Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-07T23:12:48.105Z Has data issue: false hasContentIssue false
  • English
  • Français

Crude protein content and ruminal degradation kinetics of eight pasture species

Published online by Cambridge University Press:  23 November 2017

P. Shawrang ,
A. Nikkhah  and
A. A. Sadeghi
P. Shawrang
Affiliation:
Dep. Of Animal Science, Faculty of Agriculture, Tehran University, Tehran, Iran
A. Nikkhah
Affiliation:
Dep. Of Animal Science, Faculty of Agriculture, Tehran University, Tehran, Iran
A. A. Sadeghi*
Affiliation:
Dep. Of Animal Science, Faculty of Agriculture, Science & Research campus, Islamic Azad University Tehran, Iran
*
Email: [email protected]
Get access

Extract

Ration formulation systems require information on nutrient requirements of the animal and reliable values for rumen degradable and undegradable fractions of feed ingredients. Ruminally degraded protein in excess of microbial requirement results in nitrogen loss as ammonia and inefficient nitrogen utilization by ruminants. Protein degradation kinetics of most oilseed meals and some forages have been determined (Sadeghi et al., 2004; Wilkerson et al., 1995), but minimal information exists regarding ruminal protein degradation of pasture forages. The objective of this research was to determine ruminal dry matter (DM) and crude protein (CP) degradation kinetic parameters of eight pasture species.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 157
Copyright
Copyright © The British Society of Animal Science 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

AFRC, 1992. Nutrient requirements of ruminant animals: protein. Report No. 9. Nutrition abstracts and reviews series B 62: 787–835.Google Scholar
AOAC.1990. Official Methods of Analysis, 16th ed. Association of Official Analytical Chemists, Gaithersburg, MD, USA.Google Scholar
Ørskov, E. R. and McDonald, I. 1979. The estimation of protein disappearance in the rumen from incubation measurements weighted according to rate of passage. Journal of Agriculture Science (Cambridge) 92: 499–503.Google Scholar
Sadeghi, A. A. 2004. Protein degradation kinetics of some feedstuffs by using SDS-PAGE. PhD thesis. Faculty of Agriculture, Science and Research Campus, Islamic Azad University, Tehran, Iran.Google Scholar
SAS Institute Inc., 1996. Statistical Analysis System User’s Guide, SAS Institute, Cary, NC, USA.Google Scholar
Wilkerson, V. A., Klopfenstein, T. J., and Stroup, W. W. 1995. A collaborative study of in situ forage protein degradation. Journal of Animal Science 73: 583–588.CrossRefGoogle ScholarPubMed