Applying the principles of welfare and quality of production in the organic farm of the laying hens
Keywords:organic farm, laying hen, welfare, principle, production, egg quality
European Union banned with Council Directive No. 74/1999/EC use of the conventional battery cages for laying hens in European Union with effect from January 1, 2012. By this time much attention was paid to the assessment of laying hens welfare in the modified breeding system,namely from aspect of behavior and expression fyziological stress. At present are used the enriched cages, which device is defined by the Code of laying hens living conditions. Quantification of intensity and sequence of the events in different behaviour and a time regime can contribute to knowledge of time spending of the laying hens in the breeding area and to determining of prioritizing their behavior.The aim of our research was assessment an application of principles laying hens welfare in the farm, their production and egg quality. An object of investigation was ecological farm of laying hens. In the experiment were observed thehousing conditions and nutrition of laying hens in farm, egg production, egg weight at laying hens old 42 weeks and selected indicators of chemical formation of the eggs. In the farm were reared laying hens ISA Brown, which are high-productive and the most the most widely used in EU. The informations and data on farm, laying hen hall, breeding facility, breeding conditions, the behavior of the laying hens, nutrition, feeding and egg production were obtained by personal visit an organic farm and informations which the farmer records and stores. The informations about the behavior of laying hens were obtained by observing and comparing with the knowledge and data of the Slovak Government regulation on December 11, 2002, which minimum standards determine for the protection of laying hens.The informations on feed were obtained directly from an organic farm and feed company that followed by accordance the minimum content of nutrients and energy in accordance with the needs of the laying hens. Egg production was monitored on the base of collecting eggs two and several times a day, which was recorded daily on an organic farm. Chemical analyzes of samples of eggs were conducted according to the methodology for analytical laboratories (2009). In the farm were application welfare principles. The laying hens had unlimited access to feed and water, ad libitum, free movement in the stable hall on the litter and perches. The laying hens rummaged and ashed in the free-range are of clay. In the free-range area of grassland where was a shelter, they free ranged and explorated environment. The microclimatic conditions, a construction of the perches, nests in the hall and location of the feedersand drinkers in the hall and in the free-range were solution in the accordance with the needs of improved living conditions of the laying hens. The laying hens achieved an intensity of egg-laying 84.60% in the all laying cycle. An egg weight was 62.30 g at laying hens old 42 weeks. The average dry mater contents was in the table eggs 26.21 g per 100 g of egg mass, the proteins 12.34 g per 100 g of egg mass, a fat 11.63 g per 100 g of egg mass and a cholesterol 1.27 g per 100 g of egg yolk. On the base of achivied the results, further research was recommended in the field the welfare of the laying hens intendent for the production of the table eggs.
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