Laying, egg quality and blood profile of native hens

The objective of this study was to assess egg quality parameters for the whole laying period depending on oviposition time and breed Czech Slovak native breeds hens. Besides, determine differences between selected in pattern, related place. Furthermore, biochemical blood were measured at end study. A total 60 pullets age 20 weeks divided according breed. Each treatment consisted 3 replications 10 eggs collected every day, 6:00, 10:00 14:00 amount recorded each interval (from 5:59, from 6:00 9:59 13:59). Moreover, place (inside outside nest) particular recorded. In addition, samples collected. Significantly heavier laid 13:59 than h (52.44 vs. 51.39 g, resp.). Haugh units highest golden spotted hens that Oravka h. lower content yolk cholesterol found compared (10.64 11.22 mg/g, had significantly higher level glucose serum (16.47 14.03 mmol/l, hens, gene reserve Republic, are not yet sufficiently described scientific literature, which highlights importance