Phytobiotics in world practice: plant species and active substances, efficiency and limitations, perspectives (review)

In the review historical preconditions for implementation and state of use (for 2021) phytogenic substances as growth productivity stimulators farm animals are considered. The main aspects phytobiotics have been analyzed in detail: 1) mechanisms action; 2) distinction between veterinary medicines; 3) species range plants used their active substances; 4) productive efficiency. following limitations disadvantages existing considered: they do not a direct anabolic effect useless under severe stress, by combination bad factors negative cannot be overcome. addition, there problems with safety. Other - composition varies widely, is no standardization substances, attempts to this reveal cytoxicity very small dosages these compounds (essential oils, saponins, isoquinoline alkaloids). prospect further studies, unique plant sources from Russia proposed, which absent abroad contain ecdysteroids biologically components, available widely now. Distinctive properties phytoecdysteroids ecdysterone representative follows: feed additives containing them relieve conventional such an effect; pleiotropic (multiple) effect. Their livestock breeding does cause fears, safe substances. It possible combine other antimicrobial agents order improve bioavailability prolong action ingredient