Learn more about the role of rumen microorganisms and their impact on the host’s performance and health


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By A.J. Fischer, C. Villot, J.K. van Niekerk, T.T. Yohe, D.L. Renaud, M.A. Steele

Feeding sufficient amounts of colostrum in the first 24 hours of life is well-known to be vital for calf health. Less is known about... Read

By Mohammed Anouar Belaid, Maria Rodriguez-Prado, Eric Chevaux, Sergio Calsamiglia

In large, intensive beef production systems, the identification of sick animals can be difficult. Activity monitors may be able to... Read

By V. Ouellet, J. Laporta, G.E. Dahl

Heat stress during the dry period has dramatic negative impacts on the cow and her offspring. Cows that experience heat stress in late... Read

By M. Devant, G. B. Penner, S. Marti, B. Quintana, F. Fábregas, A. Bach, and A. Arís

Do cattle get “hangry” too? For some humans, lack of satisfying food options can negatively affect their mood and behavior. This... Read

By Erin E. Connor, Ransom L. Baldwin VI, Cong-jun Li, Robert W. Li, Hoyoung Chung

In this study, molecular markers of rumen development and gene networks regulating the rumen epithelium were identified. Read

By D.M. Bickhart, P.J. Weimer

In the future, we may be able to estimate dairy production using a “genotype × environment × microbial” interaction model that... Read

By Trevor J.DeVries

This research from the University of Guelph shows how the feeding behavior of dairy cows — including how, when and what cows eat... Read

By Thiago F. Fabris, Jimena Laporta, Amy L. Skibiel, Fabiana N. Corra, Bethany D. Senn, Stephanie E. Wohlgemuth, Geoffrey E. Dahl

This study from the University of Florida, Gainesville, found that cooling for the entire dry period increased milk yield up to 30... Read

By J H McCaughern, A M Mackenzie, L A Sinclair

The results of a study in 60 Holstein-Friesian dairy cows highlight the need to take account of dietary effects on rumen pH when deciding... Read

By P Kazana, N Siachos, N Panousis, G Arsenos, G E Valergakis

A study from Aristotle University in Greece showed the ruminal pH of weaned calves is related to herd-level management of the pre-weaning... Read

By Jörg R. Aschenbach, Qendrim Zebeli, Amlan K. Patra, Gabriele Greco, Salah Amasheh, Gregory B. Penner

The ruminal epithelium is the main site for absorption of key nutrients and electrolytes. Yet, the absorptive function has to be highly... Read

By E H Cabezas-Garcia, A W Gordon, C P Ferris

An altered metabolic state is common in high-yielding dairy cows during early lactation. A study in the United Kingdom set out to determine... Read

The cornerstone of ruminant health and performance is the rumen, where forage and feed are converted into energy and microbial protein thanks to the activity of the rumen microflora: bacteria, protozoa and fungi.

When the rumen microbiota is challenged, a ruminal microbial imbalance occurs which impairs fiber digestion, increases acidosis risk, and may trigger inflammation which negatively impacts digestive comfort and well-being.