0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
SHORT COMMUNICATION
 
CC-BY 4.0
 
 

Influence of energy supply on microbial protein synthesis and renal urea handling in Corriedale sheep

I. Tebot 1  ,  
A. L. Ibarra 1,  
F. Purtscher 1,  
 
1
Departamento de Fisiología, Facultad de Veterinaria, Montevideo 11600, Uruguay
J. Anim. Feed Sci. 2004;13(Suppl. 1):223–226
Publish date: 2004-08-30
KEYWORDS
ABSTRACT
The effect of high energy intake on microbial protein production and renal urea kinetics was studied in Corriedale sheep by the urinary allantoin method and renal functional tests. High energy diet increased microbial protein production (6.61±0.90 vs 4.30±0.60 g/d in normal energy diet, P<0.05). The efficiency of N utilization by rumen microbes tended to improve (19.8±4.2 vs 16.8±1.9 g microbial N/kg DOMR, NS). A reduction in fractional excretion of urea and a tendency to decrease of urinary urea elimination were also observed. This renal urea sparing reduced N losses, contributing to the blood urea pool available for rumen recycling.
CORRESPONDING AUTHOR
I. Tebot   
Departamento de Fisiología, Facultad de Veterinaria, Montevideo 11600, Uruguay
ISSN:1230-1388