高温高湿对荷斯坦小母牛瘤胃细菌多样性的影响。
Influence of high temperature and humidity on rumen bacterial diversity in Holstein heifers.
作者信息
Tajima Kiyoshi, Nonaka Itoko, Higuchi Kouji, Takusari Naozumi, Kurihara Mitsunori, Takenaka Akio, Mitsumori Makoto, Kajikawa Hiroshi, Aminov Rustam I
机构信息
National Institute of Livestock and Grassland Science, Tsukuba, Ibaraki 305-0901, Japan.
出版信息
Anaerobe. 2007 Apr;13(2):57-64. doi: 10.1016/j.anaerobe.2006.12.001. Epub 2007 Feb 20.
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.
研究了热应激和湿度应激对小母牛瘤胃细菌分子多样性的影响。在第一个实验（平均体重250千克）中，未发现瘤胃微生物群组成有统计学上的显著变化；而在第二个和第三个实验（额外变量包括相对湿度和体重）中，在环境温度和湿度升高时，微生物群组成存在显著差异。这些变化伴随着瘤胃中短链脂肪酸浓度的降低。
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