Level 2 1: 1. The R&D background and characteristics of Shengyuan Youbo premature infant milk powder. Shengyuan Youbo premature infant milk powder is a nutritional product specially developed for premature infants. Its research and development background stems from the fact that premature infants are malnourished and prone to malnutrition after birth. Infection and other issues. This milk powder uses high-quality whey protein and lactoferrin as the main protein sources, while adding multiple