title: Genotype-environment interaction in sheep. I. Ewe productivity.
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001835:Body Weight; D002170:Canada; D002980:Climate; D003433:Crosses, Genetic; D004777:Environment; D005260:Female; D005838:Genotype; D006824:Hybridization, Genetic; D012098:Reproduction; D012756:Sheep / Q000502:physiology*; D014768:Virginia; D014886:Weaning