Yes a litter can be fathered by more than 1 sire.
No, but they should be of the same breed and should be carefully screened before they are bred.
When a female is in heat she will accept more than one male to breed with. If there are enough eggs, the sperm from more than one male can fertilize different eggs the female has.
No. They can stay in heat for several weeks and then stop. Its important to remember that unless you breed them, or fix them they will go into heat more frequent for longer periods of time- this is biologys attempt at continueing the species.
A dog's heat cycle will last it's course whether the dog is bred or not. It is possible for a dog to be impregnated by more than one dog at the same time, resulting in mix breed puppies. So, no, it will not stop just because the dog is pregnant.
I personally think that no dog should be left out in the heat for long periods of time....
Nothing. The female must be on heat to breed puppies.
Rottweilers have two seasons (or heat cycles) a year, but you should never attempt to breed from the same dog more than once in a year, and never more than two or three times in its lifetime.
When a female is in heat she will accept more than one male to breed with. If there are enough eggs, the sperm from more than one male can fertilize different eggs the female has.
No. They can stay in heat for several weeks and then stop. Its important to remember that unless you breed them, or fix them they will go into heat more frequent for longer periods of time- this is biologys attempt at continueing the species.
you have to wait for them to come into heat If the female is in heat she will eventually come around.
training and age has more to do with dog manners than breed. And as such, dogs that are easy to train often become more well-mannered - if they are trained.
There is not a specific dog breed that is smarter than any other dog breed in the world than there is in the USA, but the smartest dog breed are poodles.
There is no such breed. Each female dog as an individual will vary during her heat. Normally you see the most blood in the beginning of the heat then it slowly stops.
A dog's heat cycle will last it's course whether the dog is bred or not. It is possible for a dog to be impregnated by more than one dog at the same time, resulting in mix breed puppies. So, no, it will not stop just because the dog is pregnant.
I personally think that no dog should be left out in the heat for long periods of time....
Nothing. The female must be on heat to breed puppies.
yes she will she will continue until she knows shes pregnant and bite the dog when she knows and he knows
It depends on the breed of dog. :3