Reducing Antimicrobial Usage in Small-Scale Chicken Farms in Vietnam: A 3-Year Intervention Study

Frontiers in Veterinary Science

Guy Thwaites¹  Juan Carrique-Mas¹  Ho Thi Viet Thu²  Lam Kim Yen³  Dinh Bao Truong⁴  Doan Hoang Phu⁴  Pawin Padungtod⁵  Nguyen Thi Tuyet Minh⁵  Erry Setyawan⁶  Jonathan Rushton⁷  Nguyen Van Cuong⁸  Vo Be Hien⁹  Bach Tuan Kiet⁹ 

[1] Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom;Department of Veterinary Medicine, Can Tho University, Can Tho, Vietnam;Faculty of Agriculture and Aquaculture, Dong Thap Community College, Cao Lãnh City, Vietnam;Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh City, Vietnam;Food and Agriculture Organization of the United Nations, Hanoi, Vietnam;Food and Agriculture Organization of the United Nations, Jakarta, Indonesia;Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom;Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam;Sub-Department of Animal Health and Production, Cao Lãnh City, Vietnam;

关键词: antimicrobial use;    disease;    smallholder farms;    poultry;    Vietnam;   

DOI  :  10.3389/fvets.2020.612993

来源: DOAJ

【 摘 要 】

Indiscriminate antimicrobial use (AMU) in animal production is a driver of antimicrobial resistance globally. There is a need to define sustainable interventions to reduce AMU in small-scale production systems, which currently represent the most widespread farming systems in South East Asia and many low- and middle-income countries. We conducted a before-and-after intervention study on a random sample of small-scale chicken farms in the Mekong Delta of Vietnam from 2016 to 2019. The study included a baseline followed by an intervention phase where farmers were provided with regular veterinary advice on flock health and husbandry, as well as antimicrobial replacement products. Of 102 recruited farms (raising >100 chickens per flock cycle), thirty-five (34.2%) entered the intervention phase, whilst the rest stopped raising chickens, mainly due to suboptimal flock performance. Through the implementation of our intervention, chicken flocks reduced levels of AMU by 66% [adjusted hazard ratio (HR) = 0.34; p = 0.002) from a baseline of 343.4 Animal Daily Doses per 1,000 chicken-days and decreased weekly mortality by 40% (adjusted HR = 0.60; p = 0.005) from a baseline mortality of 1.60 per 100 birds. Chicken bodyweight increased by 100 g (p = 0.002) in intervention flocks. Our findings demonstrate that the provision of veterinary advice can achieve substantial reductions in AMU in small-scale production systems without compromising flock health and productivity.

【 授权许可】

Unknown