Heat stress could threaten health of one billion cows

By the end of century, more than one billion cows worldwide could suffer from heat stress if global warming continues unabated, threatening their fertility, milk production and lives, according to research published on Thursday.

Nearly eight out of 10 cows across the planet are already experiencing excessively high body temperatures, spiked respiration rates, bowed heads and open-mouthed panting — all symptoms associated with severe heat stress, the study said.

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