won't come In heat

I have a almost 4 year old bulldog she has been tested and approved the only thing kept her away from the box is she lost all hardware in classmates due to roughness. She has not come in heat since she went out 2 years ago when I got her. Was going to hit her with the shot but I wanted to know If there were any home remedies you guys knew through trial aND error and not he said she said. Thanks in advance
GuitarSlim

 

the first part of your question is stupid so i cant help you with that...
a million questions yet one tested and true remedy,,, peanut butter...
...or...
http://www.thomaslabs.com/product/breed-heat/dog-breeding
good product and I am sure there are better,,,
Garner has some miracle and there is a older lady that is a top notch breeding expert in texas whom also has another product available...

one bitch in heat might also trigger your bitches heat cycles...

if the bitch has not come into heat at least twice a year and no more than four times,,,
something is off and you might have her checked out before breeding her...

there might be a problem and when she does come in heat and if you breed her and it takes,,,
the problem might manifest itself more with the stress of the pregnancy and whelping the pups...

an ounce of prevention is worth a pound of cure,,,
better safe than sorry...

 

I recently read (thanks to this thread) that lack of sunlight keeps bitches from coming in...
The same can be said for lack of nutrients/vitamins/minerals...