Effect of agaricus blazei in the diet of broiler chickens on immunity, serum parameters and antioxidant activity
DOI:
https://doi.org/10.5433/1679-0359.2016v37n4p2235Keywords:
Cholesterol, Free radical, Immunoglobulins, Leukocytes, Mushroom.Abstract
The effect of adding Agaricus blazei to the diet of broilers on immunity, serum parameters, and antioxidant activity was evaluated. A total of 840 1-day-old chicks were used, distributed among five levels of a completely randomized design (0.0, 0.05, 0.10, 0.15, and 0.20% A. blazei), with six replications and 28 birds per experimental unit. The weights of the thymus, spleen and cloacal bursa were not influenced (P > 0.05). Leukocytes, macrophages and nitric oxide were unaffected (P > 0.05), but at each supplementation level compared with the control, differences appeared in the percentages of eosinophils and macrophages (P < 0.05) at inclusion levels of 0.10, 0.15 and 0.20%. At 28 days, the antibody titer against Newcastle disease showed a quadratic response (P < 0.05) with supplementation, and from the estimated level of 0.08% the production of antibodies was stimulated; however, the same behavior was not observed (P > 0.05) at 42 days. Hypocholesterolemic effect was demonstrated (P < 0.05), but the serum triglyceride concentration was not affected (P > 0.05). The antioxidant activity of mushroom showed a positive linear effect (P < 0.05) on DPPH capture on day zero of meat cooling. The inclusion of A. blazei in the diet of broilers provided an immunostimulatory activity and hypocholesterolemic effect. Residual compounds with antioxidant activity were present in the meat, which may promote tissue protection of the animal in vivo, making possible the use of A. blazei as a natural additive.Downloads
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.
This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.
The opinions expressed by the authors of the articles are their sole responsibility.
The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.
