An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Meat from cattle having one copy of the inactive myostatin gene. This meat has a medium lean-to-fat ratio and medium degree of marbling compared to meat from cattle having no or two copies of the gene.