Effects of Feeding Xylose-treated Soybean Meal and Parity on Performance of Dairy Cows in Early Lactation

Authors

  • M. J. Moghadam Department of Animal Science, Islamic Azad University of Karaj, Tehran, Iran 19717
  • H. Amanlou Department of Animal Science, Zanjan University, Zanjan, Iran
  • F. Fard Department of Animal Science, Islamic Azad University of Karaj, Tehran, Iran 19717
  • A. R. Noushari Department of Animal Science, Islamic Azad University of Karaj, Tehran, Iran 19717
  • M. H. Yazdi Department of Animal Science, Razi University, Kermanshah, Iran 19717

DOI:

https://doi.org/10.21423/aabppro20094347

Keywords:

Dairy cows, soybean meal, xylose, rumen undegradable protein, protein supplement

Abstract

Dairy cows require sufficient protein in the diet to optimize microbial growth and adequate amounts of essential AA to be available in the small intestine to provide for their increased metabolic and lactation demands. Soybean meal (SBM) is the most commonly used protein supplement and is an excellent supplemental protein in dairy diets because of good palatability, as well as high availability and similar AA balance relative to the composition of milk protein. However, relative to other protein sources, SBM has a low AA efficiency because of extensive ruminal degradation. The objective of this experiment was to determine the effectiveness of xylose-treated of soybean meal (XSBM) on the productive performance of lactating cows fed XSBM as the major source of rumen undegradable protein (RUP).

Cover image of the 42nd Conference Proceedings: Cattle grazing in a spring field along the horizon. In the foreground, one brown cow with a triangle marking and ear tags is posing. Yellow background.

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Published

2009-09-10

Issue

2009

Section

Posters