title: The significance of transferrin and R-O-i polymorphisms in sheep.
mesh_terms: D000818:Animals; D001789:Blood Group Antigens; D005298:Fertility; D005787:Gene Frequency; D006454:Hemoglobins; D008951:MNSs Blood-Group System; D011110:Polymorphism, Genetic; D012744:Sex Ratio; D012756:Sheep / Q000097:blood* / Q000502:physiology; D013312:Stress, Physiological / Q000097:blood; D013552:Swine / Q000097:blood; D014168:Transferrin
chemical_list: D001789:Blood Group Antigens; D006454:Hemoglobins; D008951:MNSs Blood-Group System; D014168:Transferrin