The researchers analyzed the nutritional composition of Silurus lanzhouensis fish muscles from the Yellow River in China. They found that the fish had high levels of protein, essential amino acids, and unsaturated fatty acids, making it a nutritious food source. The fish also contained important minerals like phosphorus, zinc, iron, and selenium. However, the ratio of some minerals was not ideal. Overall, Silurus lanzhouensis is a valuable freshwater fish with good nutritional value.