An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Mashaly MM, Birrenkott GP, EL-Begearmi MM, Wentworth BC.Mashaly MM, et al. Among authors: wentworth bc.Poult Sci. 1976 Jul;55(4):1226-34. doi: 10.3382/ps.0551226.Poult Sci. 1976.PMID: 951358Free article.