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| Registros recuperados: 54 | |
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| Yasir,Muhammad. |
| Abstract In this study for the first-time microbial communities in the caves located in the mountain range of Hindu Kush were evaluated. The samples were analyzed using culture-independent (16S rRNA gene amplicon sequencing) and culture-dependent methods. The amplicon sequencing results revealed a broad taxonomic diversity, including 21 phyla and 20 candidate phyla. Proteobacteria were dominant in both caves, followed by Bacteroidetes, Actinobacteria, Firmicutes, Verrucomicrobia, Planctomycetes, and the archaeal phylum Euryarchaeota. Representative operational taxonomic units from Koat Maqbari Ghaar and Smasse-Rawo Ghaar were grouped into 235 and 445 different genera, respectively. Comparative analysis of the cultured bacterial isolates revealed distinct... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caves; 16S ribosomal RNA; Microbiota; Antimicrobial; Sediments. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200248 |
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| Basso,P.J.; Fonseca,M.T.C.; Bonfá,G.; Alves,V.B.F.; Sales-Campos,H.; Nardini,V.; Cardoso,C.R.B.. |
| Inflammatory bowel disease (IBD), which includes Crohn's disease (CD) and ulcerative colitis (UC), is a chronic disorder that affects thousands of people around the world. These diseases are characterized by exacerbated uncontrolled intestinal inflammation that leads to poor quality of life in affected patients. Although the exact cause of IBD still remains unknown, compelling evidence suggests that the interplay among immune deregulation, environmental factors, and genetic polymorphisms contributes to the multifactorial nature of the disease. Therefore, in this review we present classical and novel findings regarding IBD etiopathogenesis. Considering the genetic causes of the diseases, alterations in about 100 genes or allelic variants, most of them in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inflammatory bowel disease; Crohn's disease; Ulcerative colitis; Immune response; Etiology; Microbiota. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000900727 |
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| Cardona, Emilie; Gueguen, Yannick; Magré, Kevin; Lorgeoux, Bénédicte; Piquemal, David; Pierrat, Fabien; Noguier, Florian; Saulnier, Denis. |
| Background Biofloc technology (BFT), a rearing method with little or no water exchange, is gaining popularity in aquaculture. In the water column, such systems develop conglomerates of microbes, algae and protozoa, together with detritus and dead organic particles. The intensive microbial community presents in these systems can be used as a pond water quality treatment system, and the microbial protein can serve as a feed additive. The current problem with BFT is the difficulty of controlling its bacterial community composition for both optimal water quality and optimal shrimp health. The main objective of the present study was to investigate microbial diversity of samples obtained from different culture environments (Biofloc technology and clear... |
| Tipo: Text |
Palavras-chave: Shrimp; Biofloc; Clear sea water; Bacterial communities; Culture environment; Microbiota. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00346/45694/45314.pdf |
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| Oliveira,Ronaldo Lopes; Pereira,José Carlos; Silva,Paulo Roberto de Carvalho e; Euclydes,Ricardo Frederico. |
| O experimento foi realizado para avaliar o efeito de dois níveis de cama de frango (15,0 e 30,0%), associada ou não a um suplemento à base de microbiota ruminal liofilizada de bovinos adultos (0 e 10 g/anim.dia), na alimentação de novilhos Holandês/Zebu. Quatro novilhos fistulados no rúmen e abomaso foram distribuídos em quadrado latino 4 x 4 em arranjo fatorial 2 x 2 (nível de cama de frango x com ou sem micobiota ruminal), alimentados à vontade e individualmente. Composição microbiana, eficiência de síntese microbiana, pH e concentração de nitrogênio amoniacal no rúmen foram avaliados. O nível de 30,0% de cama de frango nas dietas de novilhos não influenciou a composição dos microrganismos ruminais, a eficiência de síntese microbiana e o pH ruminal.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composição microbiana; Eficiência microbiana; Ruminal N-NH3 ruminal e pH; Cama de frango; Microbiota. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35981999000500030 |
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| DIAS, J. A.; CARVALHO, B. P.; MESQUITA, A. Q. de; LAMBERTUCCI, D. M.; CAVALCANTE, F. A.. |
| Este estudo teve o objetivo de caracterizar indústrias lácteas e os indicadores de qualidade do leite de propriedades vinculadas às indústrias localizadas nas regiões do Alto Acre, Baixo Acre e Tarauacá-Envira, estado do Acre. Foram avaliadas amostras de leite de 92 rebanhos leiteiros para determinação da Contagem Total de Bactérias (CTB), convertidas em Contagem Padrão em Placas (CPP), e Contagem de Células Somáticas (CCS) realizadas pelo método de citometria de fluxo em equipamento automatizado. O questionário epidemiológico foi aplicado a 56 produtores a fim de obter informações do sistema de produção e manejo. Para a análise de dados foi utilizado o programa Epiinfo 7.2.2.6. As indústrias lácteas avaliadas captavam entre 750 e 11.500 litros/dia, e a... |
| Tipo: Folhetos |
Palavras-chave: Microbiota; Alto Acre; Baixo Acre; Tarauacá-Envira; Epiinfo; Indústria láctea; Acre; Amazônia Ocidental; Western Amazon; Produção Leiteira; Leite; Qualidade; Milk production; Milk quality; Dairy industry. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136166 |
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| Lamari, Faouzi; Castex, Mathieu; Larcher, Thibaut; Ledevin, Mireille; Mazurais, David; Bakhrouf, Amina; Gatesoupe, Joel. |
| Probiotics may have many effects on health and development of fish larvae. One of the most promising is related to spinal conformation, though the mode of action is not clearly understood. The present study attempted to investigate the effects of two strains of lactic acid bacteria on associated microbiota, histological development and gene expression. Sea bass larvae were fed since 5 dph (day post hatch) with either a standard control diet (Diet C), or the same diet supplemented with Pediococcus acidilactici MA18/5M (Diet P), or with an autochthonous strain of Lactobacillus casei (X2; Diet L). The two lactic acid bacteria were incorporated in the diets at the levels of 106 and 107 CFU (colony forming units) g-1 in two consecutive experiments,... |
| Tipo: Text |
Palavras-chave: Fish larvae; Probiotics; Microbiota; Histopathology; Gene expression; DGGE. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00108/21966/19673.pdf |
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| Travers, Marie-agnes; Sow, Cisse; Zirah, Severine; Deregnaucourt, Christiane; Chaouch, Soraya; Queiroz, Rayner M. L.; Charneau, Sebastien; Allain, Thibault; Florent, Isabelle; Grellier, Philippe. |
| Giardiasis, currently considered a neglected disease, is caused by the intestinal protozoan parasite Giardia duodenalis and is widely spread in human as well as domestic and wild animals. The lack of appropriate medications and the spread of resistant parasite strains urgently call for the development of novel therapeutic strategies. Host microbiota or certain probiotic strains have the capacity to provide some protection against giardiasis. By combining biological and biochemical approaches, we have been able to decipher a molecular mechanism used by the probiotic strain Lactobacillus johnsonii La1 to prevent Giardia growth in vitro. We provide evidence that the supernatant of this strain contains active principle(s) not directly toxic to Giardia but able... |
| Tipo: Text |
Palavras-chave: Giardiasis; Lactobacilli; Probiotics; Microbiota; Bile salts; Anti-giardial activity; Choloylglycine bile acid hydrolase. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00351/46211/45906.pdf |
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| Oliveira,Ronaldo Lopes; Pereira,José Carlos; Silva,Paulo Roberto de Carvalho e; Vieira,Ricardo Augusto Mendonça. |
| O experimento foi realizado para avaliar a cinética de degradação ruminal da matéria seca (MS), proteína bruta (PB) e fibra em detergente neutro (FDN) e os diferentes modelos para estimativa da taxa de passagem, em novilhos recebendo dietas com 15,0% de cama de frango, associada a dois níveis de suplemento à base de flora ruminal liofilizada de bovinos adultos (0 e 10 g/animal•dia). Quatro novilhos fistulados no rúmen e abomaso foram distribuídos em delineamento inteiramente casualizado. A taxa de passagem foi determinada por intermédio da técnica do cromo complexado à parede celular do feno de coast-cross, como indicador, e a degradabilidade, por intermédio da técnica do saco de náilon. Os modelos matemáticos foram avaliados por meio do estudo dos desvios... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cama de frango; Degradabilidade; Microbiota; Modelos matemáticos; Taxa de passagem. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35981999000400026 |
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| Melville,Priscilla Anne; Cogliati,Bruno; Mangiaterra,Maria Bárbara Baptista Cepellos Daruiz; Peres,Monica Ruz; Moura,Sílvio Carlos Alves; Matsuda,Letícia; Kim,Andrezza; Benites,Nilson Roberti. |
| O conhecimento da microbiota que compõe as diferentes áreas do organismo tem importância reconhecida para a compreensão de doenças infecciosas que podem acometer os avestruzes, embora se disponha de dados limitados acerca deste assunto na literatura. Foi objetivo deste estudo determinar as espécies de microrganismos (bactérias aeróbias e fungos) que compõem a microbiota normal de avestruzes. Para tanto, foram coletadas amostras de cloaca (N=50) e orofaringe (N=50) de avestruzes hígidos de um criadouro. Das amostras de cloaca, foram isolados Escherichia coli (76% das amostras positivas), Bacillus spp. (60%), Streptococcus spp. (18%), Staphylococcus coagulase-negativo (16%), Pseudomonas aeruginosa (8%), Rhodotorula spp. (8%), dentre outros microrganismos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avestruz; Cloaca; Microbiota; Orofaringe; Patologia aviária. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000600031 |
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| Carvalho,Lydston Rodrigues de; Farias,Luiz Macêdo; Nicoli,Jacques Robert; Silva,Maria Clara Fernandes; Corsino,Andrea Teresa Santos Meira; Lima,Luiz André de; Redondo,Rodrigo Aparecido Fernandes; Ferreira,Paulo César Peregrino; Pinto,Maria Elizabeth Bernardes Margutti. |
| Strict and facultative culturable anaerobic bacteria from the digestive tract of six American black vultures (Coragyps atratus Bechstein 1793) were isolated and identified. After capture, the birds received a non-contaminated diet for one week to eliminate possible allochthonous microorganisms. Then, specimens collected from tongue, stomach and intestines were weighed, submitted to decimal dilution in an anaerobic chamber, inoculated into culture media and incubated aerobically and anaerobically at 37ºC for enumeration, isolation and identification. Isolated bacteria were submitted to tests to detect possible antagonisms between them. The total bacterial population along the digestive tract ranged from 3.46 ± 0.39 log CFU/g in the stomach to 10.75 ± 0.37... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culture; Microbiota; Digestive tract; Antagonistic substance. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300007 |
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| Taherparvar,Gilaneh; Seidavi,Alireza; Asadpour,Leila; Payan-Carreira,Rita; Laudadio,Vito; Tufarelli,Vincenzo. |
| ABSTRACT The objective of this study was to determine whether the type of bedding materials (sand, wood shavings, and paper) and of two chemical amendments (lime and bentonite) could interfere with litter quality (moisture, pH, and total bacterial counts), thereby influencing also the growth performance and the development of intestinal traits and cecum microbiota of chickens. Two hundred and seventy male Ross 308 broiler chickens were randomly assigned into nine treatment groups with three replicates per treatment. Broiler productive parameters, relative weight of different intestinal segments, content of cecal total bacterial counts (total aerobic bacteria, Lactobacilli, and coliforms), as well as litter moisture, pH, and total aerobic bacteria and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bedding material; Broilers; Growth; Litter quality; Microbiota. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000500257 |
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| Nabizadeh,A; Golian,A; Hassanabadi,A; Zerehdaran,S. |
| ABSTRACT A total of 810 one-day-old, straight-run broilers were used to evaluate the effects of dietary nutrient density and feed additives included in the starter diet on their performance, intestinal microbiota, gut morphology, and immune response. A 3×3 factorial arrangement with three nutrient densities (100, 103.75 and 107.5%, as recommended) and three feed additives (no additives, 0.5 g/kg diet Maxi-Gen, and Maxi-Gen + Superzyme + Bio-Phytase at the rate of 0.5, 0.25 and 0.1 g/kg diet, respectively), fed from 1 to 10 d of age. Similar commercial corn-soy grower and finisher diets fed to all birds from 10-24 and 24-42 d of age, respectively. There was higher (p<0.05) body weight gain and lower (p<0.05) feed conversion ratio in chicks fed starter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid density; Intestinal morphology; Microbiota; Growth performance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000300509 |
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| Asmani, Katia; Petton, Bruno; Le Grand, Jacqueline; Mounier, Jerome; Robert, Rene; Nicolas, Jean-louis. |
| This study has two main objectives: (1) to implement a recycling aquaculture system (RS) for the larvae of the oyster Crassostrea gigas, and (2) to characterise the bacterial communities established in different compartments of this system. An RS with 25% fresh seawater addition per hour and another with no addition (0%) were compared with a flow-through system (FT). Larval survival was equivalent in RS and FT, but growth rate was 17% slower in RS than in FT. The physical chemical parameters remained stable, except for pH that decreased to 7.75 and salinity that increased to 37.5‰ in the RS 0%. In both systems, the cultivable bacteria were present in similar numbers in seawater (around 105 ml− 1) and in larvae (103 larva− 1) on day 15. Bacterial... |
| Tipo: Text |
Palavras-chave: RAS; Bivalve larvae; Microbiota; Pyrosequencing; Hatchery. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00346/45691/45311.pdf |
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| Nunes,Jaqueline Oliveira; Bertechini,Antonio Gilberto; Brito,Jerônimo Ávito Gonçalves de; Fassani,Édison José; Mesquita,Fabrício Rivelli; Makiyama,Letícia; Meneghetti,Camila. |
| The objective of this experiment was to evaluate the use of probiotic based upon Bacillus subtilis C-3102 (BS) in broiler diets containing or not conventional additive growth-promoter (AGP). A total of 1,824 one-day-old chicks of the Cobb-500 strain were used and distributed into 48 plots (1.50 × 2.00 m). A completely randomized design with four treatments and 12 repetitions was adopted. The treatments evaluated were: 1- Negative Control - AGP-free diet (NC); 2 - Positive Control, with AGP halquinol 30 mg/kg diet (PC); 3 - NC + BS (3x10(5) cfu/g diet); and 4 - PC + BS (3x10(5) cfu/g diet). The diets were on corn, soybean meal and meat and bone meal basis, formulated according to the nutrient allowances of the Strain Cobb Guide, following a feed program... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial; Meat poultry production; Microbiota; Nutrition. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001100012 |
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| Sediyama,Maria A. N.; Vidigal,Sanzio M.; Pedrosa,Marinalva W.; Pinto,Cláudia L. O.; Salgado,Luís T.. |
| Os principais objetivos deste trabalho, foram: avaliar o processo de fermentação do esterco sólido de suínos, fazer a caracterização física, química e microbiológica dos adubos orgânicos produzidos e identificar o tempo ideal de fermentação. Esterco sólido de suínos, proveniente da separação mecânica, foi arranjado em pilhas de 2,0 m³, sem cobertura e com cobertura com lona plástica e as pilhas foram revolvidas quinzenalmente e umedecidas sempre que necessário, com monitoramento diário da temperatura. Pela análise das características temperatura, relação C:N e pH, verificou-se que o tempo de fermentação de 65 dias foi suficiente para maturação do esterco com características químicas e físicas adequadas. Houve aumento na concentração de nutrientes, exceto... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dejeto de suínos; Estabilização; Nutrientes; Microbiota; Sanidade. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662008000600011 |
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| Registros recuperados: 54 | |
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