Abstract

This study evaluates the impacts of the produced nano selenium (SeNPs) products using lactic acid bacteria (LAB) as an alternative to the imported commercial organic selenium (Sel-Plex) as a source of Se dietary supplement on growth efficiency, carcass traits, blood parameters and economic efficiency in mixed‐sex Cobb500 broiler. A total of 480 one‐day‐old mixed‐sex Cobb500 broiler grown over a 35‐days period were allocated into three treatments with four replicates (n = 40). Chicks in the control group were fed commercial diets. The chicks of the second and third groups control diets supplemented with 0.3 mg/kg of either nano selenium (SeNPs) product or commercial organic selenium (Sel-Plex). Chicks fed a diet containing nano selenium diet (SeNPs) recorded significantly the highest final body weight, while those fed control diet recorded significantly the lowest final body weight (2132.2 vs. 1996.1 g, p < 0.05). Chicks fed with diet of SeNPs showed the highest significantly breast muscle percentage, whereas there were no major variations between those fed the control and the Sel-Plex diets. Plasma total protein, albumin, globulin, A/G ratio and total lipids were not significant differences due to dietary selenium source. There were no substantial effects on all hematological parameters by nano or organic selenium in compared to control diet. In conclusion, the results confirmed that feeding broiler chicks on SeNPs form with the 0.3 Se mg/kg of feed enhanced growth performance and had no adverse effect on carcass markers and blood parameters.

Key words: broilers; nano selenium; growth performance; carcass traits; blood parameters