| 摘要 |
1,255,433. Fodder. RUHR-STICKSTOFF A.G. 18 March, 1970 [20 March, 1969], No. 12941/70. Heading A2B. A urea-contaniing fodder for ruminants comprises grains of urea having a semipermeable plastics membrane coating which releases the urea over a protracted period after the grains have arrived in the rumen. The urea is released over a period of four hours. |
