Nutritional value variability of different poultry species meat in the organic production system. The aim of the present study was to determine the real nutritional composition for selected quality attributes of breast muscles of different organically-farmed bird species.The study covered four species of poultry – the Broad Breasted White turkey (group T), broiler chickens (group C), Muscovy ducks (Group D), and Zatorska geese (Group G). The animals came from an organic farm in Sukowska Wola (Poland). The number of birds raised on the farm was 80 per each species of poultry. The birds were raised in accordance with the organic farming standard for Poland (Council Regulation (EC) No 834/2007). During the course of the present experiment, the genotype was found to have a significant(P≤0.01; P≤0.05) effect on the dressing percentage and the muscle and giblet content of the carcasses, which was in agreement with findings of other researches. The muscle and giblet contents served as reference values. The average body weight before slaughter was, by species: turkeys (T-11.69kg), chickens (C-2.45kg), ducks (D-2.60kg), and geese (G-6.85kg).The bird species kept in the ecological farm have largely influenced the quality of the pectoral muscle of the poultry. It can be seen that the turkey and chick muscles contained slightly more protein, while less collagen, compared to the group of ducks and geese.
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