Effects of dietary non-phytate phosphorus on performance, egg quality, and bone traits in laying hens of different ages.

ABSTRACT: In diets for laying hens, excessive concentrations of non-phytate phosphorus (NPP) have been associated with disrupted calcium homeostasis, reduced eggshell quality, and an increased risk of osteoporosis. Thus, two experiments were conducted to evaluate the productive performance, egg quality, and bone characteristics of laying hens at different ages fed diets with reduced NPP levels. A total of 120 Lohmann Brown hens at 26 weeks of age (Experiment 1) and 96 hens at 66 weeks of age (Experiment 2) were assigned to a completely randomized design with two dietary treatments: a high NPP level (3.8 and 3.6 g/kg in Experiments 1 and 2, respectively) and a reduced NPP level (2.2 g/kg in both experiments). Experiment 1 consisted of ten replicates with six hens per experimental unit, while Experime

SUBMITTER: Pagnussatt H 

PROVIDER: S-EPMC12683143 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature