Kaufmann F, Daş G; Preisinger R, Schmutz M, König S, Gauly M (2011) '''Genetic resistance to natural helminth infections in two chicken layer lines'''. ''Vet. Parasitol''., 176, 250 – 257. | Kaufmann F, Daş G; Preisinger R, Schmutz M, König S, Gauly M (2011) '''Genetic resistance to natural helminth infections in two chicken layer lines'''. ''Vet. Parasitol''., 176, 250 – 257. |