"Reproductive traits of hens" . "Klecker, Dalibor" . "Zeman, Ladislav" . . . "Reproductive traits of hens"@en . "Reproductive traits of hens"@en . "Poultry require trace mineral supplementation. However, there are vast differences between the bioavailability of organic and inorganic trace minerals. In one study, proteinated manganese and zinc improved egg shell weight, thickness and strength in older hens. In another study with a flock of broiler breeders, the proteinated minerals improved hatchability. Hatchability decreased when the proteinated trace minerals were removed from the feed." . "Bologna, Italy" . . "Lichovn\u00EDkov\u00E1, Martina" . . . "43210" . "Poultry require trace mineral supplementation. However, there are vast differences between the bioavailability of organic and inorganic trace minerals. In one study, proteinated manganese and zinc improved egg shell weight, thickness and strength in older hens. In another study with a flock of broiler breeders, the proteinated minerals improved hatchability. Hatchability decreased when the proteinated trace minerals were removed from the feed."@en . "5"^^ . "Zeman, Ladislav" . "Klecker, Dalibor" . . "752720" . "reproductive traits; hens"@en . "RIV/62156489:43210/99:23200039!RIV/2000/MSM/432100" . "Proceedings of VIII European Symposium on the Quality of Eggs and Egg Products" . . "193" . . "[81C4B7477D42]" . . "3"^^ . "World\u00B4s Poultry Science Association" . "Lichovn\u00EDkov\u00E1, Martina" . . . . "RIV/62156489:43210/99:23200039" . . . . "Reproductive traits of hens" . "3"^^ . "P(EP7125), Z(MSM 432100001)" .