Gene expression signatures mediate phosphorus source effects on egg production and bone strength in late‐lay hens

Abstract: BACKGROUNDThis study explores how varying dietary phosphorus levels, particularly through dicalcium phosphate (DCP) and tricalcium phosphate (TCP), influence egg production performance and bone quality in aging laying hens, along with tibia bone gene expression. A total of 576 laying hens were randomly assigned to a 2 × 4 factorial design (two phosphorus sources × four levels), with six replicates per treatment (12 hens each). Hens were housed under controlled environmental conditions. The study employed two‐w… Show more