| 摘要 |
1494774 Ruminant feeds FAHLBERG - LIST MAGDEBURG CHEMISCHE UND PHARMAZEUTISCHE FABRIKEN VEB 12 Feb 1975 [12 Feb 1974] 5871/75 Heading A2B Ruminant feeds include a compound of formula where R, and R 2 are the same or different and are hydrogen or substituted or unsubstituted alkyl, aralkyl or aryl; R 3 is R 1 R 2 N or R 5 O; R, and R 5 are the same or different and are substituted or unsubstituted alkyl, aralkyl or aryl; and X is oxygen or sulphur. The compound may be administered mixed or prilled with urea, in quantities of 0.01- 10% by weight of urea nitrogen, and improves the utilisation of the urea by inhibiting ureolysis in the first stomach. |
