Düşük proteinli broyler rasyonlarına çam kabuğu ekstraktı (Pinus pinaster) ilavesinin performans, bazı kan ve antioksidan parametreler ve bağırsak histomorfolojisi üzerine etkisi

Abstract

This study was conducted to determine the effects of Pinus pinaster extract (PPE) and encapsulated Pinus pinaster extract (EPPE) supplementation in normal and low protein broiler diets on performance, some blood and antioxidant parameters, and intestinal histomorphology. In the study, for obtaining EPPE, PPE was covered with alginate. The research was carried out 41-days with 288 one-day-old male broiler chicks. Chicks were classified into two groups that have different protein levels, one of with normal, the other one with 10% low protein. Also, normal and low protein level groups were divided to one control and two trial groups. The amount of 100 mg/kg PPE was added to each of the trial group diets and the same amount EPPE was added to other trial group diets. Consequently, in comparison of PPE and EPPE groups with control, statistically significant differences were observed for body weight and body weight gain in terms of protein on 41-day results (P<0.05). For feed conversation ratio, better results were determined in PPE groups at 41 days (P<0.05). Besides that, statistically significant differences were found in breast meat TBARS values and intestinal histomorphology in PPE and EPPE groups as compared to the control groups (P<0.05). In this study, it is concluded that 100 mg/kg PPE and EPPE can be supplemented in normal and low protein broiler diets without any adverse effects and to be considered as an alternative aromatic substance for broiler rations.