FLHSThis research project aimed to investigate the variability among farms and flocks, for flock growth rates and uniformity, and to establish benchmarks of industry performance. Some laboratory modelling was undertaken on important issues to clarify causal relationships that can then be compared to data obtained from the cross sectional and experimental farm studies. The project showed that high peak production and good persistency of production can be achieved in flocks with an average body weight of 1.8-1.85 kg at 30-40 weeks of age.

Keywords: body weight, egg production, egg quality, flock uniformity, hen age, layer production systems, laying hens, persistency of production, production performance

G. Parkinson, J.R Roberts and R. Horn, AECL, University of New England, University of Adelaide, 2011-2015

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