title: Conjoined twins and opocephaly in guinea-pigs: 4 cases of congenital malformation.
abstract: A case of opocephaly in inbred guinea-pig strain 2/N and another in strain 13/N, a conjoined twin and an opocephaly concurrent with conjoined twins in the Dunkin-Hartley/FD strain are described. The incidence of congenital malformations in the inbred strain 2/N and strain 13/N was 0-0013 and 0-0073% respectively. The incidence in the random-bred Dunkin-Hartley/FD strain was 0-0007%.
mesh_terms: D009008:Abnormalities, Severe Teratoid / Q000662:veterinary*; D000818:Animals; D005260:Female; D006168:Guinea Pigs; D007178:Inbreeding; D008297:Male; D012376:Rodent Diseases / Q000151:congenital*; D014428:Twins, Conjoined / Q000662:veterinary*