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Cooling Jackets

The use of cooling jackets on greyhounds at racetracks has been fairly limited. During the current study, there appeared to be reluctance by some trainers to use them, either because of a belief that they were uncomfortable for the dogs or because of a perception the time taken to don the jackets was wasted. Results of this study revealed the unexpected finding that the mean rectal temperature of dogs wearing jackets postrace was slightly higher than those dogs which did not. Cooling jackets of a different type have been demonstrated to be effective in reducing the duration of postexercise hyperthermia in military dogs (70). Pre-competition use of ice jackets has been effective in reducing the degree of body heating in human athletes (71), but postexercise use of ice jackets is not advantageous in hyperthermic athletes (72). Further research into their use in greyhounds during hot conditions is warranted.

Источник: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4927620/
*Исследование военных собак из отсылки (70) http://www.vetmed.ufl.edu/2012/04/26/uf-study-looks-at-role-of-vests-in-heat-related-illness-of-working-dogs/ (да, оно выглядит забавно)