| abstract |
The invention provides a composite microecological preparation and a preparation method thereof. The composite microecological preparation is obtained by the combined fermentation and cultivation of yeast and L-valine-producing bacteria in a medium containing betaine. It is prepared from valine and the contents of compound bacteria, and contains betaine. As a new type of non-toxic and non-polluting microbial product feed additive, the composite micro-ecological preparation of the present invention can adjust the micro-ecological balance of animal organisms, prevent diseases, improve feed conversion rate, improve animal production performance, protect ecological environment, etc. play an important role. |