使用含硒饲料养鸡能有效提高鸡体对细菌、病毒的自身杀灭能力，减少兽药用量，降低鸡蛋药物与病害残留。
Breeding chicken with selenium feedstuff can effectively improve the ability to resist bacteria and virus while reduce veterinary drug dosage and pesticide residues in eggs.
细菌素在生物饲料添加剂、生物兽药及人类医药保健和食品生物防腐剂的研发中有着广泛的应用价值和广阔的应用前景。
These natural substances have raised considerable interest for their advantages moreover they have potential value and broad prospect in feed additives and bio-pharmaceutical R D.
活性研究也局限于抑菌、兽药（饲料添加剂）、医药领域。
Study on organic activity is only in the fields of inhibiting bacteria feed addictive and medicine.
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