title: Lifetime reproductive performance of Mongolian gerbils (Meriones unguiculatus) with 1 or 2 ovaries.
abstract: The lifetime reproductive performance of Mongolian gerbils from which an ovary had been removed 7 days before pairing at 100 days of age was only slightly inferior to that of normal females. A general decline in fertility was evident only in the oldest females. The mean number of litters, young born and age at last parturition were 7.6 +/- 3.8, 37 +/- 20 and 462 +/- 196 days (2 ovaries) compared with 6.9 +/- 3.5, 30 +/- 16 and 417 +/- 142 days (1 ovary) respectively.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000033:anatomy & histology; D005260:Female; D005313:Fetal Death / Q000453:epidemiology / Q000662:veterinary; D005849:Gerbillinae / Q000033:anatomy & histology / Q000502:physiology*; D008098:Litter Size; D010048:Ovarian Cysts / Q000453:epidemiology / Q000662:veterinary; D010053:Ovary / Q000033:anatomy & histology / Q000502:physiology*; D011247:Pregnancy; D012098:Reproduction; D012376:Rodent Diseases / Q000453:epidemiology; D013997:Time Factors; D014599:Uterus / Q000033:anatomy & histology