Modelling nitrogen-corrected apparent metabolisable energy requirement for egg production of 3 BW types of Yellow Broiler breeder hens during the egg-laying period

•Yellow broiler breeder hens were categorised as heavy, medium and light BW types.•Energy for egg production model was 10.7 KJ × egg mass (g) for heavy BW-type hens.•Energy for egg production model was 11.3 KJ × egg mass (g) for medium BW-type hens.•Energy for egg production model was 12.3 KJ × egg mass (g) for light BW-type hens.•These models serve as powerful prediction tools for hens’ production.