Panting scores as a measure of heat stress evaluation in sheep with access and with no access to shade (original) (raw)

Applied Animal Behaviour Science, 2021

Abstract

Abstract The threat to sheep welfare of heat stress when pastured outdoors in the summer, particularly without access to shade, has been underinvestigated. This may be of importance not only in hot climates, but also during the summer months in cooler climates. This study considered whether, in the moderately warm conditions of a northern European summer, sheep will access shade of they have access to it, and if sheep with no access to shade in a northern European summer show behaviours indicative of poor welfare, including measures of panting scores and other indicators of heat stress. There were twelve sheep in each of the groups, the control group (NS) or the treatment group with the possibility to access shade (SH). Respiration rates and panting scores were recorded for each sheep in each group twice each day. Other behaviours were also recorded at the individual animal level. In the SH group, the numbers of sheep in the shaded areas were also noted. Climatic data on observation days was collected. Respiration rates were significantly higher at higher panting scores (p

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