Effects of far infrared ray illumination on the performance, blood biochemistry, and faecal microflora of laying hens at different production stages
This study investigated the effect of far-infrared ray (FIR) illumination on performance, blood biochemistry, and faecal microflora of laying hens at different production stages. A total of 360 Hy-line brown laying hens were randomly allocated in a 2 × 2…