"The relationship between eggshell strenght and plasma oestradiol, cholesterol, calcium and phosphorus levels in the laying hens was observed."@en . "5"^^ . "CZ - \u010Cesk\u00E1 republika" . "RIV/62156489:43210/00:23101001" . . "[6892F4177C43]" . . "1212-1819" . . . "Relationship of plasma oestradiol-17beta and cholesterol levels to eggshell strength in laying hens" . "313" . . "Relationship of plasma oestradiol-17beta and cholesterol levels to eggshell strength in laying hens" . . "Relationship of plasma oestradiol-17beta and cholesterol levels to eggshell strength in laying hens"@en . . . . "45" . "hens; oestradiol; cholesterol; calcium; eggshell quality"@en . . . "RIV/62156489:43210/00:23101001!RIV/2001/MSM/432101/N" . . "3"^^ . "Z(MSM 432100001)" . "3"^^ . . "\u0158ez\u00E1\u010D, Petr" . "\u0158ez\u00E1\u010D, Petr" . . "725060" . "Czech Journal of Animal Science" . "43210" . "Relationship of plasma oestradiol-17beta and cholesterol levels to eggshell strength in laying hens"@en . "7" . "The relationship between eggshell strenght and plasma oestradiol, cholesterol, calcium and phosphorus levels in the laying hens was observed." . . .