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.
Inverse relationship between duodenal calbindin d28k (CALB) and sodium-phosphate cotransporter type IIb (NPTIIb) in broiler chickens relative to calcium availability. As duodenal calcium concentration increases, then CALB expression decreases and NPTIIb expression increases to potentially maximize phosphate absorption because of the potential excessive calcium binding to phosphorus to form tricalcium phosphate and making phosphorus unavailable.
