摘要 |
Stable feedstuff additives with enriched concentration of active substances such as choline, prepared by addition of synthetically prepared, highly dispersed silicon dioxide with a particle size of less than 500 m mu. Enriched feedstuff additives are widely used in animal farming. The diffusion of water increases very slowly. The fall-velocity is great. Feedstuff additives enriched with easily decomposed active compounds may be stabilised using only small quantities of filler. The additives are dry powders which can be easily stored, packed and shipped. They are stable in tropical areas. |