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Animal husbandry and human-animal relationships Health

Réduire le rayonnement du soleil en bâtiment pour maintenir le confort thermique des troupeaux laitiers en période chaude

ByMay 3rd 2023May 25th, 2023No Comments

Document type Cniel : news item on a technical file published by Cniel and IdeleIdele

Authors: Bertrand Fagoo , Dominique Lagel, Pierrick Eouzan, Tanguy Morel, Florence Fargier,
Jean Charef

Preview : Global temperature rises and more frequent periods of extreme heat are affecting the comfort of dairy herds. To adapt to weather conditions that will produce increasing stress in animals, we have to change our fields and buildings, as well as our practices.
Temperature is not the only climatic variable to affect the comfort of dairy cows. Other factors such as air-moisture content, wind speed and solar radiation strongly influence on thermal comfort. Solar radiation is beneficial in winter, contributing to the welfare of the animals (luminosity) and drying out buildings. But, in hot weather, it significantly increases the temperatures experienced by an animal out at pasture with  no access to shade, or shut in an overheated building. This document, whose production was funded by the CNIEL under the "Bâti'Lait Mieux" program, contains information that will help its readers understand the effects of solar radiation, and explore ways to reduce them.

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