PROGESTERONE LEVELS AS A KEY DETERMINANT OF FERTILITY AND LITTER SIZE IN FEMALE DOGS

The progesterone level plays a crucial role in the reproduction process of female dogs, directly affecting their fertility rate and litter size. When progesterone levels are at their optimal state, the fertility rate of female dogs can exceed 85%, thereby increasing the success rate of reproduction and litter size.

For example, when the progesterone level of a female dog reaches 10-30ng/ml, this is typically the best time for breeding. Within this range, the female dog’s fertility rate is relatively high, and the breeding success rate can be greater than 80%. However, if progesterone levels are too high or too low, it may lead to failed fertilization or a decrease in litter size.

Additionally, progesterone levels can help us determine whether a female dog is in the estrus stage. During the early stages of estrus, progesterone levels begin to rise and reach a peak after ovulation. This peak progesterone level is an important indicator for determining whether the female dog has ovulated. By monitoring changes in progesterone levels, we can determine the optimal timing for breeding, thereby increasing the female dog’s fertility rate and litter size.

In conclusion, progesterone levels are one of the critical factors that affect the reproduction success rate of female dogs. By monitoring changes in progesterone levels, we can determine the optimal timing for breeding, improve the female dog’s fertility rate and litter size, and achieve better reproduction results.