Towards the determination of the level of dietary phosphorus and calcium in pullets and laying hens that will optimize body mineral status, maximize performance, longevity, welfare and the industry sustainability Principal Investigator Marie-Pierre Létourneau Montminy, Laval University Year the work was done 2018-2023 Overall objective Develop a mathematical model of the fate of dietary phosphorus and calcium in pullets and laying hens to establish dietary recommendations. Specific objectives Adapt a model that was developed in broilers for the flow of dietary phosphorus and calcium to that in pullets and laying hens. Predict the effect of Ca particle size of Ca use and integrate particle size into the model, and validate the model in an animal trial. This research applies to Breeders, Layers
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