학술논문

A model on biological flow of phosphorus in growing pigs
Document Type
article
Source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. June 2009 61(3)
Subject
pig
metabolism
balance
true absorption
radio-phosphorus
kinetic
Language
English
ISSN
0102-0935
Abstract
Ten crossbred barrows weighting 20kg were allocated in five groups fed and on diets consisted of different total phosphorus (P) levels: 0.30%, 0.40%, 0.51%, 0.65%, and 0.73%. The animals were intravenously injected 7.4MBq of radioactive P (32P) and after seven days they were slaughtered for further analysis. The evaluated parameters were intake, excretion, specific activities, and flow of P in compartments (1-gut, 2-blood, 3-bone, and 4-soft tissue). Besides fecal losses, the kidneys played an import role in P regulation. The flows of P from tissue and gut to the blood were affected by P intake.