* Different Milk Composition: Each mother dog's milk is specifically tailored to the needs of her own puppies. The composition (fat, protein, etc.) will vary depending on the breed, size, and age of the puppies. A different dog's milk won't provide the necessary nutrients.
* Health Risks: Nursing a puppy that isn't her own can be harmful to the lactating dog. It can lead to infections, mammary gland problems, and even rejection of her own pups.
* Stress and Aggression: The lactating dog may feel stressed or even aggressive towards the puppies that aren't her own, leading to potential harm.
What can you do if a dog has lost her puppies?
* Contact a veterinarian: A vet can help determine if the puppies are healthy and offer advice on what to do.
* Seek out a professional dog sitter or foster: Many experienced individuals can care for orphaned puppies and provide them with the necessary care and nutrition.
* Hand-feed the puppies: If other options are unavailable, you can hand-feed the puppies with specialized puppy formula, but this requires significant commitment and time.
It's important to remember that while the instinct to help is admirable, it's best to seek professional advice and avoid situations that could potentially harm the dogs involved.