TY - RPRT TI - New monochromatic light source for laying hens. AU - I Rozenboim AU - E Zilberman AU - G Gvaryahu PY - 1998 DO - 10.1093/ps/77.11.1695 UR - https://pubmed.ncbi.nlm.nih.gov/9835345/ ID - 9835345 ER -