Professional paper
https://doi.org/10.31727/m.21.1.1
The quality of hens eggs from conventional and alternative production systems
Ana Marija Keri
; Fakultet agrobiotehničkih znanosti, Sveučilište u Osijeku, Hrvatska
Zlata Kralik
orcid.org/0000-0001-9056-9564
; Fakultet agrobiotehničkih znanosti, Sveučilište u Osijeku, Hrvatska
Abstract
The aim of this paper was to compare egg quality from cage and alternative production systems. A comparison of the quality of eggs from three production systems was made: conventional (enriched cages) system and two alternative production systems (aviaries and floor-breeding on deep litter). The experiment was conducted on hybrid line Isa Brown hens which were in the 69th week of production. The hens were fed with commercial feed mixture. Eggs were sampled by random selection for analysis of quality and freshness (egg weight and weight of basic parts in egg, shape index, strength and thickness of shell, albumen height, Haugh units, yolk color, pH of albumen and pH of egg yolk). The quality of eggs was determined on a total of 74 eggs, out of which 27 eggs were from deep litter (DS), 25 eggs from hens kept in aviaries (VO) and 22 eggs from hens kept in enriched cages (OK). Analysis of the results found that production systems do not affect (P>0.05) the shape index, yolk weight and albumen height, while there is a significant influence on weight of eggs, albumen and shell, shell strength ant thickness, yolk color, Haugh units, pH of albumen and yolk, and share of basic parts in eggs (P<0.05).
Keywords
enriched cages; alternative systems; hens; eggs; quality
Hrčak ID:
217669
URI
Publication date:
5.3.2019.
spanish italian german croatian
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