Back to Blog

Milk Fever in Beef Cows – Vet Guide 2025

  • 167 days ago
  • 7 min read

    In this article

Milk Fever in Beef Cows – Vet Guide 2025

Milk Fever in Beef Cows – Vet Guide 2025 🐄🩺

Welcome! I’m Dr Duncan Houston BVSc. In this 2025 vet guide, we explore "milk fever"—really hypocalcemia—in beef cows. We'll cover causes, risk factors, signs, prevention, IV/oral treatment, herd planning, and Ask A Vet support to help you manage this metabolic challenge.


1. What Is Milk Fever?

Milk fever, or parturient paresis, is a metabolic disorder caused by low blood calcium (hypocalcemia), typically occurring within 72 hours after calving. Though common in dairy cows, beef herds see it too. A cow's calcium needs for milk production outpace her ability to mobilize from bone and absorb from diet.

---

2. Who’s at Risk?

  • Cows within 72 hours post-calving
  • Older multiparous beef cows
  • High-producing individuals
  • Cows on high-calcium diets pre-calving, which may blunt homeostatic responses
---

3. Signs to Recognize ⚠️

  • Usually calm and sedate, unlike grass tetany
  • Down and unable to rise
  • Decreased gut sounds and appetite
  • Weakness, muscle tremors, cold extremities, and shallow breathing
  • If untreated: coma, inability to urinate/defecate, and death
---

4. Why "Milk Fever" Doesn’t Always Include Fever

The name is misleading: fever is uncommon. It’s a hypocalcemic event, not infection. Clarity helps avoid confusion and ensures prompt metabolic treatment.

---

5. Prevention Strategies 🛡️

  1. Manage pre-calving diets: Maintain moderate calcium—avoid excess; low‑calcium diets enhance physiological capacity.
  2. Use negative DCAD pre‑partum: Adding anionic salts helps mobilize calcium—vets or nutritionists guide formulation.
  3. Provide oral calcium post-calving: boluses or gels support calcium rebound.
  4. Identify high‑risk individuals: older cows >3rd lactation and early-calving animals.
  5. Record events: track cows with prior episodes to treat early in future calvings.
---

6. Treatment Options 💉

  • IV calcium: 23% calcium borogluconate given slowly over 4–5 minutes—supervised veterinary administration.
  • Oral calcium follow‑up: boluses or drenches after IV to sustain blood levels.
  • Monitoring: reposition cow to stand slowly—prevent nerve damage and allow feeding.
  • Repeat dose: sometimes necessary after 12–24 hours if signs recur.
  • Emergency care: ask Ask A Vet immediately for tele‑vet support with dosing, route, and timing.
---

7. Herd-Level Planning

  • Maintain records of all hypocalcemia cases
  • Group high-risk cows together pre-calving for close monitoring
  • Schedule vet/paraveterinary assistance during calving season
  • Use Ask A Vet for protocol guidance and dosing calculators
  • Review diet formulation regularly with vet/nutritionist through Ask A Vet Support
---

8. Contrast with Grass Tetany

Milk fever and grass tetany may look similar but differ biologically:

Feature Milk Fever Grass Tetany
Cause Low Ca post-calving Low Mg in lush pasture
Onset Calm, sedate, within 72h of calving Nervous, trembling, spring pasture
Treatment IV + oral Ca IV Mg & Ca, pasture removal
---

9. Cost‑Benefit of Prevention

  • Prevent production losses: unassisted recovery avoids milk yield delays.
  • Reduce labor calls: early intervention saves time and distress.
  • Avoid recurrent cases: bloodlines with predisposition may need management adjustments.
---

10. Ask A Vet: Your Metabolic Health Partner 📱

Ask A Vet offers:

  • Tele‑vet support during emergencies
  • Calcium dosing calculators & recheck reminders
  • Pre-calving herd planning & dietary recommendations
  • Protocol review and record templates
  • Post‑treatment follow‑up care
---

11. 2025 Key Take‑Home Messages

  • Milk fever affects beef too: be alert in first 72h post-calving.
  • Prevention > treatment: diet management, DCAD, and oral calcium support work best.
  • IV calcium works fast: supervised administration can restore the cow.
  • Monitor and record: identify high‑risk cows for future calvings.
  • Ask A Vet brings expertise: metabolic planning, dosing, and emergency support are just a tap away.
---

Conclusion

Milk fever in beef cows is a manageable metabolic challenge. With proper diet management, early recognition, and timely IV/oral calcium therapy, you can minimize its impact. Use Ask A Vet to build proactive calving plans and provide critical support during and after calving events. Let’s support your herd’s health and productivity through 2025 and beyond! 🐄❤️

Dog Approved
Build to Last
Easy to Clean
Vet-Designed & Tested
Adventure-ready
Quality Tested & Trusted
Dog Approved
Build to Last
Easy to Clean
Vet-Designed & Tested
Adventure-ready
Quality Tested & Trusted