title: [Expedient times for utilizing ewe lambs].
mesh_terms: D000367:Age Factors; D000818:Animals; D005260:Female; D007315:Insemination, Artificial / Q000662:veterinary*; D011247:Pregnancy; D012426:Russia; D012756:Sheep / Q000502:physiology*
vernacular_title: Ratsional'nye sroki ispol'zovaniia iarok