Fertilization and early development of Dorset Horn sheep in the spring and summer.
D000818:Animals; D004622:Embryo, Mammalian / Q000033:anatomy & histology*; D004971:Estrus; D005260:Female; D005306:Fertilization; D010060:Ovulation; D010784:Photomicrography; D011247:Pregnancy; D012621:Seasons; D012756:Sheep