면양에서 소립자의 제1위 통과속도에 관한 연구 = Studies on the Rumen Outflow Rates of Small Particles in Sheep .

다국어 초록 (Multilingual Abstract)

This experiment was carried out to study on the rumen outflow rate of chromium mordant barley straw and fish meal in sheep. All the animals were fed on ammonia treated barley straw diet libitum. Chromium mordant straw or fish meal was poured into the rumen. The feces were sampled for 5 days. The results obtained are as follows; 1. Chromium treatment rendered the fish meal or straw both undigestible and undegradable in the rumen. 2. The rate of outflow of fish meal from the reticulo-rumen was found to be faster than that of barley straw by 2.3 times. The rumen retention time of fish meal was varied from 23.8 to 33.3 hours with a mean of 27.0 hours while the rumen retention time of barley straw was varied from 47.6 to 100 hours with a mean of 62.5 hours.