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.
Leptin mRNA expression in the gastrointestinal tract of calves (white bar) and cows (black bar). Leptin mRNA expression relative to that of glyceraldehyde-3-phosphate dehydrogenase mRNA is represented as mean ± SEM for each region of the gastrointestinal tract. * indicates P<0.05 (t-test).
