Saint Bernard, also known as Saint Bernard, is native to Denmark and has a long history in Switzerland. However, in the mid-19th century, the number became less and less and almost reached the point of extinction. Today's Saint Bernard dogs are mostly hybrid breeds. It is a truly giant working dog, weighing up to 100 kilograms and standing up to 1 meter tall.

Female St. Bernard dogs in estrus should be carefully guarded to prevent them from being secretly bred with unselected male dogs, which will affect the quality of the offspring. Owners can put menstrual pants on the dog when the female dog is in estrus, which can prevent the dog from having promiscuous sex when going out and causing unexpected pregnancy; male dogs are not allowed to go out to look for female dogs in estrus, otherwise they will easily be infected with diseases or compete for mates. And was bitten by other male dogs.

Breeding should be carried out in a quiet and clean place. Except for the dog owner, other people should not be allowed to watch or make noise. It is best to choose some familiar environments. Dogs will be nervous in unfamiliar environments, or let the dogs familiarize themselves with some breeding venues before mating.

Do not drink water or engage in strenuous exercise immediately after breeding. Allow the male and female dogs to return to the kennel for a brief rest. Because dogs consume a lot of energy during the breeding process and need to rest.

Male dogs should not mate frequently to avoid affecting their health and shortening their breeding life. Adult male dogs mate once a day and should take a day off every 3-4 days. Occasionally, they mate twice in one day, with an interval of more than 6 hours, and must rest the next day. The frequency of breeding between young male dogs and older male dogs should be reduced. When the number of breedings is increased as a last resort, nutrition should be strengthened to compensate. Male dogs over 12 years old should generally not be bred.

Although female St. Bernard dogs can reproduce twice a year, too many births will affect the physical constitution of both the female and the puppies. Depending on the age and health of the female St. Bernard dog, it can always be understood that it is more appropriate to breed three litters in two years or one litter in one year. Female St. Bernard dogs over 9 years old are generally not suitable for breeding.

The date when the female St. Bernard dog starts to be in estrus, the duration of each estrus stage, and the date of mating should be carefully recorded for future reference.

The most important thing is that before breeding a St. Bernard dog, the owner must understand the medical history of the male St. Bernard dog and the female St. Bernard dog and whether there are any personality and genetic shortcomings, whether there is a genetic or recessive medical history, and if so, then Not suitable for breeding offspring.