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Ask the Veterinarian/What will happen if a small female mates with a larger male?

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Expert: - 5/24/2010


Question
Hi my female fox terrier who weights 5kg has tied with a 9kg japenese spitz. Will the female die? Will it require a C-section? Or is this size safe?

Also they have tied twice in a span of 2 weeks. What will happen? Will more babies be born? Or is the egg now full of sperm?

Answer
Is this a planned breeding? Because if it is not, I would get this dog spayed as soon as she comes out of heat.
The size difference isn't that great unless she is very small, and then a C-section costing hundreds of dollars may be necessary. I wouldn't risk it.

Every time a dog is bred they ovulate, which means more babies. That is why and how a dog can have a mixed litter from more than one male dog.

It isn't one egg, it's many each time they are bred.

Your safest course for her and you is to get her spayed now or as soon as she is out of heat.  

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Jana Connell RVT, CVT

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PLEASE READ BEFORE SUBMITTING TO ME: I am NOT a vet and do NOT diagnose diseases. That is only for a licensed Veterinarian to do. I will give you suggestions and steer you toward calling your vet for help. You can call the vet's office and talk to the technician there or the vet at times. Don't be afraid to call them! If you have a serious issue with your pet please post it to one of the veterinarians in here- I will tell you the same thing in my answer. IF your pet is injured or in an emergency situation, CALL YOUR VET- Do not wait and post in here. Just call the vet's office and get them in to see the vet right away. Critical treatment time is lost if you seek answers here when you should have your precious pet at the vets!! Don't sit at home waiting for an answer when your pet is critically ill or injured!! I can answer most questions about small animal and wildlife care as well as small animal nutrition. I can also answer questions about all phases of dental care for small animals. I DO NOT answer questions about birds (unless it is wildlife or songbirds) or HAMSTERS/GERBILS/CHINS/GUINEA PIGS/REPTILES/FROGS/RABBITS/PET BIRDS OF ANY KIND so please submit these questions to the appropriate sections. I, as well as other experts in here, do NOT do homework questions- that is for YOU to do! Please respect these rules for all of us. Thanks!

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I have over 35 years experience in the field of veterinary medicine. I specialized in small animals and did wildlife rehab for over 25 years, mostly raptors, squirrels and opossums. I am a Small Animal Nutritional Consultant with 6 certificates from Hills Pet Foods, CNM and Purina. I also specialized in Small Animal Dentistry which is a field I truly love.

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Licensed with California and Oregon, RVT and CVT. Certified Veterinary Dental Technician Have over 500 logged hours of Continuing Education Credits(that means I keep up to date!).

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