Siamese cats will enter estrus when they grow up to 7-10 months old under healthy conditions. They can be bred and pregnant when they are fully developed at 12 months old. The pregnancy cycle lasts for about 63-65 days before giving birth to kittens.

Aspects to note when mating Siamese cats:

1. Under normal circumstances, cats reach sexual maturity when they are 7-10 months old, and can be bred at 12 months old. . After a female cat is in estrus, she can mate with two male cats back and forth and be fertilized repeatedly. Cats don't want people to watch them mating, and they don't like light. The best mating areas are dark and quiet. In order to increase the fertilization rate and the number of litters, a male cat can be mated first. After 24 hours, remate with another male cat. This can increase the litter size from 3-5 to 6-8. The pregnancy period of female cats is 63-65 days, and the lactation period is 50-55 days. In order to improve the efficiency of raising cats, the mating time can be artificially arranged. If you want to breed two babies a year, the mating time should be in March-April and September-October; if you want to breed three babies, you can arrange it in March, July and November. Try to avoid giving birth during the hot summer months to increase the survival rate of kittens.

2. Do not breed Siamese cats when they are in heat for the first time. A cat that has just reached sexual maturity does not mean that the cat's bones, muscles and certain organs have not yet reached full maturity. Pregnancy through breeding will affect the growth and development of the female cat, resulting in smaller individuals, premature aging, and short lifespan. The offspring will be stunted, thin, have a low survival rate, or be diseased, and the breed will degenerate. Avoid injury to the female cat and the risk of miscarriage or stillbirth.

3. The size of the breeding cat should not be too large. The size and weight of male and female cats should not be too different. If the male cat is too big and the female cat is too small (for example, the male cat weighs more than twice as much as the female cat), the fetus may be too large, causing dystocia. Before breeding, female cats must be in good health and weigh at least six pounds. Male and female cats that have been weak and sick since childhood are not suitable for breeding. The two cats need to be familiar enough before breeding. If the male and female cats have never met, let them get familiar with each other before mating. If male and female cats don't like each other after meeting, don't put them together reluctantly, as a "war" will break out. When breeding purebred cats, you must choose purebred cats of the same species, so that the offspring will have pure bloodlines.