ORIGINAL PAPER
Estimation of digesta kinetics of different particle
size fractions using rumen evacuation technique in
dairy cows fed red clover-grass silag
| 1 | MTT Agrifood Research Finland, Animal Production Research,
31600 Jokioinen, Finland |
| 2 | Animal Science Department, Agricultural Faculty, Ferdowsi University of Mashhad,
91775-1163 Mashhad, Iran |
| 3 | Current address: Department on Animal Science, Cornell University, Ithaca, NY 14853-4801, USA |
CORRESPONDING AUTHOR
Publication date: 2007-11-21
J. Anim. Feed Sci. 2007;16(4):538–554
KEYWORDS
ABSTRACT
Ruminal kinetic parameters of different particle size fractions were estimated using four
lactating dairy cows in a 4×4 Latin square experiment. Cows received red clover-grass silage alone
diet. Ruminal contents and faeces were divided into six particle size fractions by wet sieving.
Indigestible (iNDF) and potentially digestible (pdNDF) neutral detergent fibre were separated by a
12d ruminal in situ incubation. Particles >2.5 mm formed the greatest dry matter, iNDF and pdNDF
pools in the rumen. Passage rates of iNDF and pdNDF increased with decreasing particle size.
Particle breakdown in the rumen was a relatively slow process (0.041 h-1). Contribution of particle
breakdown to turnover of different particle size fractions of rumen iNDF decreased with decreasing
particle size while the contribution of passage increased. Accumulation of iNDF in the rumen was
greater than generally observed with grass-based diets and pdNDF was rapidly digested.
CITATIONS (3):
1.
Ruminal large and small particle kinetics in dairy cows fed red clover and grass silages harvested at two stages of growth
A.R. Bayat, M. Rinne, K. Kuoppala, S. Ahvenjärvi, A. Vanhatalo, P. Huhtanen
Animal Feed Science and Technology
A.R. Bayat, M. Rinne, K. Kuoppala, S. Ahvenjärvi, A. Vanhatalo, P. Huhtanen
Animal Feed Science and Technology
2.
A comparison of ruminal or reticular digesta sampling as an alternative to sampling from the omasum of lactating dairy cows
F. Fatehi, S.J. Krizsan, H. Gidlund, P. Huhtanen
Journal of Dairy Science
F. Fatehi, S.J. Krizsan, H. Gidlund, P. Huhtanen
Journal of Dairy Science
3.
Ruminal large and small particle kinetics in dairy cows fed primary growth and regrowth grass silages harvested at two stages of growth
A.R. Bayat, M. Rinne, K. Kuoppala, S. Ahvenjärvi, P. Huhtanen
Animal Feed Science and Technology
A.R. Bayat, M. Rinne, K. Kuoppala, S. Ahvenjärvi, P. Huhtanen
Animal Feed Science and Technology
RELATED ARTICLE
Assigning DOI numbers, introducing articles from supplements and recent publications to POL-index database, maintaining anti-plagiarism detection, electronic system to proceed manuscripts and webpage of the Journal with interactive pdf files, and language correction of manuscripts published in Journal of Animal and Feed Sciences are financed in the years 2018–2019 by the Ministry of Science and Higher Education from the funds for science popularization activities, Agreement No. 631/P-DUN/2018.
We process personal data collected when visiting the website. The function of obtaining information about users and their behavior is carried out by voluntarily entered information in forms and saving cookies in end devices. Data, including cookies, are used to provide services, improve the user experience and to analyze the traffic in accordance with the Privacy policy. Data are also collected and processed by Google Analytics tool (more).
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.
You can change cookies settings in your browser. Restricted use of cookies in the browser configuration may affect some functionalities of the website.