(1) To ensure its safety. Long-term use should not cause acute and chronic toxicity and adverse effects on livestock and poultry.
(2) It has stability. Whether it is in the feed or in the animal body should have better stability.
(3) The residual amount in animal products should not exceed the prescribed standards, so as not to affect the quality of human products and human health.
(4) It is not allowed to cause changes in reproductive physiology or affect embryos.
(5) Does not affect the palatability of the feed.
(6) The content of toxic metals in the chemical raw materials used shall not exceed the allowable limit (referred to as highly toxic metals).
(7) Vitamins and hormonal drugs may not expire or exceed the expiration date.
(8) There must be a definite and obvious economic and production effect.
In short, the feed additives should follow the principles of safety, economy and ease of use. Before use, the potency and expiration date of the additives should be considered. The restrictions, prohibitions, usage, incompatibility and other provisions should also be noted.
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