Effects of Incorporating Chlorella Suspensions in Feed on Immunity of Broilers

PEI Wengang; CHANG Bingqian; YANG Minmin; WANG Haibo; QIN Shizhen; SHI Zhaoguo; LI Zhiyong

doi:10.19303/j.issn.1008-0384.2021.04.010

Volume 36 Issue 4

Apr. 2021

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Article Navigation > Fujian Journal of Agricultural Sciences > 2021 > 36(4): 445-451

PEI W P, CHANG B Q, YANG M M, et al. Effects of Incorporating Chlorella Suspensions in Feed on Immunity of Broilers [J]. Fujian Journal of Agricultural Sciences，2021，36（4）：445−451 doi: 10.19303/j.issn.1008-0384.2021.04.010

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PEI W P, CHANG B Q, YANG M M, et al. Effects of Incorporating Chlorella Suspensions in Feed on Immunity of Broilers [J]. Fujian Journal of Agricultural Sciences，2021，36（4）：445−451 doi: 10.19303/j.issn.1008-0384.2021.04.010

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Effects of Incorporating Chlorella Suspensions in Feed on Immunity of Broilers

doi: 10.19303/j.issn.1008-0384.2021.04.010

1.
College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu　730070, China
2.
Gansu Defu Biotechnology Co., Ltd., Dingxi, Gansu　744300, China

Received Date: 2020-09-02
Rev Recd Date: 2021-02-09

Available Online: 2021-04-20

Publish Date: 2021-04-30

Abstract

Abstract

Objective Effects of feeding suspensions of chlorella culture with and/or without fermentation to broilers on the immunity of the birds were studied. Method A total of 480 healthy one-day-old male Liangfeng broilers were randomly divided into 4 groups of 10 replicates with 12 birds in each replicate. The broilers were all fed for 70 d with regular forage provided by Lanzhou Zhengda Co., Ltd. The drinking water provided for the 4 groups included water for control and 3 treatments by addition of 30 mL chlorella suspension (CS), 1 mL fermented chlorella suspension (FCS), or 30 mL combination of the two suspensions (CCS). Result The treatments significantly increased the thymus index in the broilers (P＜0.05) but no significant effect on the spleen index (P＞0.05). The improvements on the spleen and thymus tissue structures varied. The treatment broilers showed a significantly increased serum IgG (P＜0.05). Compared to control, the inflammation-promoting factors, such as TNF-α, IFN-γ, IL-1β, IL-2, and IL-6 in serum of the broilers were significantly reduced by the treatments (P＜0.05). For the anti-inflammatory functions, CCS significantly increased IL-4 (P＜0.05). Whereas FCS significantly decreased IL-1β and IL-6 (P＜0.05) and significantly increased IL-4 (P＜0.05). Conclusion The addition of NCS, FCS or CCS in drinking water for the broilers promoted the development of the immunity-related organs of the birds. In addition, significant increases on serum immunoglobulin, inhibition on inflammatory cytokines secretion, and enhancement on anti-inflammatory cytokines production were also found. It appeared that by incorporating the chlorella culture material, with and/or without subsequent fermentation, in the diet feeding broilers the immunity of the flock could be significantly improved.
- Chlorella suspension,
- fermented chlorella suspension,
- broilers,
- immune organs,
- immunity indices

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References(28)

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