Oct. 3 AM Live Ag Report

FRESNO, Calif.

The Labor Department wants to make it illegal for workers under 16 to handle pesticides and work in timber operations, manure pits and harvest tobacco.

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Researchers are trying to figure out why some cattle thrive at high altitudes while others get sick.

As many as two million cattle graze on public and private land at high altitudes every summer.

However, thousands develop bovine high altitude disease. In cattle, the problem can lead to hypertension, fluid buildup and even death.

It costs the beef industry about $60 million a year.

Researchers hope to identify DNA markers that show which cattle are prone to the disease and recommend ways ranchers can reduce the risk.

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