Vitamin D magic?

摘要

With the exception of the slander leveled at us by the news media (see "Poultry Litter," page 56), the hottest topic in the beef cattle industry right now is vitamin D. Specifically, two universities - Oklahoma State University (OSU) and Texas Tech -have independently discovered that massive levels of vitamin D fed for the last 10 days can greatly improve meat tenderness. What makes this research especially remarkable is that the levels used would have until now been considered toxic.