Exigência de lisina para aves de reposição de 0 a 6 semanas de idade

摘要: The objective of this work was to estimate the requirement lysine from 13 20 weeks and evaluate posterior effect on performance two egg-type strains. Three hundred egg-white pullets age three egg-brown were allotted a randomised block design with five treatments four replicates. A basal diet 14.0% crude protein 2900 kcal metabolizable energy/kg supplemented L-lysine HCl obtain 0.39, 0.42, 0.45, 0.48, 0.51% total in diet. During laying period, all hens received same 16.5 CP, 2822 ME/kg, 3.81% Ca+2 0.755% lysine. estimates based weight gain 0.48% or daily intake 354 mg for white-egg, 0.49% 365 brown-egg. Egg production mass egg dozen conversions strains quadraticly affected. white-egg affected by quadratic manner. final growing phase, brown-egg showed better than pullets. lower feed conversion