Data/hora: 02/06/2024 05:04:08

Provedor de dados: | 89
País: | Brazil
Título: | Effects of Light Intensity on Growth, Anti-Stress Ability and Immune Function in Yellow Feathered Broilers
Autores: | Guo,YL; Ma,SM; Du,JJ; Chen,JL.
Data: | 2018-03-01
Ano: | 2018
Palavras-chave: | Anti-stress ability; Growth; Immune function; Light intensity; Yellow feathered broilers.
Resumo: | ABSTRACT An experiment was conducted to investigate the effects of light intensity on growth, anti-stress ability, and immune function of yellow feathered broilers. A total of 480 one-day-old male Lingnan yellow feathered broilers were randomly allocated to 4 treatments based on light intensity (1, 5, 20 and 80 lx) with 8 replicates of 15 chicks each. The experiment lasted for 63 days. Compared with those under high light intensity, broilers exposed to low light intensity had higher (p&lt;0.05) total antioxidant capacity (T-AOC), glutathione peroxidase (GSH-Px), a-Naphthylacetate esterase (ANAE+), antibody titer, but lower (p&lt;0.05) malonaldehyde (MDA) levels and heterophil/lymphocyte ratio (H/L). There was a linear effect for T-AOC(p=0.002), GSH-Px(p≤0.047), MDA (p=0.003), H/L(p≤0.014), ANAE+ (p≤0.044), and antibody titer (p≤0.021) with T-AOC, GSH-Px, ANAE+, and antibody titer increased significantly as light intensity decreased, whereas MDA and H/L were decreased with the decrease in light intensity. These results suggested that broilers under low light intensity could have similar performance, better anti-stress ability, stronger immune function, and more efficient in energy usage as compared with those exposed to high light intensity environment.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100079
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/1806-9061-2017-0542
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.20 n.1 2018
Fonte: | info:eu-repo/semantics/openAccess