| 摘要 |
A method for raising cows’ productivity includes feeding a feed additive, comprising mangan and cobalt, thereto in the lactation period. Zinc, magnesium and copper are additionally fed to the cows in the composition of the additive, a daily rate is determined depending on the content of mangan, cobalt, zinc, magnesium and copper in a concrete ration of feeding cows, and mangan, cobalt, zinc, magnesium and copper are used as aqueous solutions of nanoaquachelates. |
