Reproductive responses of Microtus montanus to plants and plant extracts in the diet.

摘要: Breeding experiments with Microtus montanus indicate that small dietary supplements of either sprouted wheat or acetone-ether extracts elicited improved reproductive performance. The improvement resulted primarily in more frequent postpartum matings and lower rates litter loss. Spinach extract, fed to 4-week-old female , stimulated an increase uterine weight number developing follicles the ovaries. Sprouted wheat, immature females, immediate onset estrus, as well adrenal weights. It is suggested hormone-like substances plants may influence reproduction natural populations .