Science: Air-Cooled Cows

After a pampered passage from India, four "Red Sindhi" cattle—two bulls, two cows—chewed their cuds last week in a New Jersey cow barn. They were the first Indian cattle to enter the U.S. since 1924. When sufficiently rested from a plane-ship-plane journey, they would start a major breeding project: begetting cows to bulge with milk on the humid, hot Gulf Coast.

U.S. dairy cattle neither thrive nor give much milk in damp, semitropical climates. In Florida and Louisiana, the milk flow of Jerseys, Guernseys and other familiar breeds falls off as much as 40%....

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