The eyes have it: lateralized coping strategies in cattle herds responding to human approach

Animal Cognition
Andrew RobinsClive Phillips

Abstract

We report a range of lateralized coping strategies adopted by large social groups of cattle in response to mild challenges posed by humans of varying degrees of familiarity. At either 14 or 18 pens at a commercial feedlot, with 90 to 200 cattle in each, we conducted a series of video recorded 'pressure tests'. 'Frontal' pressure tests involved walking from a position perpendicular to the concrete feed bunk of a given pen, towards the geometric centre of the line of feeding cattle. 'Bunk-side' pressure tests involved experimenters walking closely past a pen of feeding cattle in one direction, before returning in the opposite direction shortly afterwards. Experimenters wore white dust masks to alter their facial features in the bunk-side pressure tests. In both frontal and bunk-side pressure tests, distance from the experimenter influenced cattle's choice of binocular viewing, cessation of feeding, standing or stepping backwards to monitor the approach and leaving the feed bunk. The frequency of these coping strategies differed in a lateralized manner. The cattle were more likely to accept the close positioning of a generally familiar, unmasked human on their left, which is traditionally referred to as the "near" side. By contras...Continue Reading

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Citations

Sep 5, 2019·Animals : an Open Access Journal From MDPI·Andrew Robins
Sep 22, 2019·Animals : an Open Access Journal From MDPI·Andrew RobinsClive J C Phillips

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Software Mentioned

Minitab
Binoc
SAS Analysis
Monoc

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