. . "Effect of organic selenium, manganese and zinc on reproductive traits of laying hens and cockerels."@en . "Blankenberge" . "Z(MSM 432100001)" . "Neuveden" . "Blankenberge" . . "2"^^ . "Effect of organic selenium, manganese and zinc on reproductive traits of laying hens and cockerels." . "2001-01-01+01:00"^^ . . . "Effect of organic selenium, manganese and zinc on reproductive traits of laying hens and cockerels." . "Effect of organic selenium, manganese and zinc on reproductive traits of laying hens and cockerels."@en . "RIV/62156489:_____/01:23500025!RIV/2002/MSM/430002/N" . . "laying hens; cockerels; selenium; manganese; zinc;"@en . "72;73" . . . . . "WPSA 13th European Symposium on Poultry Nutrition and Ascites Workshop" . . "We observed the effects of organic selenium, manganese and zinc on reproductive traits of laying hens and cockerels." . . "Klecker, Dalibor" . "2"^^ . . "We observed the effects of organic selenium, manganese and zinc on reproductive traits of laying hens and cockerels."@en . "[22284C13FED4]" . "RIV/62156489:_____/01:23500025" . . "3"^^ . "0"^^ . . "0"^^ . . . . "678734" .