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/sup 15/N study on dietary urea utility in young pigs fed with a low protein diet

Journal Article:

Abstract

To investigate effect of a low protein diet on urea utilization, a tracer study was conducted with /sup 15/N-urea on pigs fed a low protein diet (DCP 5.7%) with 2% urea (group B), and on pigs fed and optimal protein diet (DCP 13.3%) with 2% urea (group A). /sup 15/N was incorporated into protein of liver, serum and muscle, which were obtained 8 days after the last administration of /sup 15/N-urea. The /sup 15/N incorporation rate into the tissue protein tended to be higher in group B than in group A. Approximately 70% of /sup 15/N, however, was excreted into urine within 48 hours in group B. A comparison was made on growth and urea level in blood and urine to evaluate efficacy of the administered urea on growth between group B pigs and pigs fed the same low protein diet without urea supplementation (group C). Since group B pigs always maintained a higher level of blood urea, they were considered to have had more ammonia nitrogen which was available for protein synthesis than group C animals. A similar amount of urea to ingested dose, however, was excessively eliminated in urine. The increased ammonia nitrogen by urea ingestion may be  More>>
Authors:
Niiyama, M; Kagota, K; Iwase, T; Namioka, S [1] 
  1. Hokkaido Univ., Sapporo (Japan)
Publication Date:
Oct 01, 1978
Product Type:
Journal Article
Reference Number:
AIX-10-469861; EDB-80-006552
Resource Relation:
Journal Name: Nippon Juigaku Zasshi; (Japan); Journal Volume: 40:5
Subject:
59 BASIC BIOLOGICAL SCIENCES; ANIMAL GROWTH; DIET; UREA; METABOLISM; ANIMAL FEEDS; INGESTION; LABELLED COMPOUNDS; NITROGEN; NITROGEN 15; NUTRITIONAL DEFICIENCY; PROTEINS; SWINE; TRACER TECHNIQUES; UPTAKE; AMIDES; ANIMALS; CARBONIC ACID DERIVATIVES; CRYOGENIC FLUIDS; DOMESTIC ANIMALS; ELEMENTS; FLUIDS; FOOD; GROWTH; INTAKE; ISOTOPE APPLICATIONS; ISOTOPES; LIGHT NUCLEI; MAMMALS; NITROGEN ISOTOPES; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; STABLE ISOTOPES; VERTEBRATES; 550201* - Biochemistry- Tracer Techniques
OSTI ID:
5704685
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NJUZA
Submitting Site:
INIS
Size:
Pages: 575-583
Announcement Date:

Journal Article:

Citation Formats

Niiyama, M, Kagota, K, Iwase, T, and Namioka, S. /sup 15/N study on dietary urea utility in young pigs fed with a low protein diet. Japan: N. p., 1978. Web.
Niiyama, M, Kagota, K, Iwase, T, & Namioka, S. /sup 15/N study on dietary urea utility in young pigs fed with a low protein diet. Japan.
Niiyama, M, Kagota, K, Iwase, T, and Namioka, S. 1978. "/sup 15/N study on dietary urea utility in young pigs fed with a low protein diet." Japan.
@misc{etde_5704685,
title = {/sup 15/N study on dietary urea utility in young pigs fed with a low protein diet}
author = {Niiyama, M, Kagota, K, Iwase, T, and Namioka, S}
abstractNote = {To investigate effect of a low protein diet on urea utilization, a tracer study was conducted with /sup 15/N-urea on pigs fed a low protein diet (DCP 5.7%) with 2% urea (group B), and on pigs fed and optimal protein diet (DCP 13.3%) with 2% urea (group A). /sup 15/N was incorporated into protein of liver, serum and muscle, which were obtained 8 days after the last administration of /sup 15/N-urea. The /sup 15/N incorporation rate into the tissue protein tended to be higher in group B than in group A. Approximately 70% of /sup 15/N, however, was excreted into urine within 48 hours in group B. A comparison was made on growth and urea level in blood and urine to evaluate efficacy of the administered urea on growth between group B pigs and pigs fed the same low protein diet without urea supplementation (group C). Since group B pigs always maintained a higher level of blood urea, they were considered to have had more ammonia nitrogen which was available for protein synthesis than group C animals. A similar amount of urea to ingested dose, however, was excessively eliminated in urine. The increased ammonia nitrogen by urea ingestion may be excreted in form of urinary urea in group B pigs. There was no difference in growth between group B and group C animals; therefore, poor efficacy of administered urea on growth may have resulted not only from its loss into urine in early stage after ingestion, but also to poor utility of ammonia for protein synthesis.}
journal = {Nippon Juigaku Zasshi; (Japan)}
volume = {40:5}
journal type = {AC}
place = {Japan}
year = {1978}
month = {Oct}
}