Journal article
Drivers of vaccination preferences to protect a low-value livestock resource: Willingness to pay for Newcastle disease vaccines by smallholder households
Vaccine, Vol.37(1), pp.11-18
01/03/2019
Handle:
https://hdl.handle.net/2376/117036
PMCID: PMC6290109
PMID: 30478006
Abstract
•
Willingness to pay signals low income households value Newcastle disease vaccines.
•
Vaccination is valued despite poultry being a relatively low value asset.
•
On-farm income is sufficient to drive willingness to pay (WTP).
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Prior vaccination increases WTP, implying vaccines are valued as being efficacious.
Vaccination can be an effective risk management approach to minimize the burden of disease and increase livestock productivity for smallholder households in low income countries. In contrast to vaccination of cattle, a high-value smallholder asset, there is a significant knowledge gap for the drivers of vaccine adoption of smallholder poultry. Newcastle disease virus (NDV) causes high mortality in chickens and is one of the greatest constraints to East African poultry production. To determine preferences and willingness to pay for NDV vaccines by chicken-owning households in Tanzania, we administered a survey with a contingent valuation activity to 535 households across six villages in Arusha, Singida, and Mbeya regions. Given the low current vaccination rate, we tested the null hypothesis that smallholder households do not value NDV vaccines and found overwhelming evidence that smallholders
do
value NDV vaccines. The willingness to pay (WTP) estimate was 5853 Tanzanian shillings ($2.64) to vaccinate ten chickens given the vaccine was protective for a period of three months. This estimate is about twice the market price reported by households in the study areas suggesting chicken-owning households value and benefit from NDV vaccines, but face other barriers to vaccination. Previous vaccination had the largest positive effect size on WTP suggesting smallholders observe benefits from vaccinating. In contrast to studies of vaccination of higher-cost cattle where off-farm income sources often drive willingness to pay, on-farm income was a driver of WTP for NDV vaccines suggesting different drivers affect protection of low-value livestock assets as compared to high-value assets.
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Details
- Title
- Drivers of vaccination preferences to protect a low-value livestock resource: Willingness to pay for Newcastle disease vaccines by smallholder households
- Creators
- Zoë A Campbell - Paul G. Allen School for Global Animal Health, Washington State University, PO Box 647090, Pullman, WA 99164, USALinus Otieno - Kenya Medical Research Institute, Kisumu, KenyaGabriel M Shirima - Paul G. Allen School for Global Animal Health, Washington State University, PO Box 647090, Pullman, WA 99164, USAThomas L Marsh - Paul G. Allen School for Global Animal Health, Washington State University, PO Box 647090, Pullman, WA 99164, USAGuy H Palmer - Paul G. Allen School for Global Animal Health, Washington State University, PO Box 647090, Pullman, WA 99164, USA
- Publication Details
- Vaccine, Vol.37(1), pp.11-18
- Academic Unit
- Paul G. Allen School for Global Animal Health; Economic Sciences, School of
- Publisher
- Elsevier Science
- Identifiers
- 99900547722201842
- Language
- English
- Resource Type
- Journal article