Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia

This study, carried out in 2022-2023, quantified the financial burden of disease in cattle, sheep and goats in Ethiopia for the year 2021 using the animal health loss envelope (AHLE) metric. The AHLE measures all cause disease burden, avoidable and non-avoidable, as the difference in the financial p...

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Main Authors: Jemberu, Wudu T., Chaters, G., Knight-Jones, Theodore J.D., Gilbert, W., Kwok, S., Bruce, M., Huntington, B., Rushton, J.
Format: Journal Article
Language:Inglés
Published: Elsevier 2026
Subjects:
Online Access:https://hdl.handle.net/10568/178732
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author Jemberu, Wudu T.
Chaters, G.
Knight-Jones, Theodore J.D.
Gilbert, W.
Kwok, S.
Bruce, M.
Huntington, B.
Rushton, J.
author_browse Bruce, M.
Chaters, G.
Gilbert, W.
Huntington, B.
Jemberu, Wudu T.
Knight-Jones, Theodore J.D.
Kwok, S.
Rushton, J.
author_facet Jemberu, Wudu T.
Chaters, G.
Knight-Jones, Theodore J.D.
Gilbert, W.
Kwok, S.
Bruce, M.
Huntington, B.
Rushton, J.
author_sort Jemberu, Wudu T.
collection Repository of Agricultural Research Outputs (CGSpace)
description This study, carried out in 2022-2023, quantified the financial burden of disease in cattle, sheep and goats in Ethiopia for the year 2021 using the animal health loss envelope (AHLE) metric. The AHLE measures all cause disease burden, avoidable and non-avoidable, as the difference in the financial performance of a livestock production system (e.g., gross margin) comparing a scenario where animals are in an ideal state of health to the current situation. A stochastic dynamic population model (DPM) was employed to calculate the gross margin for an average farm and for the national herd under these current and ideal health scenarios. Data for parametrizing the DPM were derived from secondary sources and expert elicitation. The stochastic DPM was simulated for10,000 iterations and results are reported as means with 95% percentile intervals (PI). The annual AHLE per average farm was estimated at USD 1,209 (95%PI:392-2,470) in cattle, USD 158 (95%PI:66-292) in sheep and USD 416 (95%PI:136-847) in goats. At national level, the annual AHLE in ruminants was USD 18.39 billion with USD 15.42 billion (95% PI:12.70-18.57) in cattle, USD 1.04 billion (95% PI:0.84-1.30) in sheep, and USD 1.93 billion (95% PI:1.64 - 2.25) in goats. Morbidity losses constituted the largest component of the AHLE, exceeding 50% across all species, while animal health expenditure represented the smallest component, accounting for less than 2% of AHLE in all species. This high disease burden, with minimal contribution from animal health expenditure, indicates significant opportunity for improvement through investment in animal health.
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spelling CGSpace1787322025-12-15T07:24:16Z Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia Jemberu, Wudu T. Chaters, G. Knight-Jones, Theodore J.D. Gilbert, W. Kwok, S. Bruce, M. Huntington, B. Rushton, J. animal diseases cattle goats livestock sheep small ruminants This study, carried out in 2022-2023, quantified the financial burden of disease in cattle, sheep and goats in Ethiopia for the year 2021 using the animal health loss envelope (AHLE) metric. The AHLE measures all cause disease burden, avoidable and non-avoidable, as the difference in the financial performance of a livestock production system (e.g., gross margin) comparing a scenario where animals are in an ideal state of health to the current situation. A stochastic dynamic population model (DPM) was employed to calculate the gross margin for an average farm and for the national herd under these current and ideal health scenarios. Data for parametrizing the DPM were derived from secondary sources and expert elicitation. The stochastic DPM was simulated for10,000 iterations and results are reported as means with 95% percentile intervals (PI). The annual AHLE per average farm was estimated at USD 1,209 (95%PI:392-2,470) in cattle, USD 158 (95%PI:66-292) in sheep and USD 416 (95%PI:136-847) in goats. At national level, the annual AHLE in ruminants was USD 18.39 billion with USD 15.42 billion (95% PI:12.70-18.57) in cattle, USD 1.04 billion (95% PI:0.84-1.30) in sheep, and USD 1.93 billion (95% PI:1.64 - 2.25) in goats. Morbidity losses constituted the largest component of the AHLE, exceeding 50% across all species, while animal health expenditure represented the smallest component, accounting for less than 2% of AHLE in all species. This high disease burden, with minimal contribution from animal health expenditure, indicates significant opportunity for improvement through investment in animal health. 2026-02 2025-12-11T08:37:08Z 2025-12-11T08:37:08Z Journal Article https://hdl.handle.net/10568/178732 en Open Access Elsevier Jemberu, W.T., Chaters, G., Knight-Jones, T.J.D., Gilbert, W., Kwok, S., Bruce, M., Huntington, B. and Rushton, J. 2026. Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia. Preventive Veterinary Medicine 247:106761.
spellingShingle animal diseases
cattle
goats
livestock
sheep
small ruminants
Jemberu, Wudu T.
Chaters, G.
Knight-Jones, Theodore J.D.
Gilbert, W.
Kwok, S.
Bruce, M.
Huntington, B.
Rushton, J.
Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia
title Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia
title_full Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia
title_fullStr Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia
title_full_unstemmed Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia
title_short Stochastic modelling of burden of livestock diseases on domestic ruminants in Ethiopia
title_sort stochastic modelling of burden of livestock diseases on domestic ruminants in ethiopia
topic animal diseases
cattle
goats
livestock
sheep
small ruminants
url https://hdl.handle.net/10568/178732
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