Intake before the next additive
Transition-cow intake is the first ration to protect: a heating TMR lowers the nutrients she can actually consume.
Knowledge level in this topic: Basic. First-pass in this topic — useful even if you already know another area well.
3 min read · 2026-09-07
Dry-matter intake is the practical gate between a ration on paper and energy entering the cow. Hot, yeasty, moldy, or poorly managed feed can reduce palatability and effective nutrient intake; no additive substitutes for correcting feed access or stability.
Walk the bunk before the product list: compare offered and refused feed, feel for heating in the mix (Penn State and UW both flag warm TMR as an intake killer), check bunk space, push-up timing, water, lying time, and fresh-cow health on the same day. Then review the evidence with the nutritionist and veterinarian. Educational only: not a diagnosis, prescription, or ration formula.
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When the fresh cow’s energy gap widens
After calving, milk demand rises faster than intake — the gap is where ketone risk lives.
Knowledge level in this topic: Intermediate. Barn-side working knowledge in this topic: checks, pairing, and what to do next.Sister note · 3 min
Home plate: Transition · The transition cow · Intake & the energy gap
- Intake & the energy gapIntakePlaced here
- Dry period is recovery timeA controlled dry period plus close-up bunk access is mammary recovery time — not an empty parking lot before calving.Sister note
- The DCAD sweet spotPrepartum DCAD is a calcium-readiness tool — moderate negative targets help; extremes buy little calcium and more acid load.Sister note
- Heat stressHeat load is temperature plus humidity, not the office thermostat. Mild heat stress starts near THI 68: shade, air, then water.Bridge → Barn
Mark size is the kind. Color is the atlas area.
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Sources
- Maximizing Feed Intake: Key for Transition Cow Success — Penn State Extension
- Transition Cow Nutrition and Management Strategies of Dairy Herds in the Northeastern United States: Associations of Nutritional Strategies with Analytes, Health, Milk Yield, and Reproduction — Kerwin AL et al., Animals (2023)
- Summer Feed Storage and Feed Bunk Management — University of Wisconsin–Madison Extension
- Dry and Transition Cows, Nutrient Requirements of Dairy Cattle — National Academies