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.
All data were analyzed by Duncan’s multiple range tests using SAS software package. Different letters represented significantly differences at the level of 0.05 (p ≤ 0.05).
