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Improving eggshell quality by replacement of pulverised limestone by granular limestone in the hen diet / Poboljšanje kvaliteta ljuske jaja zamenom sitno mlevenog krečnjaka sa mermerom krupnijih čestica u obrocima za nosilje
(Faculty of Veterinary Medicine, Belgrade, 2003)
Eggshell quality was studied in a total of 108 Hissex hens from 58 to 62 weeks of age. All hens received a basal diet of the same composition. The differences between the three equal groups were in the replacement percent ...
Influence of limestone particle size in diets for hens and oviposition time on eggshell quality / Uticaj veličine čestica mermera u hrani nosilja i vremena ovipozicije na kvalitet ljuske jaja
(Faculty of Veterinary Medicine, Belgrade, 2000)
Eggshell quality was studied in three groups of Issa Brown hens, from 73 to 78 weeks of age. Group 1 (control) received a basal diet with 3,8 % Ca and 0,35 % available P, in which pulverized limestone (particle size 0,02 ...