SHORT COMMUNICATION
Digestion kinetics of NDF in dairy cows fed silages
from primary growth and regrowth of grass
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
Publication date: 2004-08-30
Corresponding author
J. Anim. Feed Sci. 2004;13(Suppl. 1):127-130
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.
CITATIONS (4):
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
K. Kuoppala, S. Ahvenjärvi, M. Rinne, A. Vanhatalo
Journal of Dairy Science
2.
The effect of cutting time of grass silage in primary growth and regrowth and the interactions between silage quality and concentrate level on milk production of dairy cows
K. Kuoppala, M. Rinne, J. Nousiainen, P. Huhtanen
Livestock Science
K. Kuoppala, M. Rinne, J. Nousiainen, P. Huhtanen
Livestock Science
3.
Estimation of indigestible NDF in forages and concentrates from cell wall composition
M. Krämer, M.R. Weisbjerg, P. Lund, C.S. Jensen, M.G. Pedersen
Animal Feed Science and Technology
M. Krämer, M.R. Weisbjerg, P. Lund, C.S. Jensen, M.G. Pedersen
Animal Feed Science and Technology
4.
Evaluation of the factors affecting silage intake of dairy cows: a revision of the relative silage dry-matter intake index
P. Huhtanen, M. Rinne, J. Nousiainen
Animal
P. Huhtanen, M. Rinne, J. Nousiainen
Animal
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| ISSN: | 1230-1388 |
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