title: Ageing changes in the Siamese fighting fish, Betta splendens. II. The ovary.
mesh_terms: D000375:Aging; D000818:Animals; D005260:Female; D005399:Fishes / Q000502:physiology*; D010053:Ovary / Q000033:anatomy & histology / Q000166:cytology / Q000473:pathology / Q000502:physiology*; D010063:Ovum / Q000166:cytology / Q000502:physiology; D012098:Reproduction