アルビノ及び野性型ウズラにおける ERG 特にc波の特性に関する研究

概要

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Electroretinograms (ERGs) of normally pigmented and albino quail wererecorded under white flash light stimulation. In ERGs taken during first 3 days afterhatching at a flash intensity of 10 joule (J), the c-wave was found only in the albino, whilein the older birds it was found in ERGs of both phenotypes. The c-wave of the chick wasmuch faster in the time course than that of the adult. In the albino chick (day-5), whenthe flash intensities were increased from 1 to 10 J, there was a mark.ed decrease in theb-wave which was always associated with an increase in the c-wave. In some albino adultquail, low intensity of flash light (0.5 -1.0J) could bring about distinctive slow positivepotential (c-wave) and oscillatory potential (wavelets), while in the pigmented adult quail,higher intensity of flash light (10-40 J) was required to elicit comparable responses. Thea- and b-waves of albino were larger in amplitude than those of pigmented quail at anygiven flash intensity. These results indicate that the sensitivity of the mixed retina of thequail to a light stimulus is enhanced by the albinism.
社団法人日本獣医学会の論文
1979-12-25