1.054
IF5
1.150
IF
Q3
JCR
1.7
CiteScore
0.396
SJR
Q2
SJR
40
MNiSW
165.24
ICV
SHORT COMMUNICATION
 
CC-BY 4.0
 
 

Splanchnic energy expenditure and net nutrient flux in sheep fed diets with varying concentrate:forage ratios

G. D. Milano 1  
 
1
Departamento de Fisiopatología, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro, Campus Universitario, 7000, Tandil, Buenos Aires, Argentina
J. Anim. Feed Sci. 2004;13(Suppl. 1):307–310
Publication date: 2004-08-30
KEYWORDS
ABSTRACT
Six wethers, fitted with permanent catheters in the femoral artery and splanchnic blood vessels, were used in a balanced, incomplete block design to evaluate the effect of increasing the proportion of concentrate (cracked maize:soyabean meal, 90:10; T0, 0 g/kg DM; T30, 300 g/kg DM; T60, 600 g/kg DM) in the diet, at near maintenance energy intake (385±5.0 kJ EM/kg0.75), on O2 consumption and net flux of energy metabolites and NH4+ across the portal-drained viscera (PDV) and liver. Increasing the proportion of concentrate in the diet altered PDV NH4+ absorption (P<0.001; quadratic effect, P=0.04), liver NH4+ removal (quadratic effect, P=0.08) and ß-OH-butyrate production (quadratic effect, P=0.09). However, the increased concentrate:forage ratio did not affect O2 consumption by the PDV, or the net flux of glucose and lactate across the PDV, liver or splanchnic tissues. O2 consumption by the liver tended to decrease (linear effect, P=0.06) with increased concentrate:forage ratio in the diet. Increased concentrate:forage ratio might increase nutrient availability to peripheral tissues by reducing the energy expenditure of the liver.
CORRESPONDING AUTHOR
G. D. Milano   
Departamento de Fisiopatología, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro, Campus Universitario, 7000, Tandil, Buenos Aires, Argentina
 
CITATIONS (2):
1. Fluxo portal e visceral líquido de metabólitos em ovinos alimentados com feno de capim-arroz cortado com diferentes idades de rebrota
Gilberto Vilmar Kozloski, Lisiane Dorneles de Lima, Andréa Paola Ruggia Chiesa, Lisandre de Oliveira, Giovani Fiorentini, Carla Joice Härter
Revista Brasileira de Zootecnia
2. Empirical prediction of net portal appearance of volatile fatty acids, glucose, and their secondary metabolites (β-hydroxybutyrate, lactate) from dietary characteristics in ruminants: A meta-analysis approach1
C. Loncke, I. Ortigues-Marty, J. Vernet, H. Lapierre, D. Sauvant, P. Nozière
Journal of Animal Science
ISSN:1230-1388