Grace, Delia

Hu Suk Lee

Hung Nguyen-Viet

Huyen Nguyen-Van

Khong Nguyen-Viet

Poole, Elizabeth J.

Thang Tran-Quang

Trang Le Thi-Huyen

Unger, Fred

Yen Luu Thi-Hai

English

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Hung Nguyen-Viet1, Huyen Nguyen-Van 2, Trang Le-Thi-Huyen 1, Fred Unger1, Thang Tran-Quang 3, Yen Luu-Thi-Hai 2, Khong Nguyen-Viet 2, Hu Suk Lee1, Jane Pool1, Delia Grace11 International Livestock Research Institute,  2National Institute of Veterinary Research, 3Vinh Phuc animal health and livestock sub-department• In Vietnam, around 80% of pork is produced by smallholder farmers who often use antibiotics fordisease prevention and growth promotion due to their low cost and lack of farmer knowledge orconcern over AMU.• To reduce AMU in livestock, there is need to identify how farmers could benefit from reduction tomotivate behaviour change.Objective: to test an intervention at farm level to reduce the AMU and AMR by replacingantimicrobials in feed with nanosilver, an anti-microbial agent most commonly used in surfacetreatments and packagingThis study is funded by the CGIAR Research Program onAgriculture for Nutrition and Health (A4NH). The assistance of thestaffs of Vinh Phuc animal health and livestock sub-department isdeeply appreciated.INTRODUCTIONMETHODS• The use of nanosilver as replacement of antibiotic added to thefeed showed no difference in ADG, nor in AMR profile of E. coliin a small-scale pig production.• These trial results suggest a possible alternative to antibioticuse in pig production to reduce AMU and AMR.• Evidence of efficacy, cost-benefit, acceptability to farmers,development of resistance, risk assessment for transfer to porkand an environmental impact assessment of nanosilver areneeded before scaling up its use.ACKNOWLEDGEMENTHung Nguyen-Viet● Email: h.nguyen@cgiar.org● International Livestock Research Institute   ● Website: http://www.ilri.orgRESULTSProportion of AB resistance detected between 2 groupsCONCLUSION Alternative to antibiotic in pig production: A Nano silver use trial • Prevalence of E. coli in both fecal and floor samples was 100%• High resistance rates to most commonly used antibiotics• No significant difference in AMR profile of E. coli between thecontrol and intervention group• No antibiotic residue was found in pork from the interventiongroup. One (out of six) pork sample of the control group wasdetected to have amoxicillin at 26.3 µg/kg (vs. 50 µg/kg as MRLfor Amoxicillin in pork) for a withholding period of seven days.AMR and antibiotic residuesRESULTS• No significant difference observed between the control andintervention group at all times of measurement (p>0.05).Average Daily GainADG after different times of measurement (by gram/day)

Alternative to antibiotic in pig production: A nanosilver use trial

https://cgspace.cgiar.org/bitstream/10568/107203/1/Poster.pdf

Alternative to antibiotic in pig production: A nanosilver use trial

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