Tag: Rumen microflora
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Host-rumen microbe interactions may be leveraged to improve the productivity of dairy cows
In the future, we may be able to estimate dairy production using a “genotype × environment × microbial” interaction model that accurately combines all factors affecting milk production.
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Estimation of fatty acid profiles in meat using rumen microbiome information from beef cattle
The use of relative rumen microbial gene abundances to estimate meat fatty acids profiles has great potential as proxy traits for breeding.
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Progressive Colonization of Bacteria and Degradation of Rice Straw in the Rumen by Illumina Sequencing
This study evaluates the degradation pattern of rice straw by ruminal bacteria and identifies the bacteria that colonize rice straw during its digestion in the cow rumen.
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Presence of Selected Methanogens, Fibrolytic Bacteria, and Proteobacteria in the Gastrointestinal Tract of Neonatal Dairy Calves from Birth to 72 Hours
This article provides insight into rumen microbial colonization, which is essential for calves’ future growth and digestive health.
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Changes in digestive microbiota due to a grain-based SARA challenge
A study showing how a grain-based diet-induced subacute ruminal acidosis (SARA) challenge impacts the rumen microbiota of lactating dairy cows. The richness, the diversity, as well as the stability of the bacterial communities were reduced for SARA challenged cows. Both ruminal and fecal microbiota were changed, indicating that the rumen but also the hindgut microbiota are affected by SARA challenge.
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Transient feeding of a concentrate-rich diet increases the severity of SARA
An interesting study looking at the effect of feeding pattern on subacute ruminal acidosis (SARA) severity and rumen VFA concentrations in dairy cows.
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New Functional DNA Microarray to Monitor Rumen Microbiota Activity
French scientists recently developed an innovative functional DNA microarray called FibroChip, which targets 392 genes involved in monitoring ruminal cellulose and hemi-cellulose degradation.
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Metatranscriptomics reveals the rumen microbial fybrolitic communities
A metatranscriptomics study of dairy cow rumen microbiota looked at both the expression of genes encoding fiber degrading enzymes (carbohydrate-active enzymes, or CAZymes) and the microbial populations.
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Morgavi D.P., Kelly W.J., Janssen P.H., and Atwood G.T. 2012.
Rumen microbial (meta)genomics and its application to ruminant production. Animal. 1:1-18.
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McSweeney C.S., and Mackie R.I. 2012.
Micro-organisms and ruminant digestion: State of knowledge, trends and future prospects. Commision on Genetic Resources for Food and Agriculture. Background study paper No.61.