|Barked: Thu Dec 27, '07 5:41pm PST |
|Personally, I think the easiest solution to your problem is to have her spayed before she comes into heat and gets pregnant. Not only does it have tremendous benefits to her long term health (i.e. mammary cancer, ovarian cancer and the possiblity for pyometra, an infection of the uterus which can also be deadly) but will literally take any worry you have about the situation away and will make her a happier and healthier dog long-term. Not to mention, not add to pet overpopulation as we already know it.
If that's not an option for you, I know a lot of Bullmastiff owners that board their males while their females are in heat to avoid any "oops" situations. (Males will literally take down doors or hurt themselves in their enclosure to get to a female in heat and makes them pretty unbearable to live with!) It isn't "mean" or "harsh" or "inhumane" like some people think. It is responsible.
No matter what, keep them apart (I mean apart, no contact or she will get pregnant. Not even in the same room together with supervision, outside to go potty real quick, ect.) for a good solid 4-6 weeks after she comes into heat. She is way too young to be having puppies. (That's like an 8 year old girl having a baby!)
He will breed her if given 1/2 a chance!
As for when they come in heat, every dog is an individual. Some can come in as early as 5 months, some it takes a year. We spayed Grace a day after she turned 6 months old and her teets were beginning to swell a little bit but during her spay I could tell that she had not yet began to have the first (internal) signs of coming into estrus. On the flip side, a breeder friend of mine had a female that didn't have her first heat until she was 11 months old. (And another breeder I knew had a female open-pyo at that same age on her 2nd heat!)
Edited by author Thu Dec 27, '07 5:55pm PST