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  • Title: Direct-fed glucose oxidase and its combination with B. amyloliquefaciens SC06 on growth performance, meat quality, intestinal barrier, antioxidative status, and immunity of yellow-feathered broilers.
    Author: Wang Y, Wang Y, Xu H, Mei X, Gong L, Wang B, Li W, Jiang S.
    Journal: Poult Sci; 2018 Oct 01; 97(10):3540-3549. PubMed ID: 30085304.
    Abstract:
    This experiment investigated the effects of dietary glucose oxidase (GOD) and its combination with B. amyloliquefaciens SC06 (BaSC06) on the growth performance, meat quality, intestinal physical barrier, antioxidative status and immunity of male Lingnan yellow-feathered broilers. A total of 720 1-d-old broilers were assigned into 4 treatments with 6 replicates per treatment (30 birds per replicate): (1) basal diet (Ctr), (2) basal diet with 200 mg/kg enramycin (ER), (3) basal diet with 75 U/kg GOD, and (4) GOD diet (75U/kg) supplemented with 1 × 105 colony-forming units BaSC06/kg feed (GB), for an experimental duration of 52 d. The results showed that there were no significant effects of GOD or GB on growth performance of birds. The shear force and drip loss of breast muscle of birds fed GOD and GB were less than those fed ER, while the shear force in GB significantly decreased compared to Ctr. Also, both GOD and GB treatment increased about 1-fold expression of ZO-1, Claudin-1, Occludin, and MUC-2 genes in jejunal mucosa compared to Ctr, no difference was found between GOD and GB. Compared to Ctr, serum total antioxidant capability and glutathione peroxidase in GOD and GB increased, while the malondialdehyde level and xanthine oxidase activity significantly decreased. Both GOD and GB treatments reduced the relative level of HO-1, p53, and BAX transcripts in liver. It is worth noting that GB decreased transcription of p53 and Bcl-2 by 76.11% and 50.19% compared to GOD, respectively. In addition, compared to Ctr, GOD and GB markedly increased serum IL-2 content by 110% and 182%, while decreased IFN-γ by 43.57% and 57.51%, respectively. The highest sIgA level in GB was found among four groups. In conclusion, dietary treatment with GOD and its combination with BaSC06 both had beneficial effects on shear force and drip loss, expression of intestinal tight junctions, antioxidative capacity and immune function. It is suggested that GB had better effect than GOD on anti-apoptosis.
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