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Fungal toxins known as mycotoxins, including some thought lost to history, are claiming new territory as the Earth warms.<\/p>\n<\/div>\n<\/div>\n
Karen Jordan, a North<\/strong> Carolina<\/strong> dairy farmer and practicing veterinarian, knew she had trouble the minute her cows\u2019 hair began to stand up on end.<\/p>\n When a cow is healthy, she explains, their hair lays tight and sleek against their skin. But one by one, her cows began to poof up like agitated cats. A few days later, she found out why\u2014the corn she had fed her cattle contained an invisible, harmful compound called T2.<\/p>\n Then she \u201cgot unlucky\u201d a second season when she picked up another bad batch of feed, this time a load of cotton seed. That year, she figures, the rash of hurricanes had dumped so much water on southeastern farms that mold, and associated toxic compounds called mycotoxins, had spoiled whole swaths of cropland.<\/p>\n<\/div>\n<\/div>\n \u201cThis year we were wet early, and then it kind of straightened out. But in the Midwest, it was wet late. That was the perfect stew for a mycotoxin year.\u201d<\/p>\n<\/blockquote>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n People involved in food production have been aware, on some level, of the presence and harms of mycotoxins for at least 2,000 years<\/a>. These toxins, we now know, are harmful chemicals produced predominantly by the fungi that grow in grains. Historically, mycotoxins have triggered outbreaks of gangrene, convulsions, heart failure, paralysis, mental illness, and may have even played a role in the Salem witch trials<\/a>. Today, they are largely considered a problem for animal producers, whose animals can fall ill and even die if fed contaminated grain or silage.<\/p>\n But the toxins are rapidly spreading, hastened by climate change and reduced global crop diversity.<\/p>\n This January, John Winchell loaded up his truck to pay a visit to farms throughout the northeastern U.S., where he consults with farmers about the detection and prevention of mycotoxins on behalf of Alltech, a global animal and food production supplier. The last three years, he says, mycotoxins have been particularly prevalent in the U.S. But he takes comfort in the fact that the uptick is not exactly mysterious\u2014it\u2019s all due to the weather.<\/p>\n \u201cWe\u2019ve had two years of consistently wet weather,\u201d he says. \u201cThis year we were wet early, and then it kind of straightened out. But in the Midwest, it was wet late. That was the perfect stew for a mycotoxin year.\u201d<\/p>\n<\/div>\n<\/div>\n<\/div>\n Once a farmer realizes they have a problem, they must identify the source. For larger dairies, this process can take so long that by the time you get your tests back, the guilty load of feed is probably already consumed.<\/p>\n\n
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