您好，欢迎访问广东省农业科学院 机构知识库！
广东省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Antibiotic resistance genes in layer farms and their correlation with environmental samples

文献类型： 外文期刊

作者： Zhu, Ting 1 ; Chen, Tao 1 ; Cao, Zhen 3 ; Zhong, Shan 1 ; Wen, Xin 1 ; Mi, Jiandui 1 ; Ma, Baohua 9 ; Zou, Yongde 9 ; Zhang, 1 ;

作者机构： 1.South China Agr Univ, Coll Anim Sci, Guangzhou 510642, Peoples R China

2.South China Agr Univ, Lingnan Guangdong Lab Modern Agr, Guangzhou 510642, Peoples R China

3.WENS Foodstuff Grp Co, Yunfu 527400, Xinxing, Peoples R China

4.Guangdong Lab Lingnan Modern Agr, Maoming Branch, Maoming 525000, Peoples R China

5.Minist Agr, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Guangzhou 510642, Peoples R China

6.Minist Agr, Key Lab Chicken Genet Breeding & Reprod, Guangzhou 510642, Peoples R China

7.South China Agr Univ, Minist Agr, Key Lab Trop Agr Environm, Guangzhou 510642, Peoples R China

8.Guangdong Engn Res Ctr Disposal & Resource Utiliz, Yunfu 527400, Xinxing, Peoples R China

9.Foshan Customs Comprehens Technol Ctr, Foshan 528200, Peoples R China

关键词： layer manure; soil; compost; antibiotic resistance gene

期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）

ISSN：

年卷期： 2021 年 100 卷 12 期

页码：

收录情况： SCI

摘要： Livestock farms are generally considered to be the important source of antibiotic resistance genes (ARGs). It is important to explore the spread of ARGs to reduce their harm. This study analyzed 13 resistance genes belonging to 7 types in 68 samples of layer manure including different stages of layer breeding, layer manure fertilizer, and soil from 9 laying hen farms in Guangdong Province. The detection rate of antibiotic resistance genes was extremely high at the layer farm in manure (100%), layer manure fertilizer (100%), and soil (> 95%). The log counts of antibiotic resistance genes in layer manure (3.34-11.83 log copies/g) were significantly higher than those in layer manure fertilizer (3.45 -9.80 log copies/g) and soil (0-7.69 log copies/g). In layer manure, ermB was the most abundant antibiotic resistance gene, with a concentration of 3.19 x 10(9)-6.82 x 10(11) copies/g. The average abundances of 5 antibiotic resistance genes were above 10(10) copies/g in the descending order ermB, sul2, tetA, sul1, and strB. The relative abundances of ARGs in layer manure samples from different breeding stages ranked as follows: brooding period (BP), late laying period (LL), growing period (GP), early laying period (EL), and peak laying period (PL). There was no significant correlation between the farm scale and the abundance of antibiotic resistance genes. Moreover, the farther away from the layer farm, the lower the abundance of antibiotic resistance genes in the soil. We also found that compost increases the correlation between antibiotic resistance genes, and the antibiotic resistance genes in soil may be directly derived from layer manure fertilizer instead of manure. Therefore, when applying layer manure fertilizer to cultivated land, the risk of antibiotic resistance genes pollution should be acknowledged, and in-depth research should be conducted on how to remove antibiotic resistance genes from layer manure fertilizer to control the spread of antibiotic resistance genes.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广东省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台