Sheep Quickstep while the Floor Rock and Rolls: Visuomotor Lateralization during Simulated Sea Travel

Area of Science:

• Animal behavior
• Neuroscience
• Biomechanics

Background:

• Unpredictable floor motions during transport disrupt animal balance.
• This may induce stress and involve specific brain hemisphere activation.

Purpose of the Study:

• Investigate behavioral laterality in sheep under prolonged, unpredictable floor motion.
• Determine if stepping and lying behaviors show lateralization.

Main Methods:

• Six sheep were exposed to regular and irregular roll and pitch rocking motions on a platform.
• Stepping patterns and lying side preferences were recorded.
• 412 web images of sheep lying positions were analyzed.

Main Results:

• Irregular roll and pitch motions increased right forelimb and left hindlimb stepping.
• Sheep used the right hindlimb as a stabilizer.
• Sheep on the left side of the platform stepped more frequently.
• Sheep showed a left-sided lateral preference when lying down.

Conclusions:

• Stepping activity in sheep responding to motion stress is lateralized.
• Observed laterality supports the hypothesis of visuomotor lateralization and stress responses during transport.