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J. Anim. Behav. Biometeorol.; 09(01): 1-6, Jan. 2021. ilus, tab

Artigo em Inglês | VETINDEX | ID: vti-765637

Resumo

The physiological parameters and the productive performance of free-range broilers submitted to installations with different materials of tile composition were evaluated. 320 male broilers of the Vermelho Pesadão lineage were used, with an initial age of 35 days, distributed among the following treatments: 1) Fiber cement tile painted white on the outside; 2) Cardboard tile coated with double-sided canvas - black for the interior and white for the exterior; 3) Tetra Pak® box tile; 4) Tile of Tetra Pak® boxes covered with PET bottles. A completely randomized design was used, with 4 replicates per treatment and 20 broilers per experimental unit. The climatic environment was evaluated daily at 8, 10, 12, 14 and 16 hours. The productive and physiological parameters were evaluated every 7 days, the last ones being collected at 9 and 15 hours. In the afternoon, the highest values of air temperature and black globe temperature index and humidity were recorded, regardless of the materials evaluated. Fiber cement tiles and cardboard tiles coated with double-sided canvas showed the lowest values of climatic variables. There was no difference between the types of tile for the variables of productive performance and physiological parameters. It was concluded that the fiber-cement tiles painted white on the outside, and the cardboard coated with light canvas on the outside provided a better thermal environment inside the aviaries, which can be indicated for use in shelters for the creation of free-range broilers.(AU)

Biblioteca responsável: BR68.1

Localização: BR68.1