The length of the spermatogenic process is different among species. In the Sprague-Dawley rat, recruitment of committed cells from stem cells occurs every 12.9 days [1], which also represents the time necessary for a cell to ascend one level above the original cell in a spermatogenic cycle map [2].

However, another notion is important to keep in mind. Indeed, the total wave duration of spermatogenesis in rats is about 50 days (and a release in sperm after 57 days). If you needed a comparison of the duration of spermatogenesis between male rodents (e.g., rats) and humans, please see the following article from Adler I.D. published in 1996 [3].

[1]. https://academic.oup.com/endo/article/76/1/80/2701981

[2]. Article Histological and Histopathological Evaluation of The Testis

[3]. Article Current issues in mutagenesis and carcinogenesis .69. Compar...

Hoping that this complement reply will be useful,

Ludovic Dumont, Ph.D.

Mice have an effective reproductive system in the face of the great risks that they face. They reach the age of reproduction for the first time when they reach fifty days for both males and females, knowing that the females require intercourse sometimes in a time less than that ranging between 25-40 days, and give birth to approximately 40-60 per year and reproduce Throughout the year, you enter a state of condolences for a period of 4-5 days, during which time you are ready to travel 12 hours during each evening, as it usually comes at night. Vaginal discharge plays a beneficial role in mice, as it determines the period of confinement and vaccination occurs after the genital follicle is clogged in the vagina for more than 24 hours after the meeting, as the presence of sperm in the vaginal fluid is the best guarantee to confirm vaccination. Scientists also noted that hormones have an important role in the mating of mice. Females do not enter the state of estrus in the absence of males, but their cycle is regularized in the presence of males, which is a phenomenon known as Whitten effect. .