Economic assessment of burden of animal diseases in donkeys in Ethiopia.

Overview

• This study quantifies the economic burden of diseases affecting working donkeys in Ethiopia, using a metric that compares current productivity to an ideal disease-free scenario.
• It calculates the overall financial losses to donkey-owning households and the national economy, highlighting the significant impact of health problems on donkey productivity.

Background and Importance of Donkeys in Ethiopia

• Working donkeys are vital for Ethiopia’s agricultural households and broader economy, providing crucial labor and transport services.
• Despite their importance, donkeys suffer from a heavy and often neglected burden of disease, which adversely affects their productivity and welfare.
• There has been limited quantitative analysis of the scale and economic impact of these diseases until now.

Research Objective

• The objective was to assess and quantify the disease burden in Ethiopian working donkeys using the Animal Health Loss Envelope (AHLE) metric.
• AHLE measures the loss by comparing actual donkey production with a hypothetical ideal scenario where donkeys are free of all diseases.

Methodology

• Modeling Approach:
  • Applied a stochastic dynamic population model to estimate income, expenditures, and losses from donkey-related enterprises.
  • Two health scenarios were considered: current health conditions versus an ideal disease-free state.
  • The difference between the enterprise budgets under these two scenarios represents the AHLE, or the economic loss due to disease.
• Data Sources:
  • Household surveys, focus group discussions, and interviews with key informants provided primary data.
  • Expert elicitation helped parameterize disease and productivity impacts.
  • Secondary data from existing literature was also incorporated to strengthen model assumptions.

Key Findings

• Economic Losses at Household Level:
  • The average economic loss due to donkey diseases per donkey-owning household was estimated at USD 116 annually (95% Prediction Interval: 96-142 USD).
  • This loss represents approximately 28% of the potential income that households could earn if their donkeys were disease-free.
• National Level Impact:
  • When extrapolated to the national population of 10.2 million donkeys, the total economic loss is estimated at approximately USD 646 million annually (95% PI: 566-739 million USD).
• Components of the Disease Burden:
  • Morbidity, or the loss due to illness reducing productivity, accounts for more than 70% of total AHLE across all production types: commercial, domestic agricultural, and pastoral systems.
  • Expenditure on animal health (treatments, preventive measures) represents a very small proportion of total losses—only 0.8 to 2.1% depending on the system.
  • External factors and non-infectious causes (such as injuries or environmental factors) cause the largest share of health-related losses, emphasizing the importance of these less-studied problems.
• Focus Example – Lameness:
  • Lameness was modeled separately to illustrate disease-specific impact.
  • In the commercial donkey production system, lameness accounted for 12.8% of the total AHLE, equating to about USD 8 million in losses.

Implications and Recommendations

• The study highlights a substantial economic burden from diseases in donkeys, underscoring the critical need for better animal health interventions.
• Policy makers and stakeholders can use these estimates to prioritize investments in donkey health and welfare programs.
• Targeted strategies to reduce morbidity—especially from non-infectious causes like injuries—could significantly boost donkey productivity and household incomes.
• Improved veterinary services, education, and preventive care are likely necessary to mitigate these losses effectively.
• Addressing donkey health also directly benefits communities reliant on these animals for their livelihoods, improving socioeconomic outcomes.