Pregnancy in cats lasts roughly 63-65 days, and nutritional demands increase sharply during late gestation and especially during lactation. The right feeding strategy protects both the queen and the kittens.
1. Pregnancy Stages and Nutrition
1.1 Early Pregnancy (0-3 Weeks)
- No major increase in intake is usually needed yet
- A quality balanced adult diet may still be sufficient
- Maintaining ideal body condition matters
- Diet quality should remain high
1.2 Mid Pregnancy (3-6 Weeks)
- Energy demand starts to rise
- Transition toward kitten food may begin
- Portions may increase by 10-20%
- Protein quality becomes more important
1.3 Late Pregnancy (6-9 Weeks)
- Energy need may rise by 25-50%
- Abdominal space decreases
- Small frequent meals are often easier
- Kitten food becomes the practical standard
- Weeks 1-3: normal portions
- Weeks 4-5: 10-20% increase and transition
- Weeks 6-7: 25-30% increase
- Weeks 8-9: 40-50% increase, 3-4 meals daily
2. Nutrient Needs During Pregnancy
2.1 Energy
By the end of pregnancy, energy needs may approach 1.5 times maintenance.
2.2 Protein
- At least about 35% protein on a dry matter basis
- Prefer highly digestible animal protein
- Taurine remains critical for development
2.3 Fat
- At least around 18% fat
- DHA supports brain development
- Arachidonic acid is an important feline nutrient
2.4 Calcium
3. Lactation
3.1 Metabolic Load
Lactation is one of the most energy-demanding periods in the queen’s life.
- Energy need may rise 2-4 times maintenance
- Peak lactation often occurs around weeks 3-4
3.2 Calories According to Litter Size
| Litter Size | Calorie Factor |
|---|---|
| 1-2 kittens | RER × 2.0 |
| 3-4 kittens | RER × 2.5-3.0 |
| 5+ kittens | RER × 3.0-4.0 |
3.3 Feeding Strategy in Lactation
- Free access or very frequent feeding is often needed
- Kitten food is preferred for energy and protein density
- Fresh water must always be available
- Wet food may improve both calories and hydration
4. Food Selection
4.1 Why Kitten Food?
- Higher calorie density
- Higher protein
- Higher fat
- DHA and taurine support
- Balanced calcium and phosphorus
4.2 Wet + Dry Combination
- Helps increase total calorie intake
- Supports hydration
- Often improves palatability
A kitten diet combined with wet-food support is often the most practical approach during late pregnancy and lactation.
5. Special Situations
5.1 Eclampsia (Milk Fever)
Signs: restlessness, tremors, muscle spasms, fever, seizures.
5.2 Inadequate Milk Production
Increase calorie intake, confirm reliable water access, reduce stress, and seek veterinary guidance if kittens are not gaining weight adequately.
- Kittens should nurse actively
- Daily weight gain matters
- Maternal appetite must remain strong
6. Weaning
6.1 Timing
- Usually starts around 3-4 weeks
- Often completes around 6-8 weeks
6.2 Feeding the Queen
- Reduce food gradually
- Allow milk production to decline naturally
- Aim for return toward pre-pregnancy condition
7. Checklist
- High-quality kitten diet prepared
- Transition started by weeks 4-5
- Portions increased during the last third of gestation
- Lactation feeding is generous or free-choice
- Fresh water is always available
- No unsupervised calcium supplementation
- Weekly weight monitoring is in place
Conclusion
Successful feeding of pregnant and lactating queens depends on timing, energy density, hydration, and close observation. Small mistakes during this period can affect both maternal stability and kitten growth.
- Late-gestation and lactation feeding should be planned proactively
References
Key references include Case et al. (2011) and NRC (2006).