TY - RPRT TI - Using light to control activity in broiler chickens. AU - H H Kristensen AU - J M Aerts AU - T LeRoy AU - D Berckmans AU - C M Wathes PY - 2004 DO - 10.1080/00071660410001698128 UR - https://pubmed.ncbi.nlm.nih.gov/15222354/ ID - 15222354 ER -