Avaliação de planos nutricionais sobre índices produtivos e econômicos de frangos de corte

Abstract

Nutritional plans were evaluated in order to compare the productive and economic indices of male broilers. Nine hundred one-day-old Cobb 5008 chicks were distributed, submitted to a randomized block design (3 ranges of initial weight), with 2 treatments and 18 replications, with 25 birds per experimental unit. The nutritional programs consisted of: Rostagno et al. (2017) and The Cobb Handbook (2018). Performance characteristics were evaluated in the period from 1 to 38 days of age, such as feed intake, weight gain, feed conversion, breeding viability and productive efficiency index. For the economic analysis, gross margin, average cost, gross revenue and profitability index were calculated. Performance and economic results were evaluated by analysis of variance, and, for comparison between treatment means, Tukey's mean test was used (P<0.05). In the total breeding period, the breeding viability did not show statistical difference (P>0.05). It is concluded that the nutritional plan according to the Cobb 500% manual (2018) was the one that presented the highest profitability index, obtaining better profitability in the production of broilers.