Curea, C.D.Radu Rusu, Răzvan-MihailRațu, Roxana-NicoletaUsturoi, AlexandruUsturoi, Marius-Giorgi2026-06-152026-06-1520222821 - 6644https://repository.iuls.ro/handle/20.500.12811/6643The research aimed at studying the productive response of the chicken broiler to European welfare standards and was carried out on a herd of 61.880 Ross-308 chickens divided into three batches of experience differentiated by the density applied to the popular: group Lm (19 heads/m2 minimum welfare conditions); Lexp-1 lot (17 heads/m2 - average welfare conditions); Lexp-2 lot (16 heads/m2- superior welfare conditions). The data obtained showed that puppies benefiting from higher welfare conditions (Lexp-2 group) had the highest body weight at slaughter (2.69% higher than those in the Lexp-1 group and 3,97% compared to those in the Lm group), the most convenient average daily consumption of compound feeds (5.77% lower than the chickens in the Lexp-1 group and 14.84% compared to the chickens in the Lm group) and feed conversion (8.77% lower than the Lexp-1 batch and 19.67% lower than the Lm batch), as well as the lowest mortality rate (0.19% lower than the Lexp-1 batch) and by 0.40% compared to Lm). The study concluded that the use of a population density of 16 head/m2, corresponding to higher welfare conditions under measure 14, allows the achievement of superior product performance, materialized in a better growth rate, a lower mortality rate, and lower mortality rate feed consumption combined.enCC BY-NC-SA 4.0https://creativecommons.org/licenses/by-nc-sa/4.0/well-beingdensitychicken broilergrowthperformanceArticle