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Zhang M, Yang Z, Wu G, Xu F, Zhang J, Luo X, Ma Y, Pang H, Duan Y, Chen J, Cai Y, Wang L, Tan Z. Effects of Probiotic-Fermented Feed on the Growth Profile, Immune Functions, and Intestinal Microbiota of Bamei Piglets. Animals (Basel) 2024; 14:647. [PMID: 38396614 PMCID: PMC10886304 DOI: 10.3390/ani14040647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Purebred Bamei piglets present problems, including slow growth, respiratory disease, and post-weaning stress. This study investigated the effects of Lactobacillus plantarum QP28-1- and Bacillus subtilis QB8-fermented feed supplementation on the growth performance, immunity, and intestinal microflora of Bamei piglets from Qinghai, China. A total of 48 purebred Bamei piglets (25 days; 6.8 ± 0.97 kg) were divided into the following four groups for a 28-day diet experiment: basal feed (CK); diet containing 10% Lactobacillus plantarum-fermented feed (L); diet containing 10% Bacillus subtilis-fermented feed (B); and diet containing a mixture of 5% Lactobacillus plantarum + 5% Bacillus subtilis-fermented feed (H). The daily weight gain and daily food intake of group H increased (p < 0.05), and the feed/weight gain ratios of the groups fed with fermented feed decreased more than that of the CK group. The levels of three immune factors, namely immunoglobulin (Ig)M, IgG, and interferon-γ, were higher (p < 0.05), whereas those of tumor necrosis factor-α, interleukin (IL)-1β, and IL-6 were lower (p < 0.05) in the fermented feed groups than in the CK group. Total protein was higher (p < 0.05), while urea nitrogen, total cholesterol and triglycerides were lower (p < 0.05) in the mixed-fermented feed group than in the CK group. Analysis of the gut microbiota showed that the addition of fermented feed increased the α-diversity of the gut microbiota, increasing the abundances of probiotics including Lactobacillus, Muribaculaceae, Ruminococcaceae, Prevotellaceae, and Rikenellaceae. Additionally, correlation analysis demonstrated that several of these probiotic bacteria were closely related to serum immunity. In conclusion, fermented feed supplementation rebuilt the intestinal microbiota of Bamei piglets, thereby reducing the feed/weight ratio, improving feed intake, and enhancing immunity.
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Affiliation(s)
- Miao Zhang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
| | - Zhenyu Yang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
| | - Guofang Wu
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (G.W.); (J.Z.); (X.L.); (Y.M.)
| | - Fafang Xu
- Bamei Pig Original Breeding Base of Huzhu County, Haidong 810600, China;
| | - Jianbo Zhang
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (G.W.); (J.Z.); (X.L.); (Y.M.)
| | - Xuan Luo
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (G.W.); (J.Z.); (X.L.); (Y.M.)
| | - Yuhong Ma
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (G.W.); (J.Z.); (X.L.); (Y.M.)
| | - Huili Pang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
| | - Yaoke Duan
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
| | - Jun Chen
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
| | - Yimin Cai
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
- Japan International Research Center for Agricultural Sciences, Crop, Livestock and Environment Division, Tsukuba 305-8686, Japan
| | - Lei Wang
- Plateau Livestock Genetic Resources Protection and Innovative Utilization Key Laboratory of Qinghai Province, Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Qinghai Academy of Animal and Veterinary Medicine, Qinghai University, Xining 810016, China; (G.W.); (J.Z.); (X.L.); (Y.M.)
| | - Zhongfang Tan
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; (M.Z.); (Z.Y.); (H.P.); (Y.D.); (J.C.); (Y.C.)
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Shekhar S, Brar NK, Håkansson AP, Petersen FC. Treatment of Mouse Infants with Amoxicillin, but Not the Human Milk-Derived Antimicrobial HAMLET, Impairs Lung Th17 Responses. Antibiotics (Basel) 2023; 12:antibiotics12020423. [PMID: 36830333 PMCID: PMC9952748 DOI: 10.3390/antibiotics12020423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 02/23/2023] Open
Abstract
Emerging evidence suggests differential effects of therapeutic antibiotics on infant T cell responses to pathogens. In this study, we explored the impact of the treatment of mouse infants with amoxicillin and the human milk-derived antimicrobial HAMLET (human alpha-lactalbumin made lethal to tumor cells) on T cell responses to Streptococcus pneumoniae. Lung cells and splenocytes were isolated from the infant mice subjected to intranasal administration of amoxicillin, HAMLET, or a combination of HAMLET and amoxicillin, and cultured with S. pneumoniae to measure T cell responses. After in-vitro stimulation with S. pneumoniae, lung cells from amoxicillin- or amoxicillin plus HAMLET-treated mice produced lower levels of Th17 (IL-17A), but not Th1 (IFN-γ), cytokine than mice receiving HAMLET or PBS. IL-17A/IFN-γ cytokine levels produced by the stimulated splenocytes, on the other hand, revealed no significant difference among treatment groups. Further analysis of T cell cytokine profiles by flow cytometry showed that lung CD4+, but not CD8+, T cells from amoxicillin- or HAMLET plus amoxicillin-treated mice expressed decreased levels of IL-17A compared to those from HAMLET-exposed or control mice. Collectively, these results indicate that exposure of infant mice to amoxicillin, but not HAMLET, may suppress lung Th17 responses to S. pneumoniae.
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Affiliation(s)
| | | | - Anders P. Håkansson
- Division of Experimental Infection Medicine, Department of Translational Medicine, Lund University, 21428 Malmö, Sweden
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