Antimicrobial resistance profiles of common mastitis pathogens on large Chinese dairy farms

被引：1

作者：

Song, Xiangbin ^{[1
,2
]}

Wang, Yaxin ^{[1
]}

Bai, Rina ^{[1
]}

Pei, Xiaoyan ^{[3
]}

Xu, Hongyan ^{[3
]}

Zhu, Kui ^{[1
]}

Wu, Congming ^{[1
]}

机构：

[1] China Agr Univ, Coll Vet Med, Natl Key Lab Vet Publ Hlth & Safety, Beijing 100193, Peoples R China

[2] Shandong Ctr Qual Control Feed & Vet Drug, Shandong Prov Key Lab Qual Safety Monitoring & Ris, Jinan 250100, Peoples R China

[3] Inner Mongolia Yili Ind Grp Co Ltd, Yili Innovat Ctr, Hohhot 010110, Peoples R China

来源：

JDS COMMUNICATIONS | 2024年 / 5卷 / 03期

关键词：

(CNS; 352); Streptococcus agalactiae (38); non-agalactiae streptococci (50); Acinetobacter spp. (52); Escherichia; CLINICAL MASTITIS; BOVINE MASTITIS; UDDER PATHOGENS; SUSCEPTIBILITY; EUROPE; MILK;

D O I：

10.3168/jdsc.2023-0413

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The primary objective of this study was to determine the antimicrobial resistance (AMR) profile of common mastitis pathogens on large Chinese dairy farms. A total of 673 isolates, including Staphylococcus aureus (14.41%, 97/673), coagulase-negative staphylococci (CNS, 52.30%, 352/673), Streptococcus agalactiae (5.64%, 38/673), non- agalactiae streptococci (7.42%, 50/673), Acinetobacter spp. (7.72%, 52/673), Escherichia spp. (6.39%, 43/673), and Klebsiella spp. (6.09%, 41/673), were collected from 15 large Chinese dairy farms in 12 provinces. The AMR profiles were measured using a microdilution method. Our results showed that more than 75% of Staph. aureus (87/97) and CNS (291/352) were resistant to penicillin (PEN). More than 30% of Escherichia spp. (15/43) showed resistance to ampicillin (AMP). However, less than 10% CNS and non- agalactiae streptococci showed resistance to amoxicillin/clavulanate (AMC; 1/352; 0/50), cephalexin (LEX; 1/352; 0/50), ceftiofur (EFT; 10/352; 0/50), and rifaximin (RIX; 21/352; 2/50); less than 10% Staph. aureus showed resistance to AMC (1/97), oxacillin (OX; 3/97), LEX (1/97), EFT (2/97), and RIX (2/97); less than 10% Strep. agalactiae showed resistance to PEN (3/38), AMC (0/38), LEX (0/38), EFT (0/38), and RIX (0/38); and less than 10% Escherichia spp. showed resistance to AMC (1/43) and EFT (4/43). These results suggested that most mastitis pathogens were susceptible to most antimicrobials with exceptions of Staph. aureus tested against penicillin or ampicillin and CNS against penicillin or oxacillin. To control the AMR threat in Chinese dairy farms, a nationwide surveillance program for AMR of bovine mastitis pathogens is needed.

引用

页码：185 / 189

页数：6