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Ruminant microbiota : research status and impacts of microbiota on animal performance and health

Abstract : Ruminants, like other mammals, host trillions of symbiotic microbes, the microbiota, in their skin, digestive, respiratory and genital tracts, etc. The composition and functions of these microbiota depend on their location. Omics approaches, particularly new- generation sequencing, have made the characterization of the microbiota, their genes and activities possible. A particularity of ruminants is the presence of a specialized microbiota in the rumen composed of bacteria, protozoa, archea and fungi. Located upstream of the absorption sites, it plays a central role in ruminant nutrition. Ruminant production is impacted by the gut microbiota (whose population is specific to the segments under consideration) and the microbiota associated with udder skin (a major reservoir of raw milk microbial diversity). These different microbes interact with each other and with their host under the influence of various factors of variation, such as the diet, the living environment and breeding practices in early life and the living environment. Recent studies show a potential genetic control by the host of its microbial communities. Also, there is accumulated evidence of the links between the microbiota and animal health, feed efficiency, performance, product quality and greenhouse gas production. Such findings justify the growing interest of farmers for animal microbiota and their modulation.
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https://hal.inrae.fr/hal-03227796
Contributor : Sabine Rossi <>
Submitted on : Tuesday, May 18, 2021 - 9:26:24 AM
Last modification on : Tuesday, June 15, 2021 - 2:57:34 PM

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Asma Zened, Evelyne Forano, Céline Delbes, Isabelle Verdier-Metz, Diego Morgavi, et al.. Ruminant microbiota : research status and impacts of microbiota on animal performance and health. INRAE Productions Animales, INRAE, 2020, 33 (4), pp.249-260. ⟨10.20870/productions-animales.2020.33.4.4597⟩. ⟨hal-03227796⟩

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