Comparative Studies On The Reproductive Systems Of Mandarin Voles And Kunming Mice

Lasiopodomys mandarinus the Loess Plateau in eastern and northern agricultural area of the main hazards rodent species living underground is the agricultural and forestry production against the more serious rodent species. Mice is an important model animal, the adult body weight for the 25.1-30.5g, adult mandarin voles weight around for the 26.1-30.5g, the two are similar, while the average mandarin voles litter size was 3.93±0.11 far below the Kunming mice 10.99±2.24,In this study, brown rats and mice used for comparison, using conventional staining methods, their reproductive system, Comparative morphological study of the organization. Kunming white through brown voles and mice studies comparing development of the reproductive system, the brown mice and Kunming mice reproductive system morphology compared with Microtus illustrates the reproductive system of Kunming white mice the differences in morphology, to understand differences between the two litter size and reproductive systems mandarin voles living in caves underground to meet the characteristics shown, for the effective prevention and treatment provide the basis for rodent mandarin voles.The results are as follow:1) mandarin voles ovarian follicles within the same period the number of 8.25+0.132个,Kunming mice was 18.12±0.36个, brown vole is far below the Kunming mice (P <0.001), which may be the main reason;2) the thickness of the outer membrane of uterine mandarin voles was significantly lower than mice, and both differences and significant (P<0.001), the muscle thickness of the mandarin vole was significantly lower than mice, and both differences and significant (P=0.008), brown vole endometrial thickness was also significantly lower than in Kunming mice (P=0.001). Kunming mice with finger-like protrusions developed compared to the uterus mandarin voles layer is very thin hair, which may be less litter size and its corresponding results;3) The thinner the tunica albuginea of mandarin voles about 12.1 um, while the mice compared to 20.5um, the difference was significant (P<0.001); brown vole seminiferous tubule diameter is smaller, only To 109.3um, and Kunming mice were close to 131.6um, significant differences between the two levels (P=0.001). In addition, mandarin voles seminiferous tubule lumen is relatively large; epididymal length of Mandarin voles was 7.01±0.76mm, the length of the epididymis mice was 7.41±0.26mm, the difference was not significant(P=0.7569); Brown Epididymis vole width of 1.85±0.08 mm, width of Kunming mouse epididymis, compared with 2.34±0.03 mm (P=0.002). Presumably male ejaculation, the number of single individuals with both a considerable difference in litter size;4) The diameter of preputial glands in mandarin voles was 4.81±0.22mm, preputial glands of KM mice was 6.01±0.27mm, the differences were significant (P=0.018). Mandarin voles clitoris gland diameter 3.12±0.32mm, the preputial glands of KM mice was 3.76±0.29mm, the difference was significant (P=0.047). The preputial glands and clitoral gland of mandarin voles may be associated with underground lifestyle.