Phytogenic Effects on Layer Production Performance and Cytoprotective Response in the Duodenum

Author:

Anagnostopoulos Evangelos C.,Brouklogiannis Ioannis P.ORCID,Griela EiriniORCID,Paraskeuas Vasileios V.ORCID,Mountzouris Konstantinos C.ORCID

Abstract

The aim of this study was to evaluate the effects of a phytogenic premix (PP) on the production performance and critical genes relevant to the detoxification (i.e., aryl hydrocarbon receptor pathway) and antioxidant (i.e., nuclear factor erythroid 2-related factor 2 pathway) response in the duodenum of laying hens. The PP was based on bioactive substances derived from ginger, lemon balm, oregano, and thyme (Anco FIT-Poultry). A total of 385 20 week old Hy-Line Brown layers were assigned to five dietary treatments with seven replicates of 11 hens each for a 12-week feeding trial. The experimental treatments included a corn–soybean meal basal diet with no PP (CON) or supplemented with PP at 500 (P500), 750 (P750), 1000 (P1000), and 1500 mg/kg diet (P1500). The overall (1–12 weeks) laying rate (p < 0.001) and egg mass (p = 0.008) were significantly increased in the P1000 group compared with the CON. At the duodenum, increasing dietary PP inclusion levels beneficially affected (p ≤ 0.05) the expression of the majority of the AhR and Nrf2 pathway genes studied. In conclusion, according to the gene expression analysis, PP inclusion resulted in a reduced requirement for detoxification and an increased antioxidant capacity, with most of the effects seen at the PP inclusion range of 750 to 1000 mg/kg diet.

Funder

Anco Animal Nutrition Competence GmbH

Publisher

MDPI AG

Subject

General Veterinary,Animal Science and Zoology

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