Summary
This crossover trial in six lactating dairy cows evaluated dietary supplementation with Scutellariae radix flavonoid extract (25 g/d) on production and metabolic outcomes. The supplement tended to increase milk yield and decreased milk somatic cell counts whilst reducing systemic markers of oxidative stress and inflammation. Changes in rumen and duodenal microbial communities, particularly enrichment of butyrate-producing Butyrivibrio species and increased ruminal butyrate concentration, suggest the extract enhances gastrointestinal health and host immunity, potentially explaining improved lactation performance and milk quality.
Regional applicability
Findings on botanical extract supplementation and rumen microbiology may inform UK dairy producers exploring feed additives to improve milk quality and udder health without antimicrobials. However, the small sample size (n=6 cows) and unknown origin of the study limit direct applicability; larger, independently replicated trials in UK dairy herds would be needed to validate commercial relevance.
Key measures
Milk yield, milk urea nitrogen, milk somatic cell counts, plasma aspartate aminotransferase, malondialdehyde, tumour necrosis factor-α, interleukin-1β, ruminal butyrate concentration, rumen and duodenal microbial community composition and relative abundance of Butyrivibrio
Outcomes reported
The study measured lactation performance (milk yield, milk composition, somatic cell counts), plasma biochemical parameters (liver enzymes, oxidative stress markers, inflammatory cytokines), ruminal volatile fatty acids, and microbial community composition in rumen, duodenum and faeces of dairy cows supplemented with Scutellariae radix flavonoid extract versus control.
Topic tags
Dig deeper with Pulse AI.
Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.