Ruminant Nutrition and Digestive Physiology

Microbial alginate foraging is conserved in geographically and taxonomically distinct ruminant microbiomes

The paper investigates how two ruminant species digest brown algae by analyzing microbial pathways and omics data from in vivo and in vitro experiments.

Shifts in ruminant fermentation during inhibition of methanogenesis are reflected in the isotope compositions of volatile fatty acids.

This study uses isotopic analysis of volatile fatty acids to show that inhibiting methanogenesis in ruminants alters microbial fermentation pathways, reducing energy-generating processes.

Global distribution of microbial carrageenan foraging pathways reveals widespread latent traits within the genetic dark matter of ruminant intestinal microbiomes

The paper identifies carrageenan catabolism pathways in ruminant gut microbiomes, revealing their widespread distribution and evolutionary history.

Rumenomics: Evaluation of rumen metabolites from healthy sheep identifies differentially produced metabolites across sex, age, and weight

A meta-analysis of 3-nitrooxypropanol effects on methane production and yield in beef cattle

This meta-analysis quantifies 3-NOP's effect on reducing methane production and yield in beef cattle, showing average reductions of 36.2% and 33.2%, with efficacy influenced by diet composition.

Intricate microbiome differences observed in lactating cows across methane intensity phenotypes

The paper identifies functional differences in the rumen microbiome of lactating cows with varying methane intensity, linking specific metabolic pathways to methane production efficiency.

Ruminosignatures associated with methane emissions and feed efficiency across geographies and cattle breeds

This study identifies Ruminosignatures in cattle rumen microbiota linked to methane emissions and feed efficiency across breeds and geographies.

A reliable in vitro rumen culture system and workflow for screening anti-methanogenic compounds

The paper develops an in vitro rumen culture system to screen anti-methanogenic compounds and demonstrates its efficacy with various inhibitors.

Red seaweed supplementation suppresses methanogenesis in the rumen, revealing potentially advantageous traits among hydrogenotrophic bacteria

This study investigates how Asparagopsis supplementation affects rumen microbiota, finding reduced methane production and changes in microbial gene expression and function.

Dynamic sensitivity analysis of a mathematical model describing the effect of the macroalgae Asparagopsis taxiformis on rumen fermentation and methane production under in vitro continuous conditions

This paper conducts a dynamic sensitivity analysis of a rumen fermentation model to understand how AT affects CH4 and VFA production under in vitro conditions.

Effects of 3-Nitrooxypropanol on Methane Emission, Growth and Feed Intake in Growing Calves from 5 Months of Age

This study shows that 3-NOP reduces methane emissions in growing calves without affecting feed efficiency.

Methanogenesis inhibition remodels microbial fermentation and stimulates acetogenesis in ruminants

This study shows that 3-NOP reduces methane emissions in ruminants by altering microbial communities and fermentation pathways, but limits productivity gains due to shifts in hydrogen-cycling microbes.

The selective culture and enrichment of major rumen bacteria on three distinct anaerobic culture media

This study isolates and characterizes rumen bacteria using three anaerobic media, showing that different media enrich distinct bacterial genera, highlighting the importance of defined media for studying rumen microbiota.

Effect of fumarate and live yeast on methane emissions, rumen fermentation, blood metabolites, and lactation performance in dairy goats

This study evaluates the effects of fumarate and live yeast on methane emissions, rumen fermentation, and lactation performance in dairy goats, finding that fumarate reduces methane and improves energy utilization.

A meta-analysis of effects of seaweed and other bromoform containing feed ingredients on methane production, yield, and intensity in cattle

This study evaluates the impact of bromoform-containing feed ingredients on methane emissions in cattle, finding significant reductions in methane production and yield with varying efficacy based on cattle type and diet.

Divergent effects of 3-nitrooxypropanol on enteric methane emissions in Holstein and Brown Swiss cows, and its lack of synergy with Acacia mearnsii tannin extract

This study examines the effects of 3-NOP and tannin extract on methane emissions and dairy performance in Holstein and Brown Swiss cows, finding no synergy between the two additives and breed-specific responses to 3-NOP.

Protozoal populations drive system-wide variation in the rumen microbiome

The paper identifies two rumen community types linked to protozoal populations and shows their impact on microbial interactions and metabolite profiles.

Antepartum high dietary supply of calcium affects bone homeostasis and offspring growth in dairy sheep and dairy goats

This study shows that high dietary calcium intake in late gestation does not disrupt maternal calcium homeostasis in dairy sheep and goats but reduces offspring weight gain.

Multi-omics analysis of the mechanism of alfalfa and wheat-induced rumen flatulence in Xizang sheep

This study investigates the mechanisms of alfalfa and wheat-induced rumen flatulence in Xizang sheep by analyzing microbial, metabolic, and transcriptomic changes.

Effects of rumen-bypass protein supplement on growth performance, hepatic mitochondrial protein complexes, and hepatic immune gene expression of beef steers with divergent residual feed intake

This study examines how a rumen-bypass protein supplement affects growth, immune gene expression, and mitochondrial function in beef steers with different residual feed intake phenotypes, finding effects dependent on RFI status.

Is apparent digestibility associated with residual feed intake and enteric methane emission in Nellore cattle?

The paper evaluates the relationship between digestibility, residual feed intake (RFI), and enteric methane emission in Nellore cattle, finding lower methane emissions in more feed-efficient animals.

Genomic architecture of three newly isolated unclassified Butyrivibrio species elucidate their potential role in the rumen ecosystem

The paper isolates three Butyrivibrio strains from buffalo rumen, characterizes their genomes, and identifies their potential roles in lignocellulose degradation and rumen metabolism.

Red seaweed (Asparagopsis taxiformis) supplementation reduces enteric methane by over 80 percent in beef steers

Supplementing beef steer diets with 0.25% or 0.5% Asparagopsis taxiformis for 147 days reduces enteric methane yield by up to 80% and improves feed efficiency without altering meat quality.

Effect of high proportion concentrate dietary on Yak jejunal structure, physiological function and protein composition during cold season

This study examines how high concentrate diets affect Yak jejunal structure, function, and protein composition during cold seasons, finding differences in enzyme activity, morphology, and protein expression between grazing and intensive feeding.

Evaluation of the Potential of Two Common Pacific Coast Macroalgae for Mitigating Methane Emissions from Ruminants

This study evaluates two Pacific Coast macroalgae for their ability to reduce methane emissions from ruminants in vitro, finding A. taxiformis significantly more effective than Z. farlowii.

Metabolic Modeling Elucidates the Transactions in the Rumen Microbiome and the Shifts upon Virome Interactions

The paper uses genome-scale metabolic modeling to analyze interactions between rumen microbes and phages, revealing how viral genes influence microbial metabolism and community dynamics.

DNA methylation, microRNA expression profiles and their relationships with transcriptome in grass-fed and grain-fed Angus Cattle rumen tissue

This study examines DNA methylation and microRNA expression in rumen tissue of grass-fed and grain-fed Angus cattle, identifying gene-methylation and microRNA-target gene relationships linked to rumen function differences.

Effect of the macroalgae Asparagopsis taxiformis on methane production and the rumen microbiome assemblage

This study evaluates the effect of Asparagopsis taxiformis on methane production and rumen microbiome in dairy cattle, finding a 95% reduction in methane with no negative impact on fermentation parameters.

Comprehensive transcriptional profiling of the gastrointestinal tract of ruminants from birth to adulthood reveals strong developmental stage specific gene expression

This study characterizes gene expression changes in the gastrointestinal tract of sheep from birth to adulthood, identifying developmental stage-specific differences, particularly in the rumen complex and immune-related genes.

Changes in rumen microbiota of cows in response to dietary supplementation with nitrate, linseed and saponin alone or in combination.

This study examines how dietary additives like linseed, saponins, and nitrate affect rumen microbiota in cows, revealing their impact on hydrogen production and methane mitigation.