Dr. Frank Greshake reports positive trends in cattle prices in Germany, with high demand for minced meat leading to increased prices for young bulls, heifers, and cows. The high prices are attributed to the popularity of beef and a self-sufficiency rate of around 90% for beef in Germany. The meat from young bulls is typically sold as self-service goods, heifers are sold in the catering trade, and heavy old cows are exported.