the effects of herbal plants on mucin 2 gene expression and performance in ascetic broilers

the mucus layer plays an important role as an intermediate for the protection of the gut against acidic chyme, digestive enzymes, and pathogens; in addition, it acts as a lubricant and facilitator of nutrient transportation. phytogenic compounds seem to promote intestinal mucus production. objectives: the current study was conducted to investigate the effects of low and high levels of energy and amino acids in combination with turmeric, thyme, and cinnamon on chicken performance and expression of mucin 2 gene. methods: the eight experimental groups consisted of diluted and condensed diet with and without the addition of 5g/kg of each turmeric, thyme, and cinnamon to the diet. chicken performance was recorded. expression analysis of the mucin 2 gene was carried out by quantitative rt-pcr. results: body weight gain, feed intake, fcr, and mortality rate were not affected by diets (p>0.05). a significant (p