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Anaerobe. 2007 Apr;13(2):57-64. Epub 2007 Feb 20.

Influence of high temperature and humidity on rumen bacterial diversity in Holstein heifers.

Author information

1
National Institute of Livestock and Grassland Science, Tsukuba, Ibaraki 305-0901, Japan. ktajima@affrc.go.jp

Abstract

The effect of heat and humidity stresses on the rumen bacterial molecular diversity of heifers was studied. No statistically significant changes in the rumen microbiota composition were found in the first experiment (average body mass 250kg) while in the second and third experiments (additional variables included the relative humidity and body weight), the microbiota composition was significantly different at elevated environmental temperatures and humidity. These shifts were accompanied by the decrease in concentration of short-chain fatty acids in the rumen.

PMID:
17317231
DOI:
10.1016/j.anaerobe.2006.12.001
[Indexed for MEDLINE]

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