1
|
Yang J, Wang J, Shang P, Liu Z, Zhang B, Yang D, Zhang H. Translocation of probiotics via gut-lung axis enhanced pulmonary immunity of weaned piglets exposed to low concentrations of ammonia. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 284:116821. [PMID: 39163664 DOI: 10.1016/j.ecoenv.2024.116821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/22/2024]
Abstract
OBJECTIVE Lactobacillus salivarius is a probiotic bacteria strain in human and animal diets. The administration of probiotics to weaned piglets may improve their growth by optimizing the gastrointestinal bacterial composition. To further investigate the effect of bacterial communication between the gastrointestinal tract and lungs on bodily immunity, we reared weaned piglets in a low-ammonia gas environment. L. salivarius was supplemented to explore its effects on pulmonary immunity and its potential for bacterial translocation. RESULTS One hundred sixty weaned piglets were allocated to four groups: L. salivarius-supplemented, L. reuteri-supplemented, control, and antibiotic drug (aureomycin)-supplemented. The feeding duration was 28 d. The body weights of piglets administered a strain of Lactobacillus were better than those of the control (P < 0.01). The transcription level of immune factors interleukin 2 (IL-2), IL-4, interferon α (IFN-α), and tumor necrosis factor α (TNF-α) in cells of the ileum and lung was significantly higher (P < 0.01). Lung and ileal mucus tissues were isolated to sequence the bacterial composition, which suggested a higher richness in the lungs at the phylum level, which was not significant in the ileum. Functional bacteria were more abundant in the ileum and lungs. The proportion of the genera of Lactobacillus, Prevotella, Actinobacillus, and Prevotellaceae_ NK3B31_group increased in two tissues, and a lower ratio of Streptococcus, Escherichia-Shigella, and mycoplasma was detected. The correlation between the microbial genus composition and the levels of immune factors suggests that the abundance of Lactobacillus plays the same positive role in the lungs and ileum. Mycoplasmas play a negative role in ileal and pulmonary immunity. More Lactobacillus reuteri and anaerobic probiotic bacteria were detected in the lungs. CONCLUSION The colonization of Lactobacillus salivarius and Lactobacillus reuteri in the membrane of the ileum optimized the ileal microbial composition, enrolled other probiotic bacteria translating to the lung, improved the abundance of pulmonary microbiota, and enhanced immunity after exposure to low concentrations of ammonia.
Collapse
Affiliation(s)
- Jiajun Yang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400, China; Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jing Wang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400, China
| | - Peng Shang
- College of Animal Science, Tibet Agriculture and Animal Husbandry College, Linzhi 860000, China
| | - Zongliang Liu
- Hefei Zhien Biotechnology Company Limited, National University Science Park, No.602 of Huangshan Road, Hefei, Anhui Province 230001, China
| | - Bo Zhang
- Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Dongsheng Yang
- School of Animal Husbandry and Veterinary Medicine, Jiangsu Vocational College of Agriculture and Forestry, Jurong, Jiangsu 212400, China
| | - Hao Zhang
- Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
2
|
Hu J, Zhang S, Li M, Zhao G. Impact of dietary supplementation with β-alanine on the rumen microbial crude protein supply, nutrient digestibility and nitrogen retention in beef steers elucidated through sequencing the rumen bacterial community. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:418-427. [PMID: 38808018 PMCID: PMC11130998 DOI: 10.1016/j.aninu.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/17/2024] [Accepted: 02/29/2024] [Indexed: 05/30/2024]
Abstract
This study investigated the effects of β-alanine (β-Ala) on rumen fermentation, nutrient digestibility, nitrogen (N) metabolism, plasma biochemical parameters, and rumen bacterial communities in beef steers. Six steers with initial liveweight of 252.8 ± 5.2 kg and 3 treatments of supplementing with 0, 30, or 60 g β-Ala per day to basal diet were allocated in a replicated 3 × 3 Latin square design. Each experimental period was 20 d, of which the first 15 d were for adaptation and the subsequent 5 d were for sampling. The results showed that β-Ala linearly increased the ruminal concentration of microbial crude protein (MCP) (P = 0.005), but it did not affect the ruminal concentrations of ammonia N and total volatile fatty acids (P > 0.10). β-Ala also linearly increased the dry matter (DM) (P = 0.009), organic matter (OM) (P = 0.017) and crude protein (CP) (P = 0.043) digestibility, tended to decrease the acid detergent fiber digestibility (P = 0.077), but it did not affect the neutral detergent fiber digestibility (P = 0.641). β-Ala quadratically increased the relative abundance of ruminal Bacteroidota (P = 0.021) at the phylum level, and increased Prevotella (P = 0.028) and Prevotellaceae_UCG-003 (P = 0.014), and decreased the relative abundance of NK4A214_group (P = 0.009) at the genus level. Feeding steers with β-Ala linearly increased the urinary N (P = 0.006), urea excretions (P = 0.002) and the N retention (P = 0.004), but it did not affect the N utilization efficiency (P = 0.120). β-Ala quadratically increased the plasma concentration of the total antioxidant capacity (P = 0.011) and linearly increased the plasma concentration of insulin-like growth factor-1 (P < 0.001). In summary, dietary supplementation with β-Ala improved the rumen MCP supply and increased the digestibility of DM, OM, CP and the N retention. Further research is necessary to verify the ruminal degradability of β-Ala and to investigate the mechanism of the impact of absorbed β-Ala on the anti-oxidative ability in steers.
Collapse
Affiliation(s)
| | | | - Mengmeng Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, 100193 Beijing, China
| | - Guangyong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, 100193 Beijing, China
| |
Collapse
|
3
|
Li K, Hou L, Du T, Pu G, Liu C, Liu G, Zhou J, Huang R, Zhao Q, Li P. Genome-wide association study identified five quantitative trait loci and two candidate genes for digestive traits in Suhuai pigs. Anim Genet 2024; 55:471-474. [PMID: 38618678 DOI: 10.1111/age.13430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 03/24/2024] [Accepted: 03/31/2024] [Indexed: 04/16/2024]
Abstract
This work aimed to identify markers and candidate genes underlying porcine digestive traits. In total, 331 pigs were genotyped by 80 K Chip data or 50 K Chip data. For apparent neutral detergent fiber digestibility, a total of 19 and 21 candidate single nucleotide polymorphisms (SNP) were respectively identified using a genome-wide efficient mixed-model association algorithm and linkage-disequilibrium adjusted kinship. Among them, three quantitative trait locus (QTL) regions were identified. For apparent acid detergent fiber digestibility, a total of 16 and 17 SNPs were identified by these two methods, respectively. Of these, three QTL regions were also identified. Moreover, two candidate genes (MST1 and LATS1), which are functionally related to intestinal homeostasis and health, were detected near these significant SNPs. Taken together, our results could provide a basis for deeper research on digestive traits in pigs.
Collapse
Affiliation(s)
- Kaijun Li
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
- Nanjing Institute of Animal Husbandry and Poultry Science, Nanjing, China
| | - Liming Hou
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
- Huaian Academy, Nanjing Agricultural University, Huaian, China
| | - Taoran Du
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
| | - Guang Pu
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
| | - Chenxi Liu
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
| | - Gensheng Liu
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
| | - Juan Zhou
- Huaiyin Pig Breeding Farm of Huaian City, Huaian, China
| | - Ruihua Huang
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
- Huaian Academy, Nanjing Agricultural University, Huaian, China
| | - Qingbo Zhao
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
| | - Pinghua Li
- Institute of Swine Science, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Evaluation and Utilization of Livestock and Poultry Resources (Pig) of Ministry of Agriculture and Rural Affairs, Nanjing Agricultural University, Nanjing, China
- Huaian Academy, Nanjing Agricultural University, Huaian, China
| |
Collapse
|
4
|
Popov IV, Einhardt Manzke N, Sost MM, Verhoeven J, Verbruggen S, Chebotareva IP, Ermakov AM, Venema K. Modulation of Swine Gut Microbiota by Phytogenic Blends and High Concentrations of Casein in a Validated Swine Large Intestinal In Vitro Model. Vet Sci 2023; 10:677. [PMID: 38133228 PMCID: PMC10748322 DOI: 10.3390/vetsci10120677] [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: 10/09/2023] [Revised: 11/16/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
Phytogenic feed additives are gaining popularity in livestock as a replacement for antibiotic growth promotors. Some phytogenic blends (PB) positively affect the production performance, inhibit pathogens within the gut microbiota, and improve the overall health of farm animals. In this study, a swine large intestine in vitro model was used to evaluate the effect of two PBs, alone or in combination with casein, on swine gut microbiota. As a result, the combination of casein with PB1 had the most beneficial effects on swine gut microbiota, as it increased the relative abundance of some commensal bacteria and two genera (Lactobacillus and Oscillospiraceae UCG-002), which are associated with greater production performance in pigs. At the same time, supplementation with PBs did not lead to an increase in opportunistic pathogens, indicating their safety for pigs. Both PBs showed fewer changes in swine gut microbiota compared to interventions with added casein. In contrast, casein supplementation significantly increased beta diversity and the relative abundance of commensal as well as potentially beneficial bacteria. In conclusion, the combination of casein with PBs, in particular PB1, had the most beneficial effects among the studied supplements in vitro, with respect to microbiota modulation and metabolite production, although this data should be proven in further in vivo studies.
Collapse
Affiliation(s)
- Igor V. Popov
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University—Campus Venlo, 5928 SZ Venlo, The Netherlands; (I.V.P.); (M.M.S.); (S.V.)
- Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, 344000 Rostov-on-Don, Russia (A.M.E.)
- Division of Immunobiology and Biomedicine, Center of Genetics and Life Sciences, Sirius University of Science and Technology, Federal Territory Sirius, 354340 Sochi, Russia
| | | | - Mônica Maurer Sost
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University—Campus Venlo, 5928 SZ Venlo, The Netherlands; (I.V.P.); (M.M.S.); (S.V.)
| | - Jessica Verhoeven
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University—Campus Venlo, 5928 SZ Venlo, The Netherlands; (I.V.P.); (M.M.S.); (S.V.)
| | - Sanne Verbruggen
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University—Campus Venlo, 5928 SZ Venlo, The Netherlands; (I.V.P.); (M.M.S.); (S.V.)
| | - Iuliia P. Chebotareva
- Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, 344000 Rostov-on-Don, Russia (A.M.E.)
- Division of Nanobiomedicine, Center of Genetics and Life Sciences, Sirius University of Science and Technology, Federal Territory Sirius, 354340 Sochi, Russia
| | - Alexey M. Ermakov
- Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, 344000 Rostov-on-Don, Russia (A.M.E.)
| | - Koen Venema
- Centre for Healthy Eating & Food Innovation (HEFI), Maastricht University—Campus Venlo, 5928 SZ Venlo, The Netherlands; (I.V.P.); (M.M.S.); (S.V.)
| |
Collapse
|
5
|
Albuquerque A, Garrido N, Charneca R, Egas C, Martin L, Ramos A, Costa F, Marmelo C, Martins JM. Influence of Sex and a High-Fiber Diet on the Gut Microbiome of Alentejano Pigs Raised to Heavy Weights. Vet Sci 2023; 10:641. [PMID: 37999464 PMCID: PMC10675691 DOI: 10.3390/vetsci10110641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/22/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023] Open
Abstract
This study investigates the influence of sex and a dietary transition on the gut microbiota of a local Portuguese pig breed. Three groups of male Alentejano pigs (n = 10 each) were raised between ~40 and 160 kg LW. Group C included pigs that were surgically castrated, while the I group included intact ones; both were fed with commercial diets. The third group, IExp, included intact pigs that were fed commercial diets until ~130 kg, then replaced by an experimental diet based on legumes and agro-industrial by-products between ~130 and 160 kg. Fecal samples were collected two weeks before slaughter. The total DNA was extracted and used for 16S metabarcoding on a MiSeq® System. The dietary transition from a commercial diet to the experimental diet substantially increased and shifted the diversity observed. Complex carbohydrate fermenting bacteria, such as Ruminococcus spp. and Sphaerochaeta spp., were significantly more abundant in IExp (q < 0.05). On the other hand, castrated pigs presented a significantly lower abundance of the potential probiotic, Roseburia spp. and Lachnospiraceae NK4A136 group (q < 0.01), bacteria commonly associated with better gut health and lower body fat composition. Understanding the role of gut microbiota is paramount to ensure a low skatole deposition and consumers' acceptance of pork products from non-castrated male pigs.
Collapse
Affiliation(s)
- André Albuquerque
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Nicolás Garrido
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- Escola Superior Agrária de Elvas, Departamento de Ciência Agrárias e Veterinárias, Edifício Quartel do Trem, Avenida 14 de Janeiro n° 21, 7350-092 Elvas, Portugal
| | - Rui Charneca
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED & CHANGE, Departamento de Zootecnia, ECT–Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Conceição Egas
- Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal;
- Next Generation Sequencing Unit, Biocant, 3060-197 Cantanhede, Portugal
| | - Luísa Martin
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- Departamento de Ciências Agrárias e Tecnologias, Escola Superior Agrária de Coimbra, Bencanta, 3045-601 Coimbra, Portugal
| | - Amélia Ramos
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- Departamento de Ciências Agrárias e Tecnologias, Escola Superior Agrária de Coimbra, Bencanta, 3045-601 Coimbra, Portugal
| | - Filipa Costa
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
| | - Carla Marmelo
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - José Manuel Martins
- ECO-PIG Consortium, Z.I. Catraia, Ap. 50, 3440-131 Santa Comba Dão, Portugal; (N.G.); (R.C.); (L.M.); (A.R.); (F.C.); (C.M.)
- MED & CHANGE, Departamento de Zootecnia, ECT–Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| |
Collapse
|
6
|
Floridia V, Giuffrè L, Giosa D, Arfuso F, Aragona F, Fazio F, Chen C, Song C, Romeo O, D'Alessandro E. Comparison of the Faecal Microbiota Composition Following a Dairy By-Product Supplemented Diet in Nero Siciliano and Large White × Landrace Pig Breeds. Animals (Basel) 2023; 13:2323. [PMID: 37508100 PMCID: PMC10376647 DOI: 10.3390/ani13142323] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
The current study compared the faecal microbiota composition of two pig breeds (autochthonous vs. commercial) to understand what happens after the integration of liquid whey in the diet and what the role of the host genetic is. The trial was conducted for 60 days, and the faecal microbiota composition was investigated at three time points, T0, T1 (after 30 days) and T2 (after 60 days) in 30 female pigs (20 commercial crossbred and 10 Nero Siciliano pigs). The animals were divided into four groups (two control and two treatment groups). Generally, in both breeds, Firmicutes (51%) and Bacteroidota (36%) were the most abundant phylum whereas Prevotella, Treponema and Lactobacillus were the most abundant genera. The two breeds have a different reaction to a liquid whey diet. In fact, as shown by PERMANOVA analysis, the liquid whey significantly (p < 0.001) affects the microbiota composition of crossbreeds while not having an effect on the microbiota of the Nero Siciliano. Despite this, in both breeds Bifidobacterium and Ruminococcus have been positively influenced by liquid whey and they promote intestinal health, improve immunity, increase performance, and feed efficiency. In conclusion, the integration of liquid whey had a different effect on the Nero Siciliano and crossbred pig breeds, emphasizing the importance of the host genetic profile in determining the faecal bacterial composition.
Collapse
Affiliation(s)
- Viviana Floridia
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Viale Palatucci 13, 98168 Messina, Italy
| | - Letterio Giuffrè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Domenico Giosa
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Francesca Arfuso
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Viale Palatucci 13, 98168 Messina, Italy
| | - Francesca Aragona
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Viale Palatucci 13, 98168 Messina, Italy
| | - Francesco Fazio
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Viale Palatucci 13, 98168 Messina, Italy
| | - Cai Chen
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Chengy Song
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Orazio Romeo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Enrico D'Alessandro
- Animal Production Unit, Department of Veterinary Sciences, University of Messina, Viale Palatucci 13, 98168 Messina, Italy
| |
Collapse
|
7
|
Feed additives of bacterial origin as an immunoprotective or imunostimulating factor. ANNALS OF ANIMAL SCIENCE 2023. [DOI: 10.2478/aoas-2023-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Abstract
Since January 2006 when using antibiotics as growth promoters in animal feed have been banned scientists are looking for the best resolution to apply alternative substances. Extensive research into the health-promoting properties of probiotics and prebiotics has led to significant interest in the mechanisms of action of the combined administration of these feed additives as a synbiotic. Subsequent research has led to the development of new products. Among the most important health benefits of additives are, inhibiting the growth of pathogenic bacteria in the GI tract, maintenance of homeostasis, treatment of inflammatory bowel diseases, and increase in immunity. Specific immunomodulatory mechanisms of action are not well understood and the effect is not always positive, though there are no reports of adverse effects of these substances found in the literature. For this reason, research is still being conducted on their proper application. However, due to the difficulties of carrying out research on humans, evidence of the beneficial effect of these additives comes mainly from experiments on animals. The objective of the present work was to assess the effect of probiotics, prebiotics, and synbiotics, as well as new additives including postbiotics, proteobiotics, nutribiotics, and pharmabiotics, on specific immunomodulatory mechanisms of action, increase in immunity, the reduction of a broad spectrum of diseases.
Collapse
|