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Quality of eggs from Polish native Greenleg Partridge chicken-hens maintained in organic vs. backyard production systems

Jَzefa Krawczyk*
Department of Conservation of Animal Genetic Resources, National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland
Abstract :

The aim of the study was to evaluate the quality of eggs from 56-week-old hens of the native
Greenleg Partridge chicken breed, maintained in three production systems and differentiated by
feeding – organic (group 1), backyard (group 2) and intensive, kept indoors in a poultry house
(group 3 – control). Egg quality and eggshell traits were found to be related to the production groups. The eggs laid by hens from group 1 were characterized by the highest total weight and highest weight of yolk which had the most desirable colour. The yolks of these eggs were characterized by the lowest level of cholesterol and the lowest shell strength. with the highest level of vitamin E. In the backyard production system (group 2) eggs were characterized by the lowest total weight and yolk weight, the highest protein content of albumen, the highest vitamin A and the lowest vitamin E content of yolk as well as lower shell crushing strength compared to the control group.

Keywords :
backyard production system / chicken / egg quality / Greenleg Partridge chicken / organic production system

Date Deposited : 04 Aug 2011 13:38

Last Modified : 04 Aug 2011 13:38

Official URL:

Volume 27, Number 3, - 2009

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