Abstract: Withdrawal of Antibiotic Growth Promoters in China and its Impact on the Foodborne Pathogen Campylobacter Coli of Swine Origin

Nov 21, 2022

Abstract: Withdrawal of antibiotic growth promoters in China and its impact on the foodborne pathogen Campylobacter coli of swine origin

Antibiotic growth promoters (AGPs) have been used as feed additives to improve feed efficiency in food animals for more than six decades. However, the wide use of AGPs has led to the emergence of antibiotic-resistant pathogens of animal origin, posing a significant threat to food safety and public health. China prohibited the addition of AGPs to animal feed from July 2020. The impacts caused by the withdrawal of AGPs on the prevalence and antibiotic resistance of foodborne pathogens have not been illustrated. Here, a total of 471 strains of Campylobacter were isolated from pigs from three pig farms and two slaughterhouses in Sichuan Province for 4 consecutive years (2018-2021), including 2 years before and 2 years after the ban on AGPs in China. The isolation rate of Campylobacter had a slight increase after prohibiting the addition of AGPs to the feed. Contrary to what we expected, the antibiotic susceptibility test and WGS data showed that the antibiotic resistance to gentamicin and florfenicol and the abundance of virulence genes increased significantly after the ban of AGPs.

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Video: ASF Spread and Control Insights - Dr. Carles Vilalta

In this episode of The Swine it Podcast Show Canada, Dr. Carles Vilalta, epidemiologist at IRTA CReSA in Spain, explains the current African swine fever situation, including origin, transmission, and control strategies. He highlights the role of human activity, wild boar dynamics, and biosecurity measures to protect commercial farms. Learn how surveillance and field actions shape disease containment. Listen now on all major platforms!

"ASF demonstrates slow animal to animal transmission despite high infectivity, making it a clumsy disease that depends heavily on human mediated spread."

Meet the guest: Dr. Carles Vilalta / carlesvilalta is an epidemiologist, swine veterinarian, and researcher at IRTA-CReSA in Spain. His work focuses on epidemiology, swine health, disease surveillance, and research support for government and industry programs. Learn more from Dr. Carles Vilalta on The Swine it Podcast Show Canada, available on all major platforms.