Dose imprecision and resistance: free-choice medicated feeds in industrial food animal production in the United States.

Dose imprecision and resistance: free-choice medicated feeds in industrial food animal production in the United States.
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DOI:
10.1289/ehp.1002625
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发表时间:
2011-03
影响因子:
10.4
通讯作者:
Nachman KE
Nachman KE
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Love DC;Davis MF;Bassett A;Gunther A;Nachman KE

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工业化食用动物生产使用许多与人类医学中使用的相同的抗生素或抗生素类别。这些药物可以以自由选择药物饲料(FCMF)的形式给予食用动物,动物可以选择消耗多少饲料。对牲畜常规施用这些药物选择对治疗人类临床感染的关键药物具有耐药性的微生物。在这篇评论中,我们讨论了加药饲料的历史,FCMF在剂量输送方面的使用性质,以及美国解决食用动物抗菌药物使用的政策。FCMF使得难以提供可预测的、准确的和预期的剂量。过量可导致动物毒性;剂量不足或剂量不一致可导致无法解决动物疾病和产生耐抗生素微生物。应重新考虑为治疗临床诊断疾病以外的原因向食用动物提供抗生素,特别是通过自由选择的喂养方法。
Industrial food animal production employs many of the same antibiotics or classes of antibiotics that are used in human medicine. These drugs can be administered to food animals in the form of free-choice medicated feeds (FCMF), where animals choose how much feed to consume. Routine administration of these drugs to livestock selects for microorganisms that are resistant to medications critical to the treatment of clinical infections in humans. In this commentary, we discuss the history of medicated feeds, the nature of FCMF use with regard to dose delivery, and U.S. policies that address antimicrobial drug use in food animals. FCMF makes delivering a predictable, accurate, and intended dose difficult. Overdosing can lead to animal toxicity; underdosing or inconsistent dosing can result in a failure to resolve animal diseases and in the development of antimicrobial-resistant microorganisms. The delivery of antibiotics to food animals for reasons other than the treatment of clinically diagnosed disease, especially via free-choice feeding methods, should be reconsidered.
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