Eclampsia (also known as milk fever in dogs) is one of the most serious conditions affecting dogs during early lactation, yet it is often misunderstood.
For breeders, veterinarians and pet owners, the key to reducing risk lies not in simply adding calcium, but in understanding how nutrition supports calcium balance.
What is Eclampsia in Dogs?
Eclampsia is caused by low blood calcium levels (hypocalcaemia), most commonly occurring in the first 2–4 weeks after whelping.
During this time, the bitch is:
- Producing milk at peak levels
- Supporting rapid puppy growth
- Under significant metabolic stress
If her body cannot maintain calcium balance, symptoms can escalate quickly into a medical emergency.
What Causes Eclampsia?
A common assumption is that eclampsia is caused by not enough calcium. In reality, it is usually caused by poor calcium regulation.
When dogs receive excess calcium during pregnancy:
- Natural calcium mobilisation is reduced
- Hormonal regulation becomes less responsive
- The body cannot respond fast enough when demand spikes
Why Calcium Alone Can Increase Risk
- Disrupts calcium–phosphorus balance
- Does not support broader metabolic needs
- May suppress natural calcium regulation
Signs of Eclampsia in Dogs
Early signs include restlessness, panting, stiffness and reduced coordination.
Advanced signs include tremors, fever, seizures and collapse.
Eclampsia is a veterinary emergency — immediate treatment is critical.
Dogs Most at Risk
- Small breed dogs
- Large litters
- First-time mothers
- Dogs with inadequate nutrition
The Nutritional Solution: Balance, Not Supplementation
The most effective prevention strategy is supporting the entire nutritional system — not just calcium intake.
- Balanced calcium and phosphorus
- Adequate energy intake
- High-quality protein
- Broad-spectrum vitamins and minerals
How Di-Vetelact Supports Pregnant & Lactating Dogs
For over 50 years, Di-Vetelact has been trusted by breeders, veterinarians and wildlife carers.
- Balanced calcium and phosphorus
- High-quality Australian whey protein
- Energy-dense formulation
- 25 essential vitamins and minerals
- Low lactose, highly digestible
When Should You Use Nutritional Support?
- Final 2–3 weeks of pregnancy
- Peak lactation (first 3–4 weeks)
- Reduced appetite
- Large litters
Practical Prevention Tips
- Feed a complete and balanced diet
- Avoid calcium-only supplements unless prescribed
- Monitor intake closely
- Support with balanced nutrition
- Watch closely post-whelping
FAQs
Can calcium prevent eclampsia in dogs?
No — calcium alone can increase the risk if given during pregnancy.
When does eclampsia occur?
Most commonly within the first 2–4 weeks after whelping.
Can diet help prevent eclampsia?
Yes — a balanced diet that meets the high demands of pregnancy and lactation is key.
References
1. Veterinary Information Network – Eclampsia in Dogs
2. MSD Veterinary Manual – Calcium Disorders
3. VCA Animal Hospitals – Eclampsia in Dogs
