"N\u00E1\u0161 chov" . "RIV/60460709:41210/07:21877!RIV08-MSM-41210___" . . "Zita, Luk\u00E1\u0161" . . . . "Faktory vnit\u0159n\u00ED povahy ovliv\u0148uj\u00EDc\u00ED barvu sko\u0159\u00E1pky"@cs . . . . "Faktory vnit\u0159n\u00ED povahy ovliv\u0148uj\u00EDc\u00ED barvu sko\u0159\u00E1pky" . "0027-8068" . "Faktory vnit\u0159n\u00ED povahy ovliv\u0148uj\u00EDc\u00ED barvu sko\u0159\u00E1pky"@cs . . "41210" . "Faktory vnit\u0159n\u00ED povahy ovliv\u0148uj\u00EDc\u00ED barvu sko\u0159\u00E1pky" . "colour of shell, layer, egg yield"@en . "421629" . "CZ - \u010Cesk\u00E1 republika" . "Intern factors affecting the colour of shell"@en . "Ledvinka, Zden\u011Bk" . . . "Intern factors affecting the colour of shell"@en . "8" . . "45;48" . "Z(MSM6046070901)" . . "In modern rearing systems for layers the brown and white egg breeds are cross-breeded to increase the intensity of the egg production, whereas the colour of shell of the brown egg layer and of the hybrids can be lighter. A colour of shells called ,,tinted egg shell\u201C can also appears. On the base of some experimental crossbreedings and some other studies it can be states, that the colour of shell is evoked by genes fixed on gender. The own colour of the brown-egg shell is given by pigmentes from the group porphyrins . These are produced in the uterus. The heritability of the colour of shell by the brown-egg genotypes is high. Blow et al. (1950) indicated the coefficient of heritabity for the colour of shell in the interval h2=0,31-0,91, The age has an effect on the colour of shell. The colour, messured reflectrometricly in dependece of age, was 48,8-55,4 refl. units, showes Szczerbinsk\u00E1 (1997). Selection of layers to increase the production can have a negative effect on the intensity of colouring of"@en . "[B9C57B1D2EED]" . "Klesalov\u00E1, Ludmila" . . "Hn\u011Bdovaje\u010Dn\u00ED a b\u011Blovaje\u010Dn\u00ED hybridi jsou v\u00A0sou\u010Dasn\u00E9 dob\u011B \u0161lecht\u011Bni, aby dosahovali vy\u0161\u0161\u00ED intenzity vaje\u010Dn\u00E9 produkce, zat\u00EDmco barva sko\u0159\u00E1pky hn\u011Bdovaje\u010Dn\u00FDch nosnic m\u016F\u017Ee b\u00FDt sv\u011Btlej\u0161\u00ED. Na z\u00E1klad\u011B jin\u00FDch studi\u00ED m\u016F\u017Ee b\u00FDt uvedeno, \u017Ee barva sko\u0159\u00E1pky je zp\u016Fsobena geny v\u00E1zan\u00FDmi na pohlav\u00ED. Barva sko\u0159\u00E1pky vajec hn\u011Bdovaje\u010Dn\u00FDch nosnic je d\u00E1na pigmenty ze skupiny porfyrin\u016F, kter\u00E9 jsou produkov\u00E1ny d\u011Blohou. D\u011Bdivost barvy sko\u0159\u00E1pky hn\u011Bdovaje\u010Dn\u00FDm genotypem je vysok\u00E1. Blow et al. (1950) stanovil koeficient heriability pro barvu sko\u0159\u00E1pky v\u00A0intervalu h2=0,31-0,91. V\u011Bk m\u00E1 vliv na barvu sko\u0159\u00E1pky. Szczerbinsk\u00E1 (1997) uv\u00E1d\u00ED, \u017Ee barva v\u00A0z\u00E1vislosti na v\u011Bku m\u011B\u0159en\u00E1 reflektometricky byla 48,8-55,4 refl. jednotek. Selekce nosnic na zvy\u0161ov\u00E1n\u00ED produkce m\u016F\u017Ee m\u00EDt negativn\u00ED vliv na intenzitu zbarven\u00ED sko\u0159\u00E1pky, zat\u00EDmco selekce na hmotnost vajec nem\u00E1 vliv na barvu."@cs . "67" . "3"^^ . "RIV/60460709:41210/07:21877" . . . "4"^^ . "Hn\u011Bdovaje\u010Dn\u00ED a b\u011Blovaje\u010Dn\u00ED hybridi jsou v\u00A0sou\u010Dasn\u00E9 dob\u011B \u0161lecht\u011Bni, aby dosahovali vy\u0161\u0161\u00ED intenzity vaje\u010Dn\u00E9 produkce, zat\u00EDmco barva sko\u0159\u00E1pky hn\u011Bdovaje\u010Dn\u00FDch nosnic m\u016F\u017Ee b\u00FDt sv\u011Btlej\u0161\u00ED. Na z\u00E1klad\u011B jin\u00FDch studi\u00ED m\u016F\u017Ee b\u00FDt uvedeno, \u017Ee barva sko\u0159\u00E1pky je zp\u016Fsobena geny v\u00E1zan\u00FDmi na pohlav\u00ED. Barva sko\u0159\u00E1pky vajec hn\u011Bdovaje\u010Dn\u00FDch nosnic je d\u00E1na pigmenty ze skupiny porfyrin\u016F, kter\u00E9 jsou produkov\u00E1ny d\u011Blohou. D\u011Bdivost barvy sko\u0159\u00E1pky hn\u011Bdovaje\u010Dn\u00FDm genotypem je vysok\u00E1. Blow et al. (1950) stanovil koeficient heriability pro barvu sko\u0159\u00E1pky v\u00A0intervalu h2=0,31-0,91. V\u011Bk m\u00E1 vliv na barvu sko\u0159\u00E1pky. Szczerbinsk\u00E1 (1997) uv\u00E1d\u00ED, \u017Ee barva v\u00A0z\u00E1vislosti na v\u011Bku m\u011B\u0159en\u00E1 reflektometricky byla 48,8-55,4 refl. jednotek. Selekce nosnic na zvy\u0161ov\u00E1n\u00ED produkce m\u016F\u017Ee m\u00EDt negativn\u00ED vliv na intenzitu zbarven\u00ED sko\u0159\u00E1pky, zat\u00EDmco selekce na hmotnost vajec nem\u00E1 vliv na barvu." . "Huben\u00FD, Martin" . . . "4"^^ .