TITLE:
Effect of Supplemental Oregano Essential Oils in Diets on Production Performance and Relatively Intestinal Parameters of Laying Hens
AUTHORS:
Xianjing He, Dandan Hao, Chunhai Liu, Xu Zhang, Dandan Xu, Xiaonan Xu, Jianfa Wang, Rui Wu
KEYWORDS:
Laying Hens, Oregano Essential Oils, Intestinal Morphology, Intestinal Function
JOURNAL NAME:
American Journal of Molecular Biology,
Vol.7 No.1,
January
22,
2017
ABSTRACT: This study was designed to investigate the effects of dietary oregano essential oils on 150 30-week-old Hy-Line Layers’ productive performance, egg quality characteristics, cecal microbiota, digestive enzyme activities, mucosa structure of the duodenum and jejunum and glucose and small peptides transporters expression in the duodenum and jejunum. All hens were allocated into one of five different groups: negative control (NC; basal diet only), antibiotics control (CS; basal diet plus 100 mg/kg of 10% colistin sulfate) and treatments I, II, and III (basal diet supplemented with 50, 100 and 150 mg/kg oregano essential oils, respectively). The results showed that the laying rate, average egg weight, feed conversion ratio and the activities of amylase and trypsin were significantly improved by a diet supplemented with 100 mg/kg oregano essential oils (P 0.05), significantly increased duodenum villus-height-to-crypt-depth ratios (P 0.05).