0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
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SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Intestinal nitrogen flow, total nitrogen and 15N balance in pigs labelled intravenously with 15N-leucine and fed a meat meal diet

R. Schadereit 1,  
T. Żebrowska 3,  
J. Kowalczyk 3,  
 
1
Research Institute for the Biology of Farm Animals, Department of Nutritional Physiology "Oskar Kellner", 0-2500 Rostock, Germany
2
Institute of Animal Nutrition, University of Rostock, 0-2500 Rostock, Germany
3
Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
J. Anim. Feed Sci. 1995;4(3):207–215
Publish date: 1995-08-22
KEYWORDS
ABSTRACT
Three pigs of about 33 kg body weight, each fitted with re-entrant cannulas into the duodenum and ileum and with bladder catheters were used for the study. One of the pigs was infused intravenously with 15N-leucine for 8 days. Total N passage, 15N nitrogen passage through the duodenum and ileum, and N balance were determined. The mean amount of total N passing the duodenum exceeded the ingested N by 12%, and that passing the ileum accounted for 27% of N intake. Of the infused 15N, 67.4% was found in the urine, faeces, digesta and carcass after slaughter. Taking the recovered amount of 15N as 100%, 20.4% was found in urine, 0.6% in faeces, 8.2% in digesta and 70.8% in tissues. It was concluded that 15N retention from intravenously administrated leucine was much higher than from 15N in urea given with feed, as estimated previously.
 
CITATIONS (3):
1. Physiological approaches to determining gut endogenous amino acid flows in the mammal
P.J. Moughan, W.B. Souffrant, S.M. Hodgkinson
Archiv für Tierernaehrung
2. Absorption and secretion of exogenous and endogenous N along the digestive tract and kinetic parameters of protein metabolism in growing pigs
K. Krawielitzki, T. Zebrowska, F. Kreienbring, R. Schadereit, J. Kowalczyk
Journal of Animal Physiology and Animal Nutrition
3. Absorption and secretion of exogenous and endogenous N along the digestive tract and kinetic parameters of protein metabolism in growing pigs
K. Krawielitzki, F. Kreienbring, J. Kowalczyk, T. Zebrowska, R. Schadereit
Journal of Animal Physiology and Animal Nutrition
ISSN:1230-1388