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Anim Biosci > Accepted Articles
https://doi.org/10.5713/ab.22.0284    [Accepted] Published online January 11, 2023.
The effect of Acacia nilotica bark extract on growth performance, carcass characteristics, immune response, and intestinal morphology in broilers as an alternative to antibiotic growth promoter
Muhammad Umer Zahid1  , Anjum Khalique1,*  , Shafqat Nawaz Qaisrani1  , Muhammad Ashraf1  , Ali Ahmad Sheikh1  , Muhammad Umar Yaqoob2 
1Department of Animal Nutrition, University of Veterinary and Animal Science, Lahore 54000, Pakistan
2College of Animal Science, Zhejiang University, Hangzhou 310058, China
Correspondence:  Anjum Khalique, Tel: +92-3009412987, Fax: +92-99211449, Email: Akhalique@uvas.edu.pk
Received: 25 July 2022   • Revised: 12 November 2022   • Accepted: 6 January 2023
Present study was designed to evaluate the efficacy of Acacia nilotica bark extract as an alternative to antibiotic growth promoters in broilers.
Six hundred, day-old broiler chicks were randomly divided into six groups (NC: without any supplementation; AB: NC+Zinc Bacitracin; PB: NC+Safmannan; ANBE1: NC+A. nilotica bark extract 0.1 %; ANBE3: NC+A. nilotica bark extract 0.3 %; ANBE5: NC+A. nilotica bark extract 0.5 %), with ten replicates per group (10 chicks/replicate) and feeding trial was lasted for 35 days.
Results showed that weight gain (1296.63 g) and FCR (1.59) of AB was better than NC, during the finisher phase. Overall FCR of AB (1.53), PB (1.54) and ANBE5 (1.54) was significantly (P<0.05) better than NC. From carcass parameters relative weight of wing and heart were highest in ANBE3 (2.5 and 1.51 %, respectively). Significantly (P<0.05) highest blood glucose level was observed in NC (264.5 mg/dl) and highest albumin concentration was found in AB (1.46 mg/dl). In addition, antibody titer levels against ND and IBD were higher in ANBE5 than NC, while higher relative weight of bursa was observed in ANBE3 than NC. The villus height to crypt depth ratio in all experimental groups was better than NC.
Acacia nilotica bark extract could be a suitable alternative to antibiotic growth promoters to support the growth in broilers.
Keywords: Acacia nilotica; Antioxidant Capacity; Bark Extract; Blood Biochemistry; Growth Performance; Intestinal Morphology

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