I have a Yorkie bitch 14 nearlu 15 month old she weights 7lb and a tibetan spaniel that weighs around 9 lb there same size nearly just his head is larger she's in heat I'm not planning on mating I'm being very careful but I'm petrified he might catch her but in my heart I know he won't he's booked in to be done next wk  but dont know if i want to mate them together she jst happened to come in heat which she wasn't due untill around end March start April but that's nature. I just want advice if he did catch her is it best to go for termination bcz of head size diffrence I'm planning on having a litter with my yorkie when she's around 2 yrs old. She's had 2 heats and kept her safe through them I'm just making sure as I'd like to mate them in future but I can't find anything on breeding dogs same size but diffrent head size PLEASE DONT THROUGH NASTY COMMENTS IM JUST LOOKING FOR ADVICE THANKS IN ADVANCE

Please don't do it. So much could go wrong. Just keep them as your pets. Yorkie bitch should be bigger than the dog

if she needs a caesarean section due to large headed pups you could easily be looking at a two thousand pound vet bill and no guarantee of live puppies or even live bitch.  don't do it . and if she does get caught get her the mismate injection from the vet. 

also bear in mind males can product viable sperm for some days after castration so if she is still in season when he comes home she is still at risk

Mischelly1:

I agree with previous posts not to re medical complications etc but also shocked that a litter at 15 months is very very young.  Not one of my girls have had a litter before 2 yrs of age.  So no I wouldn't consider at all

Make that month's after castration, unless you are going to do sperm checks on your dog, you cannot accurately put a time on when infertility will occur & neither can your vet.

Bear in mind that castration does not stop a dog mating & tieing with a bitch no matter how long after castration the bitch is in season.

Also I notice that u are considering having a litter from your yorkie in the future.
I assume u will look for another yorkie and not a mix breed mating .please if u do this which many would advise against make sure u have done any health tests in your bitch
If u are just looking to have a litter to have one of hers it would be better to go back to her breeder and get a pup from them than breed your self

Did you read my (full) post eh... I said she's 14 months at the min but wouldn't mate untill she was 2 yrs old I've had a few litter over past 20 years in not silly I'm jst asking for advice

I've bred chalkies twice before I do know a lot about breeding but truthly I don't think I'd mate with another breed other than a Yorkie I've just wanted info bcz Im so afraid he could catch her I've even bought her knickers to wear and him a belly band jst extra precaution even though I don't like them. I only ask bcz my girl I had few yrs back that I lost age 11 yrs 2 yrs ago she got court from my chihuha and I separated them 2 but he climbed up the back of my large breed dog jumped over gate to get her i heard him jump so I jumped out the bed and it took me matter of 30 seconds to get in room and he was stuck so I know how quick they can be also my bitch was a real tease she used to go to him and back up to my safety gate for him. This is why I'm asking questions bcz I know what can happen in seconds but like I said she's had 2 heats prior and I've managed to stop him catching her so id never say for detonate he won't get her but I'll bloody try my hardest

Thanks for that info something I didn't know. Let's see if vets say same .

And can i ask why look for a same breed I read a lot and there is complications in any breed same breed mix breed most mix bred dogs or healthier life keeping to same breed esp in same area is chance it's related along the line believe me these not much I don't know about breeding dogs I'm not a breeder I've jst had 2 litters about 2 yrs ago and 1 litter 15 yrs ago and I read up on everything I researched a lot before I done it

Hybrid vigour applies to offspring of two different SPECIES ie horse & donkey, not two different breeds of the same species.

All dogs are the same species ie Canis familiarise.

Crossing two breeds does not improve the health of the offspring.

BTW you are a breeder if you own a bitch who has a litter. The dictionary definition of a breeder is:-a person who breeds animals or plants.

He’s booked in to be done next week then you say you’d like to mate them in the future??

If you choose to have an entire male and female, I believe it is your responsibility to keep the apart.  You are now aware she's in season so keep them in different areas of your home and walk separately. 
I have several dogs in my home - 5 are entire (2 boys and 3 bitches)  When making the decision to keep mixed sexes, I was well aware of what could happen and therefore when the girls are in season I am so conscious of keeping them apart.  It's stressful, but it can be done.  You're lucky to have small dogs!

I would keep 2 closed doors between them and crate the make too just to be sure if your worried about accidents. It the worst should happen once she is out of season you can have the anerlizin injection to prevent an accidental litter.

Cross breeding doesn't prevent problems espicaly when the two breeds share the same issues, for example you say you bred two litters of chalkies, I'm guessing this is chi x yorki. Both breeds are prone to a few same health issues so a cross of these is no less likely to suffer them than either pure breed. If we're talking two breeds who have different recessive problems then yes the first generation should be carriers at worst unless the gene is actually in the other breed but was just unknown before ( it happens), and dominant problems or shared recessive problems the odds are the same as pure breeding.

When we had our small pack, we had entire males and females - we had NO unplanned litters, so it can be done.    It had it's problems of course but we kept our bitches upstairs when in season and totally away from the rest, males and females.  Of course the boys knew if one was in season but again, it's part and parcel of having entire males and females.   We spayed our girls as soon as they were retired, to reduce the angst!   Our males were only ever castrated for medical need.

Just to add I can tell you some bitches can be as keen to mate as the boys are to oblige so I'd never resort to diapers or belly bands etc.    Too easy for them to be removed

As for castrating your male - yes, he could be viable for quite some time after the surgery.    And castrated males can, and will mate and tie too.  If you had problems with him when she was in season before, might it be a good idea, and kinder to him, to get him completely out of there while she's in season?

They are only small breeds I would keep them in seperate rooms, wirh 2 doors between them.

Take him out to toilet in front garden, as it is unfair to him to have to smell where she has been peeing.

As many males get quite vocal when a bitch is receptive, many people will keep the male where he can least be heard, and crate the bitch in a bedroom.

What is a chalkie??

chihuahua x yorkie

>> chihuahua x yorkie

Goodness me - what next?