Tajik, Hissar, and Caracul sheep were determined by three methods: high‐performance liquid chromatography, electron spin resonance spectroscopy, and light microscopic evaluation of mel‐anosomes. In both dominant and recessive black lambs the color is due to eumelanin pigment. Brown and red phenotypes are the result of interaction of A wt and E BI , E Br , or E Y alleles, and these colors are caused by mixtures of eumelanin and pheomelanin in varying ratios. The HPLC and ESR measurements detected these differences in melanin type, while direct characterization of melanosomes generally failed to distinguish between melanin type or relative ratio of melanin type.