A phylogenetic assessment of bovine rumen methanogens during perturbation by acidosis
نویسندگان
چکیده
منابع مشابه
Bovine rumen epithelium undergoes rapid structural adaptations during grain-induced subacute ruminal acidosis.
Alterations in rumen epithelial structure and function during grain-induced subacute ruminal acidosis (SARA) are largely undescribed. In this study, four mature nonlactating dairy cattle were transitioned from a high-forage diet (HF; 0% grain) to a high-grain diet (HG; 65% grain). After feeding the HG diet for 3 wk, the cattle were transitioned back to the original HF diet, which was fed for an...
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Assessment of the rumen fluid is an ancillary examination technique used in the clinical examination both of the individual bovine patient and at population level. The specific function and structure of the rumen makes ruminants different from other animals. Therefore, it logical to assess the rumen in detail when confronted with a bovine patient. Assessment of the rumen fluid is essential to a...
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The targeting of mcrA or 16S rRNA genes by quantitative PCR (qPCR) has become the dominant method for quantifying methanogens in rumen. There are considerable discrepancies between estimates based on different primer sets, and the literature is equivocal about the relationship with methane production. There are a number of problems with qPCR, including low primer specificity, multiple copies of...
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Vaccination against rumen methanogens offers a practical approach to reduce methane emissions in livestock, particularly ruminants grazing on pasture. Although successful vaccination strategies have been reported for reducing the activity of the rumen-dwelling organism Streptococcus bovis in sheep and S. bovis and Lactobacillus spp. in cattle, earlier approaches using vaccines based on whole me...
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Methanogens are methane-producing archaea that plays a key role in the global carbon cycle. To date, the evolutionary history of methanogens and closely related nonmethanogen species remains unresolved among studies conducted upon different genetic markers, attributing to horizontal gene transfers (HGTs). With an effort to decipher both congruent and conflicting evolutionary events, reconstruct...
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ژورنال
عنوان ژورنال: Reproduction Nutrition Development
سال: 1997
ISSN: 0926-5287
DOI: 10.1051/rnd:19970754