韓牛의 第一胃 內에 捿息하는 纖毛蟲類 出現率의 季節的 變化에 관한 硏究 = Studies on Ciliated Protozoa Inhabited in the Rumen of Korean Autochthonal Cattle with Special Reference to Seasonal Changes of appearance Rates

다국어 초록 (Multilingual Abstract)

Five hundred and eleven of Korean autochthonal cattle recognized as healthy ones have been selected and slaughtered as Jeonju Abattoir. And the following is the summarized results from the observation on the seasonal changes of the ciliated protozoa which inhabited in the rumen every other month for a year.
1. Having no connection with a seasonal environment, the pH of the content juice in the rumen showed above or below 6.5 on the average.
2. The presumed number of ciliates on the average per mℓ showed 1201000~2001000', displaying somewhat increased curving line changes in summer and fall.
3, Nine genera or sub-genera and twenty-eight species of ciliates were detected from the content juice in the lumen, those were, however, contained Epidinium sp., which impossible to identify.
4. Generally at the appearance rates of ciliates among genera or sub-genera, Dasytricha, Isotricha, Eudiplodimium and Epidinium rose their rates in summer-time, on the contrary,Entodinium slowed down and showed the curving line changes in winter as a conversal phenomenon.
5. E. simplex keeps the highest appearance rate of all species of ciliates, ranging from 30 to 70 percent of them all. The numeral changes from each season inclined to show the curving line tendency nearly in accordance with Entodinium