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.
Comparison of the effects of increasing dietary (A) total amino acids (protein) and (B) energy levels. These are theoretical curves. The actual response lines will vary depending on genetic stock, and environmental conditions including temperature, humidity, litter conditions and atmospheric gasses such as carbon dioxide and ammonia levels.
