Occurrence and assessment of veterinary antibiotics in swine manures: A case study in East China
Occurrence and assessment of veterinary antibiotics in swine manures: A case study in East China
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DOI：
10.1007/s11434-011-4830-3
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发表时间：
2012-02-01
影响因子：
--
通讯作者：
Song Jing
中科院分区：
文献类型：
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作者：
Chen YongShan;Zhang HaiBo;Song Jing
调查了中国东部地区4个不同规模养猪场粪便中四环素类、磺胺类、大环内酯类、氟喹诺酮类和氯霉素类共14种抗生素的存在情况。四环素(四环素、土霉素、金环素和强力霉素)和磺胺嘧啶是粪便样品中最主要的污染物，最高浓度分别为98.2×10(3)、354.0×10(3)、139.4×10(3)、37.2×10(3)和7.1×10(3)µg/kg。这些化合物的出现取决于养殖规模、动物类型和繁殖季节。粪便储存和蚯蚓养殖不能有效地消耗较重的污染物(四环素和磺胺嘧啶)，导致粪便中残留大量这些化学物质。因此，在研究农场附近的4种农用地(梨园、茶园、竹林和水田)采集的农田土壤中，这些抗生素的存在(0.1-205.1 Mu g/kg)反映了有机肥的使用。然而，粪便中极高浓度的抗生素不太可能来自饲料消费，而是来自其他直接的药物应用形式。
We investigated the occurrence of 14 selected antibiotics including five therapeutic classes of tetracyclines, sulfonamides, macrolides, fluoroquinolones and chloramphenicols in manures collected from four swine farms of different sizes in eastern China. Tetracyclines (tetracycline, oxytetracycline, chlortetracycline, and doxycycline) and sulfadiazine were the most prominent contaminants in the manure samples, with maximum concentrations reaching 98.2 x 10(3), 354.0 x 10(3), 139.4 x 10(3), 37.2x 10(3), and 7.1x 10(3) mu g/kg, respectively. The occurrence of these compounds was dependent on breeding scale, animal type, and breeding season. Manure storage and vermiculture were not able to effectively deplete the heavier contaminants (tetracyclines and sulfadiazine), resulting in high levels of these chemicals remaining in manures. Therefore, the occurrence of these antibiotics in agricultural soils (0.1-205.1 mu g/kg) collected from four types of agricultural land (pear orchard, tea plantation, bamboo forest, and paddy field) near the studied farms, was a reflection of manure application. However, the extremely high concentrations of antibiotics in manures were unlikely from feed consumption, but from other direct forms of medicine application.