Open AccessKVALITET JAJA ORGANSKIH KOKOŠI NOSILJA U RAZLIČITIM FAZAMA PROIZVODNOG CIKLUSA
Author(s) -
Simeon Rakonjac,
Snežana Bogosavljevic-Boškovic,
Vladimir Dosković,
Miloš Lukic,
Zdneka Škrbic,
Veselin Petričević,
Milun D. Petrovic
Publication year - 2021
Publication title -
zbornik radova
Language(s) - English
Resource type - Conference proceedings
eISSN - 2584-6159
pISSN - 0350-8552
DOI - 10.46793/sbt26.245r
Subject(s) - eggshell , breaking strength , zoology , laying , body weight , biology , materials science , ecology , endocrinology , composite material , physics , astronomy
The aim of this study was to determine the eggs and eggshell quality of organic laying hens at different stages of the one-year production cycle. Based on the results of these studies, it can be concluded that the organic eggs of 24-week-old Isa Brown layers had lower weight and a higher shape index than the eggs of 48- and 72-week-old hens. On the other hand, the eggs of 24- and 48-week-old laying hens had a higher albumen height and Haugh units, and less colored yolks compared to the eggs of 72-week-old hens. In terms of eggshell quality, 24-week-old hen eggs had a higher proportion, thickness and breaking strength and less shell deformation compared to 48- and 72-week-old hen eggs.