ArticleAnimal bioscience2026
The impact of dietary supplementation with tannic acid on the digestion of nutrients, rumen microflora, rumen fermentation, and methane production in Liuyang black goats.
Article in Animal bioscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Plant bioactive compounds as functional feed additives for improving livestock and poultry production: review.Animal bioscience · 2026Article
- Interactive Effects ofAnimals : an open access journal from MDPI · 2026Article
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Authors and funding
10 authors.
Funding
Abstract
objectiveThis study investigated the effects of dietary tannic acid on methane production, nutrient digestibility, rumen fermentation, and rumen microbiota in Liuyang black goats.
methodsTwelve adult goats were randomly assigned to two groups: a control group and a treatment group that received 2% tannic acid in their diet. The experiment consisted of two stages, each comprising a 10-day adaptation period followed by and a 5-day sampling phase. Methane emission was measured using a mobile open-circuit respirometry system, while rumen fluid samples were analyzed for volatile fatty acids, ammonia nitrogen, and microbial composition by 16S rRNA sequencing.
resultsThe results indicated that the tannic acid significantly reduced overall methane emission (p<0.05), methane per dry matter intake (p<0.05), acid detergent fiber intake (p<0.05), and neutral detergent fiber intake (p<0.05). Microbial analysis showed increased relative abundance of Firmicutes (p<0.05) and decreased Methanobrevibacter and Prevotella. Before feeding, tannic acid led to a significant increase in the concentration of valerate in the rumen fluid (p<0.05), while the acetate to propionate ratio was significantly decreased (p<0.05). Three hours post feeding, the concentrations of both butyrate and valerate were significantly increased (p<0.05).
conclusionDietary tannic acid effectively reduced methane emission and enhanced feed efficiency in Liuyang black goats by modifying rumen fermentation and microbial activity. These findings indicate the potential of tannic acid as a sustainable feed supplement for ruminants; nevertheless, the long-term effects on health and production necessitate more research.
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Registered trials
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