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Asian-Australas J Anim Sci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.19.0889    [Accepted] Published online March 4, 2020.
Effects of mushroom waster medium and stalk residues on the growth performance and oxidative status in broilers
Y. C. Hsieh1  , W. C. Lin1  , W. Y. Chuang1  , M. H. Chen2  , S. C. Chang3  , Tzu-Tai Lee1,4,* 
1Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
2Taiwan Agricultural Research Institute, Council of Agriculture, Executive Yuan, Taichung City, 41362, Taiwan
3Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Pingtung, 91201, Taiwan
4The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan
Correspondence:  Tzu-Tai Lee, Tel: +886-4-22840366, Fax: +886-4-22840265, Email: ttlee@dragon.nchu.edu.tw
Received: 17 November 2019   • Revised: 29 January 2020   • Accepted: 17 November 2019
The study developed mushroom stalk residues as feed additives in the broiler diet for improving the growth performance and immunity of broilers as well as to increase the value of mushroom stalk residues.
In total, the 300 ROSS 308 broilers were randomly allocated into fifteen pens with five dietary treatments: 1) control: basal diet; 2) CMWM: supplemented with 1% Cordyceps militaris waster medium (CM); 3) CMPE: supplemented with 0.5% CM + 0.5% Pleurotus eryngii stalk residue (PE); 4) CMPS: supplemented with 0.5% CM + 0.5% Pleurotus sajor-caju stalk residue (PS); 5) CMFV: supplemented with 0.5% CM + 0.5% Fammulina velutipes stalk residue (FV).
The chemical analysis results showed that CM extracts, PE extracts, PS extracts, and FV extracts contain functional components such as polysaccharides and phenols and have both DPPH scavenging and Ferrous scavenging capacities. The group CMWM saw increased body weight gain and feed conversion rate and the promotion of jejunum villus growth, but there is no significant difference in the intestinal bacteria phase. Antioxidant genes in the nuclear factor (erythroid-derived 2)-like 2 (Nrf2)-ARE pathway among the groups are significantly higher than that of the control group, especially in group CMWM.
The mushroom stalk residues have antioxidant functional components, can improve the intestinal health and body weight gain of the chickens, and can activate the antioxidant pathway of Nrf2 to increase the HO-1 expression. And, the treatment with 1% CM was the most promising as a feed additive.
Keywords: Mushroom; Waster Medium; Stalk Residues; Broiler Chickens; Antioxidant

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