Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/57900
Título: Programas de luz sobre o desempenho e parâmetros seminais de galos semi-pesados
Título(s) alternativo(s): Lightning programs on the performance and seminal parameters of semi-heavy roosters
Palavras-chave: Animais - Efeitos da luz
Luz contínua
Luz intermitente
Luz natural
Sêmen - Qualidade
Animals - Effect of light
Continuous light
Intermittent light
Natural light
Semen - Quality
Data do documento: 2011
Editor: Universidade Federal de Santa Maria
Citação: MACIEL, M. P. et al. Programas de luz sobre o desempenho e parâmetros seminais de galos semi-pesados. Ciência Rural, Santa Maria, v. 41, n. 9, p. 1617-1621, set. 2011.
Resumo: This study aimed to evaluate the influence of different lighting programs on the performance and semen parameters of semi-heavy cock strain. Twenty four roosters, aging 19 weeks, of the Lohman Brown strain were used, and submitted to three treatments: 1) continuous lightning programs 2) intermittent lightning programs and 3) increasing natural lightning programs. The animals were distributed into a completely randomized design, with 8 replicates being the experimental unit constituted of 1 animal. The experimental period lasted 140 days and the evaluated variables were: feed intake (g/chicken/day), body weight (g), semen production (ml), motility (%) and vigor (0 to 5) of the sperm, spermatic concentration (cells number x 109), total spermatic cells (NCT- volume x concentration) and spermatic morphology (head, tail and total alterations). The semi-heavy roosters submitted to continuous and intermittent lightning programs presented greater semen production and greater NCT (P<0,05). There was no significant influence (P>0.05) of the treatments on the other variables. It was concluded that the programs of continuous and intermittent light can be used for semi-heavy cocks during the breeding season, without sacrificing performance and sêmen parameters.
URI: http://repositorio.ufla.br/jspui/handle/1/57900
Aparece nas coleções:DMV - Artigos publicados em periódicos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Este item está licenciada sob uma Licença Creative Commons Creative Commons