Cholecalciferol combined with Satureja rechingeri essential oils improves growth performance and immune response of broiler chickens.

Autor: Taghizadeh M; Koohrang Nature's Gold (KNG) Company, Mashhad, Iran., Esmaeili H; Department of Agriculture, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Tehran, Iran., Vakili R; Animal Science Department, Kashmar Branch, Islamic Azad University, Kashmar, Iran.
Jazyk: angličtina
Zdroj: Veterinary medicine and science [Vet Med Sci] 2024 Sep; Vol. 10 (5), pp. e1587.
DOI: 10.1002/vms3.1587
Abstrakt: Background: Vitamin D possesses an important role in the maintenance and health of broiler chickens. Herbal essential oils (EOs) have been proposed as a suitable alternative to chemical drugs in intensive production management systems for better performance of broilers with slight side effects and admirable therapeutic properties.
Objectives: This experiment was conducted to investigate the effects of feeding cholecalciferol (VD) in combination of Satureja rechingeri EO (SREO) on growth performance, haematological indicators and immunological response of broilers.
Methods: A total of 540 1-day-old mixed-sex broiler chickens (Ross 308) were used in a completely randomized design with a 3 × 3 factorial arrangement of treatments. Experimental treatments included different concentrations of cholecalciferol (VD) (0, 2000 and 4000 IU/kg = 0, 0.05 and 0.1 mg/kg) and SREO (0, 200 and 400 mg/kg) on growth performance, haematological indicators and immunological responses of broiler chickens were investigated.
Results: The results showed that the chicken fed diet supplemented with 0.1 mg/kg VD (VD 0.1 ) in combination of 200 mg/kg SREO (SREO 200 ) increased the feed intake during the overall and first 14-day periods of the trial when compared with other dietary treatments. Interaction of VD 0.1  × SREO 200 led to more body weight gain (BWG) in the grower and finisher phases than all other feed treatment groups. The blood level of lymphocyte at day 42, heterophil at days 28 and 42 and heterophil/lymphocyte (H/L) ratio at 14 and 28 days of age were affected by VD 0.1  + SREO 200 in comparison with VD 0  + SREO 0 group. Feeding VD and/or SREO decreased triglyceride, cholesterol and low-density lipoprotein concentrations at days 28 and 42 of the study, especially in VD 0.1  + SREO 200 treatment. Feeding VD 0.1  + SREO 200 also resulted in higher serum status of immunoglobulin M, lysozymes and phagocytic percentage among all treatments.
Conclusion: Considering the outcomes, it is suggested that the combination of suitable concentration of VD and EO of the plant had favourable effects on the immune system and performance criteria of broiler chickens.
(© 2024 The Author(s). Veterinary Medicine and Science published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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