Influence of dietary calcium (Ca) and phosphorus (P) on phosphorus retention in chickens

Conference · Fri Feb 28 23:00:00 EST 1986 · Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States)

OSTI ID:5435596

Scheideler, S E; Sell, J L

Experiment 1 was a 3 x 3 factorial arrangement with 3 levels of dietary Ca (3.0, 3.5, and 4.0%) and 3 P feeding programs fed to laying hens for 336 days. The P programs tested were: .64% P fed continuously for 48 weeks; .64, .54, and .44% P; and .56, .49, and .39% P fed when hens were 24 to 36, 36 to 52, and 52 to 72 weeks of age, respectively. In addition to production traits, measurements of P retention were made at 34, 42, 50, 62, and 72 weeks of age. None of the production traits measured showed any dietary effects. Dietary Ca affected P retention at 50, 62, and 72 weeks of age. None of the production traits measured showed any dietary effects. Dietary Ca affected P retention at 50, 62, and 72 weeks of age. Average P retention for the experiment was 104, 148, and 178 mg/day in hens fed 3.0, 3.5, and 4.0% Ca. Dietary P affected P retention at 42 and 72 weeks, with P retention being greater in hens fed .64% P. Ca x P interactions were measured at 42, 62, and 72 weeks of age. Experiment 2 involved 2 levels of dietary Ca (.8 and 1.2%) fed to one-week-old broiler chicks for 8 days during which time 50 uCi /sup 33/P/chick were administered. Serum, femurs, and excreta were collected 48 hours following /sup 33/P dosing. Serum inorganic P and excreted /sup 33/P activity were greater in chicks fed .8% Ca; whereas femur /sup 33/P activity was greater when chicks received the 1.2% Ca diet. These data indicate increased P retention and greater bone deposition of P in chicks fed 1.2% dietary Ca. These results support those of Experiment 1 in which P retention of hens increased as dietary Ca increased.

• Research Organization: Iowa State Univ., Ames
• OSTI ID: 5435596
• Report Number(s): CONF-8604222-
• Journal Information: Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States), Journal Name: Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States) Vol. 45:3; ISSN FEPRA
• Country of Publication: United States
• Language: English

Related Subjects

550501* -- Metabolism-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ALKALINE EARTH METALS
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
BIRDS
BODY
CALCIUM
CHICKENS
DAYS LIVING RADIOISOTOPES
DIET
ELEMENTS
FOWL
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
METALS
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PHOSPHORUS
PHOSPHORUS 33
PHOSPHORUS ISOTOPES
RADIOISOTOPES
RETENTION
SKELETON
TRACER TECHNIQUES
VERTEBRATES