Citation

Toyokawa, K. Tsubomatsu, K., and T. Nomura, Studies on the utilization of rice straw. IV. The influence of cellulose, lignin and silica on the dry matter disappearance in the rumen of fistulated cow. Journal of Japanese Grassland Science 21: 42-46, 1975.

Abstract

The process of disappearance of cellulose, lignin and silica in the rice straw packed in a silk bag and placed in the rumen was investigated quantitatively. The correlation coefficient between the disappearance rate of these components and that of dry matter was estimated.

Quantitative analysis of cellulose, lignin and silica in the rumen of fistulated cow was carried out by five days period experiment. The disappearance rates of these components and of dry matter were compared.

1. The lowest disappearance rate was obtained in the rice straw of the highest cellulose and lignin-content. The rice straw containing silica at average level gave the highest disappearance rate of silica in the rumen. Both higher and lower level of silica than the average gave lower value of the disappearance rate.

2. Correlations between the disappearance rate of dry matter and that of cellulose, lignin and silica were estimated. Cellulose followed by lignin, influenced most effectively on the disappearance rate of dry matter. Correlation coefficients at the first day after placing the rice straw in the rumen were 0.842 (P<0.05) and 0.794 for cellulose and lignin, respectively.

3. negative correlation was observed between the contents of cellulose, lignin and silica in the rice straw, and the disappearance rate of dry matter. after third day of the experiment period, the correlation was statistically significant. higher contents of cellulose and lignin gave low value of the disappearance rate.

4. the same experimental results as described above were obtained in the cases of wheat straw, orchardgrass and ladino clover.

country, state, district, etc.

Japan

Language

Japanese (English title and summary)

Material

rice straw

Use category

animal feed