Piglets' gut microbiota dynamics.

2021 ◽  
Vol 16 (048) ◽  
Author(s):  
Daniela R. Klein
Keyword(s):  
Gut Microbiota ◽  
Pathogenic Bacteria ◽  
Cell Structure ◽  
Animal Health ◽  
Swine Production ◽  
Growth Promoters ◽  
Health Maintenance ◽  
Mortality And Morbidity ◽  
Weaning Piglets ◽  
The Impact

Abstract The gut microbiota has been a subject of great interest in recent years because the composition and diversity are associated with the maintenance of piglets' health and welfare. This review aims to summarise the composition and diversity of piglet microbiome, the impact on health maintenance, influence of feed and nutrients, impact of stress situations, and the effect of growth promoters and antimicrobials on gut microbiota. The composition and diversity of microbiota are influenced by animal early experiences, the appropriate development of microbiota is essential for intestinal function, and influence animal health, growth and productivity. Interactions between the gut microbiota and the immune system help maintain epithelial barrier, and protect from post-weaning diarrhoea pathogenies. After weaning, the piglets' diet changes abruptly, affecting the microbiota and the physiology, but this can be modulated through nutrients such as fibre, protein and minerals. Stress situations contribute to the appearance of intestinal disorders, possibly changing the microbiota and epithelial cell structure, facilitating colonisation of pathogenic bacteria, decreased performance and increase the use of antimicrobials. In swine production, growth promoters and antibiotics are used to reduce mortality and morbidity, especially in weaning piglets, reducing and controlling potential pathogenic bacteria, resulting in more feed intake and body weight. Antimicrobial use reduces the entire gut microbial population; the replacers are probiotics, prebiotics and organic acids, which helps maintain intestinal microbial populations, and inhibits pathogenic bacteria development. Knowing the animal microbiome dynamics helps improve immunity, productive performance and welfare, and also reduce the use of antimicrobials in animal production.

scholarly journals BOARD INVITED REVIEW: The pig microbiota and the potential for harnessing the power of the microbiome to improve growth and health1

2019 ◽  
Vol 97 (9) ◽  
pp. 3741-3757 ◽  
Author(s):  
Nirosh D Aluthge ◽  
Dana M Van Sambeek ◽  
Erin E Carney-Hinkle ◽  
Yanshuo S Li ◽  
Samodha C Fernando ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Gut Microbiota ◽  
Therapeutic Potential ◽  
Animal Health ◽  
Microbial Colonization ◽  
Critical Importance ◽  
Specific Host ◽  
Microbiome Research ◽  
Health And Disease ◽  
The Impact

Abstract A variety of microorganisms inhabit the gastrointestinal tract of animals including bacteria, archaea, fungi, protozoa, and viruses. Pioneers in gut microbiology have stressed the critical importance of diet:microbe interactions and how these interactions may contribute to health status. As scientists have overcome the limitations of culture-based microbiology, the importance of these interactions has become more clear even to the extent that the gut microbiota has emerged as an important immunologic and metabolic organ. Recent advances in metagenomics and metabolomics have helped scientists to demonstrate that interactions among the diet, the gut microbiota, and the host to have profound effects on animal health and disease. However, although scientists have now accumulated a great deal of data with respect to what organisms comprise the gastrointestinal landscape, there is a need to look more closely at causative effects of the microbiome. The objective of this review is intended to provide: 1) a review of what is currently known with respect to the dynamics of microbial colonization of the porcine gastrointestinal tract; 2) a review of the impact of nutrient:microbe effects on growth and health; 3) examples of the therapeutic potential of prebiotics, probiotics, and synbiotics; and 4) a discussion about what the future holds with respect to microbiome research opportunities and challenges. Taken together, by considering what is currently known in the four aforementioned areas, our overarching goal is to set the stage for narrowing the path towards discovering how the porcine gut microbiota (individually and collectively) may affect specific host phenotypes.

scholarly journals One Health, Fermented Foods, and Gut Microbiota

Foods ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 195 ◽  
Author(s):  
Victoria Bell ◽  
Jorge Ferrão ◽  
Lígia Pimentel ◽  
Manuela Pintado ◽  
Tito Fernandes
Keyword(s):  
Lactic Acid ◽  
Gut Microbiota ◽  
One Health ◽  
Inflammatory Diseases ◽  
Animal Health ◽  
Saturated Fat ◽  
Well Being ◽  
Fermented Foods ◽  
Being There ◽  
The Impact

Changes in present-day society such as diets with more sugar, salt, and saturated fat, bad habits and unhealthy lifestyles contribute to the likelihood of the involvement of the microbiota in inflammatory diseases, which contribute to global epidemics of obesity, depression, and mental health concerns. The microbiota is presently one of the hottest areas of scientific and medical research, and exerts a marked influence on the host during homeostasis and disease. Fermented foods and beverages are generally defined as products made by microbial organisms and enzymatic conversions of major and minor food components. Further to the commonly-recognized effects of nutrition on the digestive health (e.g., dysbiosis) and well-being, there is now strong evidence for the impact of fermented foods and beverages (e.g., yoghurt, pickles, bread, kefir, beers, wines, mead), produced or preserved by the action of microorganisms, on general health, namely their significance on the gut microbiota balance and brain functionality. Fermented products require microorganisms, i.e., Saccharomyces yeasts and lactic acid bacteria, yielding alcohol and lactic acid. Ingestion of vibrant probiotics, especially those contained in fermented foods, is found to cause significant positive improvements in balancing intestinal permeability and barrier function. Our guts control and deal with every aspect of our health. How we digest our food and even the food sensitivities we have is linked with our mood, behavior, energy, weight, food cravings, hormone balance, immunity, and overall wellness. We highlight some impacts in this domain and debate calls for the convergence of interdisciplinary research fields from the United Nations’ initiative. Worldwide human and animal medicine are practiced separately; veterinary science and animal health are generally neither considered nor inserted within national or international Health discussions. The absence of a clear definition and subsequent vision for the future of One Health may act as a barrier to transdisciplinary collaboration. The point of this mini review is to highlight the role of fermented foods and beverages on gut microbiota and debate if the need for confluence of transdisciplinary fields of One Health is feasible and achievable, since they are managed by separate sectors with limited communication.

scholarly journals Effects of Low ω6:ω3 Ratio in Sow Diet and Seaweed Supplement in Piglet Diet on Performance, Colostrum and Milk Fatty Acid Profiles, and Oxidative Status

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2049
Author(s):  
Thi Xuan Nguyen ◽  
Alessandro Agazzi ◽  
Marcello Comi ◽  
Valentino Bontempo ◽  
Invernizzi Guido ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Survival Rate ◽  
Maternal Diet ◽  
Animal Health ◽  
Oxidative Status ◽  
Combined Effect ◽  
Milk Fatty Acid ◽  
Weaning Piglets ◽  
Plasma Leptin ◽  
The Impact

The ratio of omega-6 (ω6) to omega-3 (ω3) polyunsaturated fatty acids (PUFAs) in the diet contributes to animal health and performance modulations because they have mostly opposite physiological functions. Increasing ω3 PUFAs content in the maternal diet can stimulate antioxidative capacity in sow and piglets; however, the optimal ratio of ω6 and ω3 PUFAs in the sow diet is still under discussion. Rich sources of bioactive constituents such as brown seaweed are an excellent supplementation to promote animal health and antioxidant status. However, the knowledge of the effects of this compound, specifically in post-weaning piglets, is still limited. Moreover, the combined effect of a low ω6:ω3 PUFAs ratio in sow diet and seaweed supplementation in post-weaning piglets’ diet has never been studied. This research aims to assess the combined effect of a low ω6:ω3 ratio in sow diets and seaweed supplementation in piglet diets on their growth and oxidative status. We also assessed the impact of a low ω6:ω3 ratio in the maternal diet on reproduction, milk fatty acid (FA) profile, and plasma leptin concentration. Two sow diets (n = 8 each) contained either a control ratio (CR, 13:1 during gestation, starting from day 28 (G28) and 10:1 during lactation) or a low ratio (LR, 4:1 from G28 until the end of lactation (L-End)) of ω6:ω3 FA by adding soybean oil or linseed oil, respectively. Reproductive performance was evaluated. Colostrum and milk at lactation day 7 (L7) and L-End were collected to analyze FA profile. Plasma was collected at G28, G79, G108, L7, L14, and L-End for determination of leptin and oxidative status. At weaning, 20 male piglets were selected per sow group to form 4 diet treatments (n = 10 each), which were supplemented with or without 4 g/kg seaweed. Recording of growth performance and collection of blood were performed at days 0, 7, 15, and 21 of post-weaning for oxidative status. LR diet increased (p < 0.05) the survival rate of piglets at weaning, and individual and litter weight gains. Colostrum and milk at L7 and L-End had lower (p < 0.05) ω6:ω3 ratio in LR sows. Interaction between dietary treatments on sows and piglets was revealed for all examined growth parameters at most time points (p < 0.05). LR diet did not affect plasma leptin levels and oxidative status. These findings suggest that the seaweed supplement during post-weaning could not improve growth rate and oxidative status of piglets born from mothers receiving a low dietary ω6:ω3 ratio (4:1) during gestation and lactation. However, this low ratio was beneficial for weaning survival rate, sucking piglets’ weight gain, and ω3 enrichment in colostrum and milk.

scholarly journals Avian leukosis virus subgroup J infection influencing composition of gut microbiota within chicken

2020 ◽  
Author(s):  
Yuan Chen ◽  
Jiajia Ni ◽  
Hongwei Li
Keyword(s):  
Gut Microbiota ◽  
Lactobacillus Reuteri ◽  
Animal Health ◽  
Critical Role ◽  
Avian Leukosis Virus ◽  
Lactobacillus Helveticus ◽  
Rrna Gene ◽  
Gut Flora ◽  
Health Maintenance ◽  
Subgroup J

Abstract Background: Avian leukosis virus (ALV) is one of the major causes of disease in poultry. Probiotics play a critical role in animal health maintenance. Studies have indicated that viral infection can alter the composition of chicken gut flora. We hypothesized that the ALV-J infection could alter Probiotics composition in chicken fecal bacterial microbiome. To test is, we performed high-throughput 16S rRNA gene sequencing and evaluated gut flora profiles from the feces of ALV-J infected and healthy chickens. Results: Relative abundance at the phylum and species levels was calculated. The phylum Proteobacteria was expressed in higher abundance in ALV-J infected chickens than in healthy chickens. Additionally, the abundance of the opportunistic pathogen, Propionibacterium acnes, significantly increased in ALV-J infected chickens. Interestingly, ALV-J infection tended to be significantly decreased by the probiotics Lactobacillus helveticus and Lactobacillus reuteri. Conclusions: The study indicated ALV-J infection significantly altered the gut microbiota distribution in chickens. It also showed that ALV-J infection significantly influenced composition of the probiotics including Lactobacillus helveticus and Lactobacillus reuteri in chicken gut, which implied that to relieve avian leucosis subgroup J, microbiota-targeted therapies such as probiotic supplements are required.

scholarly journals Impacts of environmental complexity on respiratory and gut microbiome community structure and diversity in growing pigs

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ameer Megahed ◽  
Mohamed Zeineldin ◽  
Kaleigh Evans ◽  
Nidia Maradiaga ◽  
Ben Blair ◽  
...  
Keyword(s):  
Microbial Community ◽  
Gut Microbiota ◽  
Animal Health ◽  
Growing Pigs ◽  
Housing System ◽  
Environmental Complexity ◽  
Rearing Environment ◽  
Growing Pig ◽  
Α Diversity ◽  
The Impact

Abstract The limited understanding of the interaction between rearing environment of the growing pig and the pig’s microbial community impedes efforts to identify the optimal housing system to maximize animal health and production. Accordingly, we characterized the impact of housing complexity on shaping the respiratory and gut microbiota of growing pig. A total of 175 weaned pigs from 25 litters were randomly assigned within liter to either simple slatted-floor (S) or complex straw-based rearing ecosystem (C). Beside the floor swabs samples, fecal swabs and mucosal scraping samples from bronchus, ileum, and colon were collected approximately 164 days post-weaning at the time of slaughter. The S ecosystem seems to increase the α-diversity of respiratory and gut microbiota. Moreover, the C-raised pigs showed 35.4, 89.2, and 60.0% reduction in the Firmicutes/Bacteroidetes ratio than the S-raised pigs at bronchus, ileum, and colon, respectively. The unfavorable taxa Psychrobacter, Corynebacterium, Actinobacteria, and Neisseria were the signature taxa of C environment-associated microbial community. Therefore, the microbiota of S-raised pigs seems to show higher density of the most essential and beneficial taxa than the C-raised pigs. We preliminarily conclude that increasing the physical complexity of rearing environment seems to provide suboptimal conditions for establishing a healthy microbial community in the growing pigs.

scholarly journals A Novel View of Human Helicobacter pylori Infections: Interplay between Microbiota and Beta-Defensins

Biomolecules ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 237 ◽  
Author(s):  
Pero ◽  
Brancaccio ◽  
Laneri ◽  
Biasi ◽  
Lombardo ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Immune System ◽  
Gut Microbiota ◽  
Host Response ◽  
Pathogenic Bacteria ◽  
Precancerous Lesions ◽  
Innate Immune ◽  
Microbial Infections ◽  
Beta Defensins ◽  
The Impact

The gut microbiota is significantly involved in the preservation of the immune system of the host, protecting it against the pathogenic bacteria of the stomach. The correlation between gut microbiota and the host response supports human gastric homeostasis. Gut microbes may be shifted in Helicobacter pylori (Hp)-infected individuals to advance gastric inflammation and distinguished diseases. Particularly interesting is the establishment of cooperation between gut microbiota and antimicrobial peptides (AMPs) of the host in the gastrointestinal tract. AMPs have great importance in the innate immune reactions to Hp and participate in conservative co-evolution with an intricate microbiome. β-Defensins, a class of short, cationic, arginine-rich proteins belonging to the AMP group, are produced by epithelial and immunological cells. Their expression is enhanced during Hp infection. In this review, we discuss the impact of the gut microbiome on the host response, with particular regard to β-defensins in Hp-associated infections. In microbial infections, mostly in precancerous lesions induced by Hp infection, these modifications could lead to different outcomes.

scholarly journals PSII-24 Towards a better understanding of the gut microbiome functions in the swine production: extensive cultivation of the swine gut microbiome from different growth stages

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 242-243
Author(s):  
Xiaofan Wang ◽  
Xiaoyuan Wei ◽  
Feilong Deng ◽  
Tsungcheng Tsai ◽  
Charles V Maxwell ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Gut Microbiome ◽  
Pathogenic Bacteria ◽  
Illumina Miseq ◽  
Positive Control ◽  
Growth Stages ◽  
Rrna Gene ◽  
Swine Production ◽  
Fecal Samples ◽  
Different Growth Stages

Abstract Substantial progress has been made in the culture-omics of the human gut microbiota. However, little is known about the culture-omics of the swine gut microbiota, despite recent reports of their significant roles in swine health and production. To fill this knowledge gap in research, we tested 52 bacterial cultivation methods with different media and gas combinations. Fresh fecal samples (0.2g/sample) were collected from three pigs at the end of four growth stages: lactation, nursery, growing and finishing and were mixed with a stomacher in 20 mL saline. Aliquots of 50 uL microbial suspensions were then spread onto different media plates and incubated under aerobic and anaerobic conditions at 37C for up to 5 days. An additional aliquot of each sample was subjected to direct DNA extraction as a positive control. Bacterial colonies from each plate were collected and DNA was extracted from these samples using the Powersoil DNA isolation kit and sequenced with an Illumina Miseq sequencer targeting the V4 region of the 16S rRNA gene. Sequences were analyzed with the Deblur algorithm in the QIIME2 package. A total of 378, 482, 565, and 555 bacterial features were observed from microbial solutions at the end of lactation, nursery, growing and finishing. Our culturing methods recovered 415, 675, 808, and 823 features correspondingly, representing 45.2%, 54.8%, 53.3%, and 56.4% of total features observed in microbial solutions. The top ten most easily cultured genus were Escherichia, Streptococcus, Lactobacillus, Megasphaera, Acidaminococcus, Bacillus, Mitsuokella, Enterococcus and Prevotella. Non-parametric permutational multivariate analysis of variance shows that the main factors driving the swine culture-omics included medium, age and oxygen condition. This study identifies the cultivable bacteria from fecal samples collected at different growth stages of pigs and provides a guidance to cultivate potential beneficial or pathogenic bacteria of interests and validate their functions in swine production.

scholarly journals Intake of nanoparticles and impact on gut microbiota: in vitro and animal models available for testing

2021 ◽  
Vol 3 ◽  
Author(s):  
Débora Campos ◽  
Ricardo Goméz-García ◽  
Diana Oliveira ◽  
Ana Raquel Madureira
Keyword(s):  
Gut Microbiota ◽  
Oral Delivery ◽  
Animal Studies ◽  
Pathogenic Bacteria ◽  
Oral Intake ◽  
Nanosized Materials ◽  
Antimicrobial Nanoparticles ◽  
The Impact

ABSTRACT The oral delivery of compounds associated with diet or medication have an impact on the gut microbiota balance, which in turn, influences the physiologic process. Several reports have shown significant advances in clarifying the impact, interactions and outcomes of oral intake of nanoparticles and the human gut. These interactions may affect the bioavailability of the delivered compounds. In addition, there is a considerable breakthrough in the development of antimicrobial nanoparticles for intestinal pathogenic bacteria. Several in vitro fermentation and in vivo models have been developed throughout the years and were used to test these systems. The methodologies and studies carried out so far on the modulation of human and animal gut microbiome by oral delivery nanosized materials were reviewed. Overall, the available in vitro studies mimic the real physiological events enabling to select the best production conditions of nanoparticulate systems in a preliminary stage of research. On the other hand, animal studies can be used to access the dosage effect, safety and correlation between haematological, biochemical and symptoms, with gut microbiota groups and metabolites.

scholarly journals Exploring the influence of the gut microbiota and probiotics on health: a symposium report

2014 ◽  
Vol 112 (S1) ◽  
pp. S1-S18 ◽  
Author(s):  
Linda V. Thomas ◽  
Theo Ockhuizen ◽  
Kaori Suzuki
Keyword(s):  
Gut Microbiota ◽  
Pathogenic Bacteria ◽  
Inflammatory Responses ◽  
Disease Risk ◽  
Ex Vivo ◽  
Inflammatory Diseases ◽  
Present Report ◽  
Keystone Species ◽  
Gut Barrier Function ◽  
The Impact

The present report describes the presentations delivered at the 7th International Yakult Symposium, ‘The Intestinal Microbiota and Probiotics: Exploiting Their Influence on Health’, in London on 22–23 April 2013. The following two themes associated with health risks were covered: (1) the impact of age and diet on the gut microbiota and (2) the gut microbiota's interaction with the host. The strong influence of the maternal gut microbiota on neonatal colonisation was reported, as well as rapid changes in the gut microbiome of older people who move from community living to residential care. The effects of dietary changes on gut metabolism were described and the potential influence of inter-individual microbiota differences was noted, in particular the presence/absence of keystone species involved in butyrate metabolism. Several speakers highlighted the association between certain metabolic disorders and imbalanced or less diverse microbiota. Data from metagenomic analyses and novel techniques (including anex vivohuman mucosa model) provided new insights into the microbiota's influence on coeliac, obesity-related and inflammatory diseases, as well as the potential of probiotics.Akkermansia muciniphilaandFaecalibacterium prausnitziiwere suggested as targets for intervention. Host–microbiota interactions were explored in the context of gut barrier function, pathogenic bacteria recognition, and the ability of the immune system to induce either tolerogenic or inflammatory responses. There was speculation that the gut microbiota should be considered a separate organ, and whether analysis of an individual's microbiota could be useful in identifying their disease risk and/or therapy; however, more research is needed into specific diseases, different population groups and microbial interventions including probiotics.

scholarly journals 16S rRNA Sequencing Analysis of the Gut Microbiota in Broiler Chickens Prophylactically Administered with Antimicrobial Agents

Antibiotics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 146 ◽  
Author(s):  
Matteo Cuccato ◽  
Selene Rubiola ◽  
Diana Giannuzzi ◽  
Elena Grego ◽  
Paola Pregel ◽  
...  
Keyword(s):  
16S Rrna ◽  
Gut Microbiota ◽  
Broiler Chickens ◽  
Antimicrobial Agents ◽  
Alpha Diversity ◽  
Rrna Gene ◽  
Sequencing Analysis ◽  
Poultry Production ◽  
Growth Promoters ◽  
The Impact

In poultry production, gut microbiota (GM) plays a pivotal role and influences different host functions related to the efficiency of production performances. Antimicrobial (AM) use is one of the main factors affecting GM composition and functions. Although several studies have focused their attention on the role of AMs as growth promoters in the modulation of GM in broilers, the consequences of higher AM concentrations administered during prophylactic treatments need to be better elucidated. For this purpose, 16S rRNA gene sequencing was performed to evaluate the impact of different prophylactic AM protocols on the composition and diversity of the broiler GM. Diversity analysis has shown that AM treatment significantly affects alpha diversity in ileum and beta diversity in both ileum and caecum. In ileal samples, the Enterobacteriaceae family has been shown to be particularly affected by AM treatments. AMs have been demonstrated to affect GM composition in broiler. These findings indicate that withdrawal periods were not enough for the restoral of the original GM. Further studies are needed for a better elucidation of the negative effects caused by an altered GM in broilers.

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