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
 
 

Digestion kinetics of NDF in dairy cows fed silages from primary growth and regrowth of grass

K. Kuoppala 1  ,  
M. Rinne 1,  
J. Nousiainen 2,  
 
1
MTT Agrifood Research Finland, Animal Production Research, FIN-31600 Jokioinen, Finland
2
Valio Ltd, Farm Services, P.O. Box 10, FIN-00039 Valio, Finland
J. Anim. Feed Sci. 2004;13(Suppl. 1):127–130
Publish date: 2004-08-30
KEYWORDS
ABSTRACT
Two grass silages from primary growth (PG) and two from regrowth (RG) were investigated in a 4×4 Latin square experiment by rumen cannulated dairy cows. Digestion kinetics of NDF was determined by rumen evacuations and the omasal canal flow measurements. Dry matter intake of PG was higher, rumen content of indigestible NDF (INDF) lower and passage rate of INDF higher in PG than in RG. Rumen contents of NDF and INDF increased with progressing growth stage of grass within harvest. It is concluded that intake of early cut PG and both RG silages was not limited by rumen fill alone.
CORRESPONDING AUTHOR
K. Kuoppala   
MTT Agrifood Research Finland, Animal Production Research, FIN-31600 Jokioinen, Finland
 
CITATIONS (1):
1. Effects of feeding grass or red clover silage cut at two maturity stages in dairy cows. 2. Dry matter intake and cell wall digestion kinetics
K. Kuoppala, S. Ahvenjärvi, M. Rinne, A. Vanhatalo
Journal of Dairy Science
ISSN:1230-1388