Dogs have been found as pets for thousands of years, so humans care about their characteristics and characteristics in order to care for them. The dog's interest is that there are hundreds of different species that have different sizes and shapes but are similar in some characteristics and characteristics. Is the method of mating and the duration of carrying dogs and the number of puppies in each birth.
The duration of the dogs and the number of puppies
When talking about the duration of the dogs, they all need about the same time, which usually ranges between 58 - 68 days depending on the health and type of dog, and the number of embryos also have a role.
As for the number of puppies in each birth, dogs are divided into two parts: large dogs and small dogs.
Traditional or large dogs can give birth to a maximum of 12 pups at a time, but these dogs usually give an average of six puppies.
The second section is a small-bodied dog, sometimes called a puppet. It can not give birth to more than four birds, and can give birth to only one puppy.
Mating dogs
Dogs can mate after the age of six months, whether male or female, and it is worth mentioning that there are types of dogs may not be able to mating before the age of the year.
For large dogs weighing more than 70 kg, you may need to reach two years before you can mate.
Dogs can mate twice a year because females have fertilized eggs only twice a year, and there are dogs that mate only once.
When a female is ready for fertilization, she marries more than one dog in order to confirm fertilization within a short period of time.
Hybridization of dogs
Many breeders breed dogs to get better dogs to suit their needs.
It is worth mentioning that all types of dogs can be hybridized as they all have the same number of genes and same genetic sequences.
Dogs can be hybridized with some wild animals, such as wolves, to bring together genetic chains from one another and possess the same number of genes.
The present-day pet dogs are believed to be the result of the gray wolf hybridization with other animals from the dog family.