Feed efficiency and methane emissions with Ermias Kebreab, UC Davis

The poultry and swine industries have transformed feed efficiency over the past two decades. Through systematic improvement in nutrition, enzyme utilization, and animal genetics, they now produce vastly more protein from fewer resources. The challenge is not simply reducing methane emissions from cows, but reducing methane per unit of milk produced while maintaining farmer profitability and food security. But here's the complexity: feed intake in dairy cattle is difficult to measu...