Difference in fertility of two lines of mice selected for different body conformation.
D000818:Animals; D001835:Body Weight; D001947:Breeding; D005121:Extremities / Q000033:anatomy & histology*; D005260:Female; D005298:Fertility; D008098:Litter Size; D051379:Mice; D008815:Mice, Inbred Strains; D011247:Pregnancy; D013008:Somatotypes