Global warming and the growing consumer demand for
animal-derived food and meat, particularly in newlyindustrialising
countries with hot climates, raise public
concerns on animal welfare, long-term sustainable
livestock production and food and consumer safety. In
these areas, heat stress is one major reason for economic
losses in livestock production. Tobias Aumiller, Xiaodan
Zhou, Ester Vinyeta, Jan Dirk van der Klis, and Andreas S.
Müller, of Delacon Biotechnik GmbH, explain that besides
lowering the quality of forage and feedstuffs, a hot and
humid climate reduces reproduction performance and
productivity of livestock animals. Moreover, heat stress
affects general health and the susceptibility of farm
animals to infectious diseases.

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