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| Registros recuperados: 52 | |
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| Caballero Cervantes, Yesenia. |
| El principal problema de salud en becerras de reemplazo son las diarreas provocadas por Escherichia coli enterotóxica. El uso de microorganismos pertenecientes al grupo de bacterias ácido lácticas (BAL) en la etapa de lactancia es benéfico para combatir la incidencia de diarreas e incrementar la ganancia de peso. Sin embargo, se ha reportado inconsistencia en los efectos benéficos de los productos comerciales. Por lo anterior, el objetivo de este estudio fue aislar y seleccionar BAL con potencial probiótico de mucosa oral de becerros lactantes, calostro y leche de vacas Holstein que puedan ser consideradas para el suministro de becerras en México. Para ello, se realizó el aislamiento en caldo Man Rogosa Sharp (MRS) y en agar MRS para la obtención de... |
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Palavras-chave: Becerras; Lactobacillus; Cepas; Resistencia; Heifers; Strains; Resistance; Ganadería; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2358 |
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| Hernández Cadena, Javier. |
| La melaza de caña de azúcar en el mercado internacional se comercializaba principalmente para la alimentación animal, actualmente tiene un mayor uso en la industria de la fermentación alcohólica y debido a su alto costo se ha venido limitado en la ganadería. Con el objetivo de establecer el nivel óptimo de melaza en un aditivo biológicamente activo (Vitafert), se estudió en diseño completamente al azar con arreglo factorial 3 niveles de melaza (5, 10 y 15%) y 8 tiempos de fermentación líquida (0, 1, 2, 3, 6, 9, 15 y 30 día), con 3 repeticiones por tratamientos para las variables bromatológicas y fermentativas. Para las variables microbiológicas se utilizó un diseño completamente al azar con 3 tratamientos (niveles de melaza) y 8 repeticiones por... |
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Palavras-chave: Melaza; Yoghurt; Lactobacilos; Levaduras; Vitafert; Probióticos; Molasses; Yogurt; Lactobacillus; Yeast; Probiotics; Maestría; Producción Agroalimentaria en el Trópico. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/345 |
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| Gourmelon, Michele; Caprais, Marie-paule; Mieszkin, Sophie; Marti, Romain; Wery, Nathalie; Jarde, E.; Derrien, Marc; Jadas-hecart, A.; Communal, P. Y.; Jaffrezic, A.; Pourcher, A. M.. |
| The microbiological quality of coastal or river waters can be affected by faecal pollution from human or animal sources. An efficient MST (Microbial Source Tracking) toolbox consisting of several host-specific markers would therefore be valuable for identifying the origin of the faecal pollution in the environment and thus for effective resource management and remediation. In this multidisciplinary study, after having tested some MST markers on faecal samples, we compared a selection of 17 parameters corresponding to chemical (steroid ratios, caffeine, and synthetic compounds), bacterial (host-specific Bacteroidales, Lactobacillus amylovorus and Bifidobacterium adolescentis) and viral (genotypes I-IV of F-specific bacteriophages, FRNAPH) markers on... |
| Tipo: Text |
Palavras-chave: Microbial source tracking; Faecal pollution; Bacteroidales; Bifidobacterium adolescentis; Lactobacillus; FRNA bacteriophages; Steroids; Caffeine. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00016/12710/9690.pdf |
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| Mosbah, Amor; Delavenne, Emilie; Souissi, Yasmine; Mahjoubi, Mouna; Jehan, Philippe; Le Yondre, Nicolas; Cherif, Ameur; Bondon, Arnaud; Mounier, Jerome; Baudy-floc'H, Michele; Le Blay, Gwenaelle. |
| Lactobacillus harbinensis K.V9.3.1Np was described as endowed with high antifungal activity. Most of the studies associated this activity to the produced organic acids, i.e., lactic acid, acetic acid, and hexanoic acid. The aim of this study was to purify and identify, other not yet described, antifungal molecules produced by L. harbinensis K.V9.3.1 Np when used in yogurt fermentation. Active compounds were extracted through several extraction processes using organic solvents and protein precipitation. The fractions of interest were purified using flash chromatography and preparative HPLC for specific characterization. The bioactive compounds identification was performed using Nuclear Magnetic Resonance and Mass Spectrometry. Activity tests against... |
| Tipo: Text |
Palavras-chave: Spermine; Polylactates; Lactobacillus; Extraction; Purification; Ms; Nmr. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00616/72773/72221.pdf |
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| Mesa,D; Lourenço,M; Souza,A; Bueno,A; Pereira,A; Sfeir,M; Santin,E. |
| ABSTRACT In broiler production, the litter is reused for consecutives flocks, and it is treated during down time between flocks to reduce its microbial load. Although covering the litter with a plastic canvas is a common litter treatment in the field, there is little scientific information available on its efficacy. The aim of this study was to evaluate the effects of covering broiler litter with a plastic canvas for eight days on litter microbiological, physical, and chemical parameters, and on the intestinal microbiota and immunity of broilers. In the first trial, reused litter from a previous flock was distributed into three treatments, with six replicates each: L1 (negative control, litter free from Salmonella Enteritidis (SE) and Eimeria maxima (EM)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Cytokines; Lactobacillus; Macrophages; Salmonella. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400563 |
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| Okamoto,AS; Andreatti Filho,RL; Lima,ET; Pereira,REP; Menconi,A; Rocha,TS; Marietto-Gonçalves,GA. |
| This study aimed at the antibody production by intestinal mucosa of broilers chicks were orally inoculated with Lactobacillus spp. at one and/or 21 days of age, and subsequently challenged with Salmonella enterica, subspecies enterica, serotype Enteritidis (S. Enteritidis). A total number of 288 drug-free broiler chicks was divided into 6 groups (groups A, B, C, D, E, and F), according to age at Lactobacillus spp. inoculation and SE challenge. The intestinal mucosa immune response was determined as the production of immunoglobulin A against S. Enteritidis, and evaluated by the Enzyme-Linked Immunosorbent Assay (ELISA) technique in intestinal washing fluid. Groups treated with Lactobacillus spp. presented higher IgA production only when the chicks were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicks; IgA; Lactobacillus; Salmonella. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000400009 |
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| Moura,Raquel Silva de; Saliba,Eloísa de Oliveira Simões; Almeida,Fernando Queiroz de; Lana,Ângela Maria Quintão; Silva,Vinícius Pimentel; Rezende,Adalgiza Souza Carneiro de. |
| The objective was to assess the effect of probiotic or phytase supplementation on dry matter intake (DMI), average daily gain (ADG) and feed conversion (FC) in 24 Mangalarga Marchador foals (16 males, 8 females), with 241.6 ± 23.2 days of age, and 216.7 ± 27.8 kg of body weight (BW). The study lasted 28 days, the first 23 days for diet and handling adaptation, and the last five days for feces collection. The basal diet consisted of Cynodon pasture and pelleted concentrate (1.2 kg/100 kg BW), as well as water and mineral salt ad libitum. Treatments groups were assigned as follows: basal diet (control); basal diet + 5 g/day of live yeast culture (10(9) CFU/g of S. cerevisiae); basal diet + 2 g/day of live bacteria (10(8) CFU/g of B. bifidum, E. faecium, L.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzymes; Horses; Lactobacillus; LIPE®; Pasture intake; Saccharomyces cerevisiae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600011 |
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| Izuddin,Wan Ibrahim; Loh,Teck Chwen; Samsudin,Anjas Asmara; Foo,Hooi Ling. |
| ABSTRACT An in vitro study was carried out to identify the effects of different inclusion levels of postbiotics from Lactobacillus plantarum RG14 on rumen fermentation profiles, gas production kinetics, and microbial population in rumen fluid collected from goats. Postbiotics were added at different levels (0, 0.3, 0.6, 0.9, and 1.2%) and incubated for 72 h with 200 mg dry matter (DM) of a substrate containing 60% Guinea grass and 40% commercial concentrate. The experiment was conducted in triplicate on different days with four replications per treatment. Rumen fermentation kinetics, pH, organic matter digestibility (OMD), volatile fatty acids (VFA), and microbial populations were investigated. Net gas production and gas production from the immediate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed additive; Fermentation profile; Lactobacillus; Ruminal kinetics; Rumen microorganisms; Volatile fatty acids. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100607 |
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| Ávila,Carla Luiza da Silva; Valeriano,Alexandre Rocha; Pinto,José Cardoso; Figueiredo,Henrique César Pereira; Rezende,Adauton Vilela de; Schwan,Rosane Freitas. |
| The aim of this research was to evaluate the effect of microbial additives containing heterofermentative or homofermentative bacteria on the chemical and microbiological characteristics of sugar cane (Saccharum spp) silages. Sugar cane was inoculated with Lactobacillus plantarum, L. paracasei, L. brevis or L. buchneri previously isolated from sugar cane silages or commercial inoculants containing L. buchneri or L. plantarum. Silages were produced in laboratory silos (10 × 60 cm PVC tubes) and evaluated 90 days after ensiling. A randomized complete design was used with eight treatments (seven inoculants and control - without inoculant) and three replications. The inoculation with bacteria affected lactic acid bacteria, yeast populations, volatile fatty... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetic acid; Ethanol; Heterofermentative bacteria; Lactic acid; Lactobacillus; Yeasts. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000100004 |
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| Vieira,Felipe do Nascimento; Jatobá,Adolfo; Mouriño,José Luiz Pedreira; Buglione Neto,Celso Carlos; Silva,Jairo Sousa da; Seiffert,Walter Quadros; Soares,Mariana; Vinatea,Luis Alejandro. |
| ABSTRACT The objective of this study was to evaluate the use of a diet supplemented with Lactobacillus plantarum on performance, immunological parameters, and bacterial microbiota of the digestive tract of white leg shrimp (Litopenaeus vannamei). We used six earthen ponds (1.2 ha) stocked with 14 shrimp m−2 (3 g mean weight). Three ponds received a diet supplemented with L. plantarum and three were maintained as control. The survival and feed efficiency of shrimp fed the supplemented diet were greater than that observed in shrimp fed the control diet, with survival values of 83.02±6.12% and 74.65±9.07% and feed efficiencies of 117.97±4.45% and 104.46±7.30%, respectively. However, we observed no differences in weight gain. The intestines of shrimp fed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immune response; Lactobacillus; Microbiology. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000500203 |
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| Leandro,Nadja Susana Mogyca; Oliveira,Adson Santa Cruz de; Gonzales,Elisabeth; Café,Marcos Barcellos; Stringhini,José Henrique; Andrade,Maria Auxiliadora. |
| Foram realizados três experimentos para avaliar o efeito de probiótico sobre o desempenho e a saúde intestinal de pintos. No primeiro experimento, foram utilizados 300 ovos embrionados, nos quais foram inoculados água (placebo) ou solução contendo 10 mg de probiótico (Enterococcus faecium, Lactobacillus casei e Lactobacillus plantarum, 10(6) ufc/g). No segundo experimento, avaliou-se a eficiência do fornecimento de probiótico (Bacillus subtilis) na ração em pintos desafiados com Salmonella Enteritidis no primeiro dia de vida. No terceiro experimento, o probiótico foi inoculado em ovos embrionados e os pintos foram desafiados com Salmonella Enteritidis na eclosão. O delineamento foi em bloco casualizado, nos três experimentos. Foram avaliados desempenho,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desempenho; Digestibilidade; Frangos; Lactobacillus; Ovo. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000700017 |
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| Bernardes,Thiago Fernandes; Reis,Ricardo Andrade; Amaral,Rafael Camargo do; Siqueira,Gustavo Rezende; Roth,Anna Paula de Toledo Piza; Roth,Marcella de Toledo Piza; Berchielli,Telma Teresinha. |
| Com o objetivo de avaliar as perdas em silagem de capim-marandu produzidas com aditivos foram desenvolvidos dois experimentos. No experimento 1, objetivou-se conhecer o perfil de fermentação e a estabilidade aeróbia de quatro silagens: 1) forragem não tratada (Controle); 2) tratada com Lactobacillus plantarum e Propionibacterium; 3) tratada com Lactobacillus buchneri; e 4) tratada com 0,1% de benzoato de sódio. No experimento 2, foram utilizados nove novilhos castrados Nelore (PC de 350 ± 38,9 kg), alocados em três quadrados latinos 3 x 3 para avaliação do consumo e da digestibilidade das rações contendo 85,4% das seguintes silagens de capim-marandu: 1) controle; 2) controle com L. plantarum, Pediococcus acidilactici + enzimas fibrolíticas; e 3) tratamento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Consumo; Inoculante; Lactobacillus; Perdas. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001000003 |
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| Sánchez,Lilian; Vichi,J; Llanes,Marisleidys; Castro,Erica; Soler,Dulce M; Espinosa,Ivette; Kociubinski,G.L; Ferreira,Celia L. |
| El uso de los lactobacilos como probióticos en los últimos años cobra un interés creciente debido a sus propiedades benéficas en animales y humanos. Con el objetivo de aislar y caracterizar cepas vaginales de Lactobacillus spp., mediante pruebas in vitro para considerar su posterior aplicación como probiótico se aislaron 24 cepas identificadas a nivel de grupo por el perfil de fermentación de carbohidratos y la producción de gas a partir de la glucosa. A todas las cepas se les determinó su estabilidad de crecimiento a pH ácidos y a diferentes temperaturas. De ellas se seleccionaron 9 que presentaron las mejores características como candidatos a probióticas por sus resultados en las pruebas de hidrofobicidad frente a solventes orgánicos como tolueno, xileno... |
| Tipo: Journal article |
Palavras-chave: Lactobacillus; Probiótico. |
| Ano: 2011 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2011000300003 |
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| Meyer,Paula Marques; Pires,Alexandre Vaz; Bagaldo,Adriana Regina; Simas,José Manuel Correia de; Susin,Ivanete. |
| A possibilidade de proibição do uso de antibióticos como promotores de crescimento para animais de produção tem feito com que consumidores e produtores procurem por alternativas. Os probióticos têm se mostrado promissores em cumprir este papel e por esta razão, setenta e nove bezerros da raça Holandesa foram utilizados para avaliar a adição de probiótico constituído por Lactobacillus acidophilus, Enterococcus faecium e Saccharomyces cerevisiae ao aleitamento. Os animais foram distribuídos em um delineamento inteiramente casualizado, com arranjo fatorial de tratamentos 3x2, correspondendo ao tipo de dieta líquida (leite integral, sucedâneo ao 3° dia ou sucedâneo ao 15° dia de idade, com adição ou não de probiótico). O período experimental foi do nascimento... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactobacillus; Substituto do leite; Ganho de peso; Bezerro leiteiro; Bovino. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162001000200001 |
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| Registros recuperados: 52 | |
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