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Auto-lysed yeast and yeast extract effects on dry matter intake, blood cells counts, IgG titer and gene expression of IL-2 in lactating dairy cows under heat stress
Provedor de dados: 2
Autores: Adili, Sogol; Sadeghi, Ali Asghar; Chamani, Mohamad; Shawrang, Parvin; Forodi, Farhad.
The objective of this study was to assess the effects of auto-lysed yeast and yeast extract on performance and immune responses of cows in hot climate in the early lactation period. Twenty five lactating dairy cows randomly assigned to 5 groups and 5 replicates. Cows received basal diet with or without auto-lysed yeast (20 or 40 g/d/head) or yeast extract (20 or 40 g/d/head) as on top-dressed. There were no differences for daily dry matter intake, milk production milk fat and the counts of red blood cells and white blood cells among treatments (p &amp;gt; 0.05). There were significant differences among treatments for immunoglobulin G (IgG) level, lymphocyte and neutrophil percentages. Yeast extract had no effect on IgG level, but auto-lysed yeast increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Immunoglobulin G; Immune response; Interleukin-2; Lymphocyte; Neutrophil immunoglobulin G; Immune response; Interleukin-2; Lymphocyte; Neutrophil.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48425