Modelling nitrogen-corrected apparent metabolisable energy requirement for egg production of 3 BW types of Yellow Broiler breeder hens during the egg-laying period
animal(2022)
摘要
•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.
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关键词
Factorial approach,Maintenance,Gompertz,Body weight,Validation
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