Approximately 900 million sheep are transported annually worldwide — many for live export over thousands of kilometers by sea and land. Transport is among the most welfare-compromising events in a sheep's life, combining social disruption, physical stress, feed/water deprivation, and novel environments.
Scale: 900M+ sheep transported annually | Live export: Australia exports 2-3M sheep/year | EU moves 3M+ sheep across borders annually | Road journeys of 24-48+ hours common | Sea journeys: 2-6 weeks
Physiological Stress During Transport
Transport imposes multiple simultaneous stressors on sheep:
Novelty and fear: Loading into vehicles, vehicle motion, and unfamiliar conspecifics all trigger HPA axis activation. Plasma cortisol rises 2-5x above baseline within 30 minutes of loading.
Feed and water deprivation: Pre-transport fasting (mandatory for gut health during transport) causes hunger stress. Deprivation exceeding 24 hours causes significant metabolic and welfare impacts.
Motion sickness: Vestibular disruption from road movement causes nausea responses — sheep show reduced feed intake and abnormal behavior during road transport consistent with motion sickness.
Temperature extremes: Overcrowded vehicles generate excessive heat; cold in winter can cause hypothermia in shorn animals. Heat stress is a significant mortality cause in long-haul transport.
Mixing: Social disruption from mixing unfamiliar sheep causes fighting, establishing dominance hierarchy under already-stressful conditions.
Loading and Unloading Welfare
Loading and unloading are the highest-risk welfare moments during transport. Electric prod use, steep ramp angles, slippery surfaces, and handler rough treatment combine to produce falls, injuries, and extreme fear responses. Research shows that 60-80% of transport injuries occur during loading/unloading.
Evidence-based improvements: maximum ramp angle 20° (EU standard); non-slip surfacing; adequate lighting (sheep move from dark to light); calm, trained handlers; no electric goad use on heads/faces; flight-zone based low-stress techniques.
Journey Duration and Welfare
Scientific evidence on journey duration effects:
First 6 hours: Acute stress response, gradual adaptation
6-12 hours: Stress hormones begin to reduce; dehydration starts
EU regulation requires rest stops every 14 hours (28 hours for "long journey approved" vehicles), with 1-hour water/feed access. Animal welfare organizations advocate for 8-hour maximum journey times without rest.
Long-Distance Live Export Welfare
Major Welfare Concern: Australia's live sheep export to the Middle East involves up to 25-day sea voyages in hot, humid conditions. Heat stress deaths — "heat event mortalities" — have killed thousands of sheep on individual voyages. The 2017 MV Awassi Express footage showing thousands of dead and dying sheep in 35°C+ heat led to suspension and ultimately a phase-out of summer exports. Australia's parliamentary inquiry recommended ending live sheep export entirely by 2028.
Regulatory Framework 2025
EU: Council Regulation (EC) 1/2005 — journey time limits, space allowances, temperature bands, water/feed requirements
UK: Post-Brexit ban on live export for slaughter (from 2023) — a significant welfare advance
Australia: Phase-out of live sheep export legislated; cattle export reforms ongoing