Métodos de debicagem em poedeiras comerciais

Detalhes bibliográficos
Ano de defesa: 2014
Autor(a) principal: Santos, Tiago Antônio dos [UNESP]
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Estadual Paulista (Unesp)
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://hdl.handle.net/11449/113922
Resumo: The experiment was conducted to evaluate the performance of chicks debicadas by infrared radiation and hot blade. Therefore, we used 800 chicks in the growing period (1-34 days) in a randomized block design, factorial 2 x 3 + 2 (two intensities of beak trimming, moderate and severe, through infrared radiation with three light intensities infrared, low (42 nm), medium (46 nm) and high (52 nm) and two additional treatments of hot blade beak trimming by, and intensity of moderate and severe beak trimming) totaling eight treatments with five replicates of 20 birds / each. The characteristics were the initial weight, cumulative feed intake, weight gain, feed conversion, body weight, uniformity of weight, length and uniformity of the nozzle, feasibility and absence of cannibalism. Data were analyzed by ANOVA, to experiment in a factorial design with additional treatments. In case of significant effect (p <0.05) pairs of means were compared by the F test, and for multiple comparisons was used the Tukey test. For both treatments, the moderate pecking showed better values in feed intake and body weight, however it was observed lower feed conversion debicadas birds by hot blade. Debicadas birds through infrared radiation performed better value, with no difference in feed conversion when compared to the conventional method using pecking hot blade