Health Problems and Risk Factors Associated with Long Haul Transport of Horses in Australia.
Authors: Padalino Barbara, Hall Evelyn, Raidal Sharanne, Celi Pietro, Knight Peter, Jeffcott Leo, Muscatello Gary
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary Long-distance horse transport poses significant welfare and health challenges, yet empirical epidemiological data beyond abattoir consignments remain scarce in the equine literature. Researchers analysed 1,650 horses transported approximately 4,000 km between Perth and Sydney over two years, documenting health problems reported by drivers and owners across 180 individual journeys and subsequently verified through veterinary assessment. Whilst 97.2% of horses arrived clinically sound, the remaining 2.8% presented with notable morbidity: respiratory and gastrointestinal problems each accounted for 27% of cases, pyrexia for 19%, traumatic injuries for 15%, and mortality for 12%. Journey duration emerged as a critical risk factor, with significantly increased incidence of severe conditions—particularly gastrointestinal and respiratory disease alongside mortality—occurring after 20 hours in transit, whilst seasonal variation was also significant, with spring transport associated with higher problem rates. Secondary risk indicators (though not reaching statistical significance) included stallions and colts, horses over 10 years of age, and Thoroughbreds, suggesting that transport management protocols should account for individual animal risk profiles and journey parameters to mitigate physiological and physical stress during extended hauls.
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Practical Takeaways
- •Long-haul transport (4000 km) carries documented health risks; journeys exceeding 20 hours warrant additional management protocols and monitoring for respiratory and gastrointestinal complications
- •Spring transport presents increased risk for severe health problems; schedule transports outside this season where possible, or implement enhanced welfare measures during spring movements
- •High-risk groups (older horses, stallions, Thoroughbreds) require individualized assessment before long-haul transport and closer monitoring during and after transit
Key Findings
- •97.2% of horses (1604/1650) arrived at destination with no clinical signs of disease or injury over 180 journeys
- •Most common health issues in affected horses were respiratory (27%) and gastrointestinal problems (27%), pyrexia (19%), traumatic injuries (15%), and death (12%)
- •Severity of transport-related health problems significantly increased in spring and after 20 hours in transit (p < 0.05)
- •Elevated disease risk observed in stallions/colts, horses over 10 years old, and Thoroughbreds, though not statistically significant