You can learn more about some breeds of livestock from Oklahoma State University . The map below highlights seven groups of agricultural animal products, depicting the ten states that are the biggest producers of each. As you might guess, Texas had the most valuable livestock industry in 1998, followed by California. Iowa and neighboring states produce enormous amounts of corn and other grains which can be fed to cattle and pigs. Though these crops are also grown on the more arid Great Plains, western cattle often feed in grassy pastures on ranches that may be enormous.
Sheep can thrive on even more arid grasslands.
Notice also that the dairy industry is well represented in more northern, cooler states. I simply removed all the crops, leaving only animal products. The chart lists the top ten states that produce each product. The units are millions of dollars. For example, the first figure given 196,761 represents 196,761,000,000.