title: Effects of graded levels of dietary phosphorus on bone mineralization in the very young poult.
abstract: An experiment was conducted to determine the effects of graded levels of dicalcium phosphate on bone mineralization in 1 and 3-week-old poults. Corn-soybean meal diets calculated to contain 1.5% calcium and either .35, .55, .75, .95, or 1.15% available phosphorus were fed to battery brooder reared poults for 3 weeks. Body weights and percent tibia ash were determined at 1 and 3 weeks. Body weight was not significantly affected by dietary phosphorus at either 1 or 3 weeks of age. Percent tibia ash was significantly greater in 1-week-old poults receiving a minimum of .75% available phosphorus. In 3-week-old poults, maximum tibia ash was obtained with with a minimum of .55 available phosphorus. This study suggests the level of dietary phosphorus necessary to achieve maximum tibia ash in 3-week-old poults is not sufficient for maximum tibia ash in 1-week-old poults.
mesh_terms: D000375:Aging; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D001846:Bone Development / Q000187:drug effects*; D004032:Diet; D008297:Male; D010758:Phosphorus / Q000494:pharmacology*; D014422:Turkeys / Q000254:growth & development*
chemical_list: D010758:Phosphorus