A comparison of lutein , spray-dried Chlorella , and synthetic carotenoids effects on yolk colour , oxidative stability , and reproductive performance of laying hens

@inproceedings{Englmaierov2013ACO,
  title={A comparison of lutein , spray-dried Chlorella , and synthetic carotenoids effects on yolk colour , oxidative stability , and reproductive performance of laying hens},
  author={Michaela Englmaierov{\'a} and Milo{\vs} Skřivan and Iva Bubancova},
  year={2013}
}
ISA Brown hens were fed diets supplemented with the synthetic carotenoids Carophyll Red and Carophyll Yellow at 20 and 15 mg/kg, respectively, lutein at 250 mg/kg, and the algae Chlorella at 12.5 g/kg. The synthetic carotenoids, lutein, and Chlorella significantly increased egg weight (P < 0.001), shell weight (P < 0.001), and thickness (P = 0.017) and decreased the yolk/albumen ratio (P = 0.035) of the eggs. Lutein but not the Carophylls or Chlorella significantly increased the shell breaking… CONTINUE READING