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Poultry farmer response to disease outbreaks in smallholder farming systems in southern Vietnam

Delabouglise Alexis, Thanh Nguyen Thi Le, Xuyen Huynh Thi Ai, Nguyen-Van-Yen Benjamin, Tuyet Phung Ngoc, Lam Ha Minh, Boni Maciej F.. 2020. Poultry farmer response to disease outbreaks in smallholder farming systems in southern Vietnam. eLife, 9:e59212, 19 p.

Article de revue ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : BIOLOGY

Résumé : Avian influenza outbreaks have been occurring on smallholder poultry farms in Asia for two decades. Farmer responses to these outbreaks can slow down or accelerate virus transmission. We used a longitudinal survey of 53 small-scale chicken farms in southern Vietnam to investigate the impact of outbreaks with disease-induced mortality on harvest rate, vaccination, and disinfection behaviors. We found that in small broiler flocks (≤16 birds/flock) the estimated probability of harvest was 56% higher when an outbreak occurred, and 214% higher if an outbreak with sudden deaths occurred in the same month. Vaccination and disinfection were strongly and positively correlated with the number of birds. Small-scale farmers – the overwhelming majority of poultry producers in low-income countries – tend to rely on rapid sale of birds to mitigate losses from diseases. As depopulated birds are sent to markets or trading networks, this reactive behavior has the potential to enhance onward transmission.

Mots-clés Agrovoc : élevage de volailles, aviculture, Influenzavirus aviaire, petit agriculteur, petite exploitation agricole, exploitation agricole familiale, transmission des maladies, grippe aviaire

Mots-clés géographiques Agrovoc : Viet Nam

Mots-clés libres : Economie de la santé, Élevage familial, Filière élevage, Influenza aviaire, Aviculture

Classification Agris : L73 - Maladies des animaux
E80 - Économie familiale et artisanale

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Auteurs et affiliations

  • Delabouglise Alexis, CIRAD-BIOS-UMR ASTRE (FRA) ORCID: 0000-0001-5837-7052 - auteur correspondant
  • Thanh Nguyen Thi Le, Oxford University (VNM)
  • Xuyen Huynh Thi Ai, Livestock Production and Animal Health (VNM)
  • Nguyen-Van-Yen Benjamin, CNRS (FRA)
  • Tuyet Phung Ngoc, Livestock Production and Animal Health (VNM)
  • Lam Ha Minh, Oxford University (VNM)
  • Boni Maciej F., Pennsylvania State University (USA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/596425/)

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