SciELO - Scientific Electronic Library Online

 
vol.51 número12Frações granulométricas da matéria orgânica do solo em consórcio de milho safrinha com capim-marandu sob fontes de nitrogênio índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Pesquisa Agropecuária Brasileira

versão impressa ISSN 0100-204Xversão On-line ISSN 1678-3921

Resumo

DIAS, Adélio Nunes et al. Strains of free-range broilers reared in semi-intensive system in a hot climate region. Pesq. agropec. bras. [online]. 2016, vol.51, n.12, pp.2010-2017. ISSN 1678-3921.  https://doi.org/10.1590/s0100-204x2016001200012.

The objective of this work was to evaluate the performance, physiological traits, and behavior of five lines of free-range broilers reared in a semi-intensive system in hot climate region. Four hundred birds, with an initial age of 35 days, were used in five treatments represented by the free-range lines: Pescoço Pelado, Vermelho Pesadão, Carijó, Master Griss, and Colorido lines. A completely randomized design with four replicates and 20 plots was used. Performance (weight gain, feed intake, and feed conversion), rectal temperature, respiratory frequency, and behavior were evaluated. There were no significant differences between the lines for performance and physiological variables. All lines showed thermal discomfort and, based on their behaviors, an adaptation trend to hot climate was noted. The Pescoço Pelado, Vermelho Pesadão, Carijó, Master Griss, and Colorido lines can be reared in semi-intensive systems in hot climate region.

Palavras-chave : ambience; alternative poultry farming; behavior; performance.

        · resumo em Português     · texto em Português     · Português ( pdf )