Effect of dietary plant tannin supplementation on rumen fermentation and enteric methane production

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16170%2F25%3A43882766" target="_blank" >RIV/62157124:16170/25:43882766 - isvavai.cz</a>

Alternative codes found

RIV/26788462:_____/25:N0000014 RIV/26788462:_____/25:N0000015 RIV/62156489:43210/25:43926939

Result on the web

<a href="http://DOI10.22358/jafs/192660/2025" target="_blank" >http://DOI10.22358/jafs/192660/2025</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22358/jafs/195648/2025" target="_blank" >10.22358/jafs/195648/2025</a>

Result language

angličtina

Original language name

Effect of dietary plant tannin supplementation on rumen fermentation and enteric methane production

Original language description

Although protozoa play a crucial role in ruminal microbial networks, their contribution to rumen fermentation and methane emissions remains controversial. Tannins, polyphenolic compounds derived from various plants, can affect microbial activity, fermentation processes, protein degradation, and methane production in the rumen. This study investigated the impact of dietary supplementation with chestnut, quebracho, and seaweed tannins on rumen fermentation parameters, protozoan populations, and enteric methane production. Rumen fluid (RF) samples were collected from four cannulated Simmental cows assigned to four dietary treatments: a control diet (0TAN) and three tannin-enriched diets: 150 g/day (150TAN), 200 g/day (200TAN), and 250 g/day (250TAN) in a 4 x 4 Latin-square design. The basal diet contained 64.3% meadow hay, 13.1% grass silage, 9% maize silage, 11.5% cereal concentrate, and 0.7% mineral concentrate. Most rumen fermentation parameters, including pH, total volatile fatty acids, acetate, propionate, acetate:propionate ratio, and isovalerate, were significantly influenced (P &lt; 0.005) by the tannin-enriched diet, except for ammonia and butyrate concentrations. Tannin supplementation at 200 g/day, the concentrations of acetate, isovalerate, and the acetate ratio significantly increased (P &lt; 0.001), whereas propionate production decreased. Significant effects (P &lt; 0.001) were also observed with respect to the total number of protozoa and the relative abundance of protozoan genera. These findings suggest that dietary tannins modulate protozoan composition and the rumen microbial community, demonstrating antimethanogenic potential. The results confirm that tannins suppress rumen methanogenesis by reducing the size of protozoan population and enteric methane production.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Project

<a href="/en/project/SS06020190" target="_blank" >SS06020190: Development of an anti-methanogenic feed supplement to mitigate the environmental impact of livestock farming</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Animal and Feed Sciences

ISSN

1230-1388

e-ISSN

1230-1388

Volume of the periodical

34

Issue of the periodical within the volume

2

Country of publishing house

PL - POLAND

Number of pages

12

Pages from-to

272-283

UT code for WoS article

001460647500013

EID of the result in the Scopus database

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