National butterfat levels make record jump

For back-to-back years, butterfat levels in the collective U.S. bulk tank posted 0.05 percentage growth. Those year-over-year gains were the largest since USDA began tracking the statistic in 1924. Given this new information, U.S. butterfat levels now nearly match those from 1952 when the national bulk tank averaged 3.90 percent butterfat.