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October 17, 2025Journal of Experimental Agriculture International

Concentrate Intake Affects Ruminal pH and Milk Production of Lactating Cows on Pasture

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Authors

GCGatha. R. ClevengerLTL.R. TagerCLChiara Leonardi

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Overview

This research demonstrates how concentrate supplementation affects ruminal pH and milk yield in grazing lactating cows, indicating potential risks.

Key Points

  • Increased concentrate intake results in higher milk production but lowers ruminal pH.
  • Daily mean ruminal pH decreased as concentrate consumption rose, leading to more time below pH 5.8.
  • Cows consuming high levels of concentrate had increased milk yield and component concentrations.
  • Pasture intake decreased with increased concentrate intake, negatively impacting forage digestibility.

Cite This Study

Clevenger et al. (2025) studied this question.

synapsesocial.com/papers/68f199bfde32064e504dc977https://doi.org/10.9734/jeai/2025/v47i103828
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Ruminal pH Dynamics and Milk Production Response to Concentrate Supplementation in Pasture-Based Dairy Cows2026
  2. 2Milk yield and feeding behaviour responses to two flat-rate levels of concentrate supplementation fed over a period of 8 months to cohorts of grazing dairy cows, differing in genotype, bodyweight, or milk yield2024 · 3 citations
  3. 3Impact of corn silage or corn silage plus protein supplementation on the ingestive and rumination behaviours, ruminal fermentation characteristics and efficiency of grazing dairy cows2024 · 1 citations
  4. 4Feeding concentrate pellets to early-lactation cows consuming spring ryegrass pasture did not reduce methane emissions2025
  5. 5Evaluating dietary starch concentrations in reduced-forage rations fed to lactating dairy cattle2026