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| Registros recuperados: 12 | |
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| Oliveira,Juliana Silva de; Queiroz,Augusto César de; Mantovani,Hilário Cuquetto; Bayão,Geraldo Fábio Viana; Detmann,Edenio; Santos,Edson Mauro; Silva,Thiago Carvalho da. |
| The objective of this study was to evaluate the whey fermented by Enterococcus faecium in consortium with Veilonella parvula on the in vitro growth of ruminal bacteria and as a supplement in the cattle diet. In the in vitro experiment, a randomized design, with the following combinations was used: ruminal bacteria; ruminal bacteria and inactive whey; ruminal bacteria and active whey; and active whey. In the in vivo experiment, five fistulated Zebu Holstein-Zebu crossbred heifers were distributed in a 5 × 5 Latin square. Supplements were formulated without the addition of whey, with the addition of two levels of unfermented whey (2.5 and 5 L/day) or two levels of fermented whey (2.5 and 5 L/day). A positive effect of the whey fermentation was detected on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactate; Organic acids; Propionic acid; Rumen. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100025 |
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| Oliveira,Juliana Silva de; Queiroz,Augusto César de; Mantovani,Hilário Cuquetto; Melo,Marcelo Rodrigues de; Detmann,Edenio; Santos,Edson Mauro; Bayão,Geraldo Fábio Viana. |
| The objective of this work was to evaluate the effect of the levels of lactic and propionic acids on in vitro fermentation of ruminal microorganisms. In experiment 1, the levels, in a total of 12 were the following: addition of 0 (control 1), 50, 100, 150, 200 and 250 mM of lactic acid and 0 (control 2), 50, 100, 150, 200 and 250 mM of propionic acid, respectively, in incubation flasks, which contained ruminal inoculum, glucose and synthetic culture medium, with two repetitions for each combination. In experiment 2, the combinations, in a total of 4, were the following: presence of 12 and 24 mM of propionic acid and 0 mg of glucose, respectively; presence of 12 and 24 mM of propionic acid and 40 mg of glucose, respectively, to the incubation flasks which... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactate; Food additive; Propionate; Ruminal manipulation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500025 |
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| Rigueira,João Paulo Sampaio; Pereira,Odilon Gomes; Ribeiro,Karina Guimarães; Mantovani,Hilário Cuquetto; Agarussi,Mariele Cristina Nascimento. |
| The objective of this study was to evaluate the fermentation profile, chemical composition and microbial population and losses in the silages of signalgrass and Mombasa grass fertilized with the following levels of nitrogen (N): 0, 30, 60 and 90 kg/ha. The grasses were harvested at 70 days of regrowth, chopped and then ensiled in laboratory silos that had 20 kg of capacity and a snap-top cover and were fitted with Bunsen valves. Before ensiling, samples of the plants were used for the isolation and identification of lactic acid bacteria (LAB) in epiphytic microbiota. The design adopted was a 4 × 2 factorial arrangement, with four doses of N and two forage species, in a completely randomized design, with four replicates. The predominant species of LAB was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Effluent; Lactic acid bacteria; PH. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000900002 |
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| Oliveira,Juliana Silva de; Queiroz,Augusto César de; Lana,Rogério de Paula; Mantovani,Hilário Cuquetto; Generoso,Rafaela Antônia Ramos. |
| Foram estudados os efeitos in vitro dos inibidores monensina e própolis sobre a fermentação ruminal de aminoácidos. Utilizou-se líquido ruminal de um novilho em pastejo, acrescentado de solução de tripticase, em três tratamentos (controle, monensina e própolis). Na 1ª fase do experimento, foram feitas transferências diárias de inóculos para novos tubos com os mesmos tratamentos até o 10º dia e, no 11º dia, iniciou a 2ª fase, efetuando-se as combinações dos tratamentos da 1ª fase (C, M, P), no total de nove, com transferência diária e incubação por mais nove dias. Do 1º ao 10º dia de incubação (1ª fase), o ionóforo e a própolis não aumentaram significativamente a produção de amônia em comparação ao controle. A própolis foi mais eficiente em dimiuir a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amônia; Bactéria; Monensina; Própolis; Rúmen. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982006000100035 |
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| Carvalho,Isabela Pena Carvalho de; Detmann,Edenio; Paulino,Mário Fonseca; Mantovani,Hilário Cuquetto; Valadares Filho,Sebastião de Campos; Gomes,Daiany Iris; Costa,Viviane Aparecida Carli. |
| Two experiments were carried out to evaluate the effect of supplementation with different nitrogenous compounds on the activities of carboxymethil cellulase (CMCase) and glutamate dehydrogenase (GDH). In the first experiment, four treatments were evaluated in vitro: cellulose, cellulose with casein, cellulose with urea, and cellulose with casamino acids. After 6, 12 and 24 hours of incubation, CMCase and GDH activity, pH, and concentrations of ammonia nitrogen (AN) and microbial protein were measured. In the three incubation periods, the concentration of AN was higher when urea was used as a supplemental source of nitrogen. The activity of CMCase was higher with the addition of urea and casamino acids when compared with the control and the casein... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fibrolytic enzymes; Nitrogen assimilation; Protein effect; Rumen microbiology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300031 |
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| Carvalho,Isabela Pena Carvalho de; Detmann,Edenio; Mantovani,Hilário Cuquetto; Paulino,Mário Fonseca; Valadares Filho,Sebastião de Campos; Costa,Viviane Aparecida Carli; Gomes,Daiany Iris. |
| The objective of this study was to evaluate the effects of supplementation with different sources of energy and nitrogenous compounds on the in vitro growth and production of bacteriocin of lactic acid bacteria. Incubations were performed by using ruminal fluid from a rumen-fistulated Holstein-Zebu steer. The animal was kept on a Brachiaria decumbens pasture receiving 200 g/day of supplemental crude protein. Substrates and inoculum were placed in glass flasks considering eight treatments: cellulose, cellulose and casein, cellulose and soy peptone, cellulose and urea, starch, starch and casein, starch and soy peptone and starch and urea. Successive incubations were conducted to select microorganisms according to the energy sources and nitrogenous compounds.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteriocin; Cellulose; Protein effect; Rumen microbiology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000600014 |
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| Bezerra,Higor Fábio Carvalho; Oliveira,Juliana Silva de; Santos,Edson Mauro; Queiroz,Augusto César de; Mantovani,Hilário Cuquetto; Pinho,Ricardo Martins Araujo; Oliveira Junior,Jurandir Queiroz de; Costa,Elizabete Cristina Batista da. |
| The objective of this research was to evaluate the effect of whey fermented by Enterococus faecium in consortium with Veilonella parvula in vitro on ruminal microorganisms in different substrates, with or without monensin. The first experiment was carried out in a completely randomized design, in a 6 × 3 factorial arrangement (six substrates × three whey levels) with two replicates. In experiment two, a 2 × 3 × 4 factorial arrangement (with and without monensin, three foods and four levels of fermented whey) was used, in a randomized design with four replicates, totaling 24 treatments. There was no interaction among the wheys and the substrates in the variable for pectin, starch, and carboxymethyl cellulose. There was a greater growth of amylolytic and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Fermentation; Microbial protein; Monensin; Rumen; Ruminal pH. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000500259 |
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| Costa,Viviane Aparecida Carli; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Paulino,Mário Fonseca; Henriques,Lara Toledo; Mantovani,Hilário Cuquetto. |
| Objetivou-se avaliar o efeito da suplementação protéica e/ou com carboidratos sobre a degradação ruminal da fibra em detergente neutro (FDN) de forragem de baixa qualidade. Simulou-se a suplementação de bovinos em terminação, sob pastejo em Brachiaria decumbens de baixa qualidade, durante o período seco (70% de forragem e 30% de concentrado, com base na matéria seca). O concentrado referente ao tratamento base foi formulado de forma a apresentar 30% de proteína bruta, utilizando-se amido, como componente energético, e caseína, como componente protéico. Os tratamentos foram construídos a partir da omissão do fornecimento das fontes protéica e/ou energética do suplemento, associando-se, ainda, a substituição total do amido por pectina. Desta forma, seis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capim-braquiária; Degradação ruminal; Modelos matemáticos; Suplementos. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008000300015 |
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| Ribeiro,Marinaldo Divino; Pereira,José Carlos; Queiroz,Augusto César de; Bettero,Vitor Pereira; Mantovani,Hilário Cuquetto; Silva,Cássio José da. |
| This study aimed to evaluate the effect of intraruminal infusion of propionic acid (RPA) associated to two (80:20 and 60:40) forage:concentrate ratios (FCR), for young bulls. Four Holstein × Zebu crossbred young bulls with average age of 7 months and 160 kg of body weight (BW) were distributed to a 4 × 4 Latin square design. A total mixed ration, isonitrogenous diets, was ad libitum fed to animals. The propionic acid was obtained by fermentation of reconstituted milk whey by the consortium of bacteria Enterococcus sp. and Veillonella sp.. Daily and along with the supply of solid feeds, 2 L of the compound containing propionic acid were intrainfused in the rumen. There was no RPA × FCR interaction for the intake of nutrients, except for total digestible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteria ruminal; Digestibility; Feeding; Milk whey; Organic acids. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000500023 |
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| Zorzi,Karina; Detmann,Edenio; Queiroz,Augusto César de; Paulino,Mário Fonseca; Mantovani,Hilário Cuquetto; Bayão,Geraldo Fábio. |
| The objective of this work was to evaluate the in vitro degradation dynamics of neutral detergent fiber (NDF) of high-quality tropical forage according to supplementation with different nitrogenous compounds sources. A signal grass sample harvested during rainy season was used as basal forage. Casein was used as true protein source and urea:ammonium sulfate (U:AS, 9:1) mixture (urea) as non-protein nitrogen source. The first three supplements were the addition of 0.5, 1.0 and 2.0 mg of casein per mL of final incubation solution. The urea was added to the same amount of protein supplied by equivalent levels 0.5, 1.0 and 2.0 mg/mL of casein. In total, seven treatments were evaluated, including a control (only grass). The supplements were evaluated in a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia nitrogen; Casein; Signal grass; Supplement; Urea. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000500025 |
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| Registros recuperados: 12 | |
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