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Rumen_microbiome

ABSTRACT: Mechanistic actions of a yeast fermentation product on rumen microbiome of lactating dairy cows during subacute ruminal acidosis (SARA)

PROVIDER: PRJEB34231 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR3515510_1.fastq.gz	Fastqsanger.gz
	ERR3515510_2.fastq.gz	Fastqsanger.gz
	ERR3515520_1.fastq.gz	Fastqsanger.gz
	ERR3515520_2.fastq.gz	Fastqsanger.gz
	ERR3515530_1.fastq.gz	Fastqsanger.gz

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Changes in rumen fermentation and transcriptomes of liver tissue in Holstein cows with and those without subacute ruminal acidosis during the periparturient period

Project description:We investigated changes in rumen fermentation, peripheral blood metabolites and hormones, and hepatic transcriptomic dynamics in Holstein cows with and those without subacute ruminal acidosis (SARA) during the periparturient period.

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Project description:Saccharomyces cerevisiae fermentation products (SCFP) stabilizes the rumen microbiome of lactating dairy cows during subacute ruminal acidosis (SARA)

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Project description:Postbiotics from Saccharomyces cerevisiae fermentation stabilize microbiota in rumen digesta during grain-based subacute ruminal acidosis (SARA) in lactating dairy cows

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Project description:Postbiotics from Saccharomyces cerevisiae fermentation stabilize microbiota in rumen liquid digesta during grain-based subacute ruminal acidosis (SARA) in lactating dairy cows,

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Effect of Dietary Grain on Rumen Papillae Gene Expression in Holstein Dairy Cows

Project description:Four mature, non-lactating dairy cattle were transitioned from a high forage diet (HF; 0% grain) to a high grain diet (HG; 65% grain) that was fed for three weeks. Rumen papillae biopsies were performed during the HF baseline (week 0) and after the first (week 1) and third week (week 3) of the grain challenge to create a transcript profile for the the short and long-term adaption of the rumen epithelium during ruminal acidosis. Comparison between three weekly means (n=4 for each week, 12 arrays in total)

2009-08-28 | E-GEOD-17849 | biostudies-arrayexpress

Effect of Dietary Grain on Rumen Papillae Gene Expression in Holstein Dairy Cows

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Potassium balance in lactating and non-lactating dairy cows

Project description:M. Berg, J. Plöntzke, S. Leonhard-Marek, K.E. Müller & S. Röblitz. A dynamic model to simulate potassium balance in dairy cows. Journal of Dairy Science 100, 12 (2017). High-performing dairy cows require a particular composition of nutritional ingredients, adapted to their individual requirements and depending on their production status. The optimal dimensioning of minerals in the diet, one being potassium, is indispensable for the prevention of imbalances. Potassium balance in cows is the result of potassium intake, distribution in the organism, and excretion, and it is closely related to glucose and electrolyte metabolism. In this paper, we present a dynamical model for potassium balance in lactating and nonlactating dairy cows based on ordinary differential equations. Parameter values were obtained from clinical trial data and from the literature. To verify the consistency of the model, we present simulation outcomes for 3 different scenarios: potassium balance in (1) nonlactating cows with varying feed intake, (2) nonlactating cows with varying potassium fraction in the diet, and (3) lactating cows with varying milk production levels. The results give insights into the short- and long-term potassium metabolism, providing an important step toward the understanding of the potassium network, the design of prophylactic feed additives, and possible treatment strategies.

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Intramammary LPS impacts hindgut microbes in SARA challenged lactation cows

Project description:Intramammary lipopolysaccharide infusion impacts the hindgut microbial composition and fermentation in dairy cows challenged with subacute ruminal acidosis.

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