2. What are the benefits of adding antibiotics to feed?
(1) can prevent and treat some diseases, and treatment is the normal pharmacological action of antibiotics, especially for some infectious diseases and common diseases;
⑵ Promote growth, accelerate the growth of livestock and poultry, increase daily weight gain and shorten the feeding cycle;
⑶ Improve the feed conversion rate. Under the same feed conditions, better feeding effect can be obtained, and the quantity of animal products can be increased, thus saving feed and improving benefits;
(4) improve animal resistance.
3. Antibiotic feed additives can be divided into two categories: human and livestock antibiotics (such as oxytetracycline, chlortetracycline and tetracycline). ) and veterinary antibiotics (such as flavomycin, zinc bacitracin, polymyxin, monensin, salinomycin, Vietnam A, tylosin, virginiamycin, hygromycin B, enramycin, quibemycin, thiopeptide, etc. In addition, there are synthetic antibacterial drugs and feed additives such as olaquindox.
Western Europe has banned the use of antibiotics for human beings and livestock because of the fear that long-term use of antibiotics will have adverse consequences on the prevention and treatment of human and livestock diseases. The special antibiotic for livestock and poultry not only has the advantages of low dosage, little or no absorption, rapid excretion, no residue or little residue, almost no drug resistance, no harm to human and animal health and continuous growth promotion. It is the most ideal antibiotic feed additive at present. Most synthetic antibiotic feed additives have the characteristics of low toxicity, strong action and good effect, and are also feed additives with good effect at present.