Dietary supplemental synbiotic – yucca extract compound preparation modulates production performance, immune status and faecal microflora diversity in laying hens

This research was designed to assess the influence of a synbiotic – yucca extract compound preparation (MCC) on production performance, faecal microbiota and immune in laying hens. A total of 180, 27-week-old healthy Hy-Line Brown laying hens were divided into 2 treatments with 6 replicates (15 birds/per replicates), including control group (CN), and treatment group with 3.34 g MCC/kg diet (MCC). The results revealed that supplementation of MCC in diet resulted in a greater laying rate in hens. The concentrations of serum IL-2, IL-6 and TNF-α were lower than CN group, whereas the concentrations of IgG and IL-10 in serum were higher in the MCC group. Furthermore, at the genus levels, the abundance of Romboutsia, and Helicobacter was lower, however, the abundance of Lactobacillus was higher when the hens were fed MCC. Therefore, the addition of MCC positively impacted the production performance, immune and faecal microbial diversity of laying hens.