Rumen Bacteria
Mostrando 1-12 de 250 artigos, teses e dissertações.
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1. Techniques for prevention and control of poisoning by sodium monofluoroacetate (MFA)-containing plants in ruminants
RESUMO: As plantas que contém monofluoroacetato (MFA) causam morte súbita associada ao exercício em ruminantes, e são responsáveis por grandes perdas na pecuária brasileira, estimadas em 500.000 mortes de bovinos anualmente. O controle e tratamento desse tipo de intoxicação, na maioria das vezes, não apresenta eficiência, visto que a evolução da
Pesq. Vet. Bras.. Publicado em: 02/12/2019
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2. In vitro study of postbiotics from Lactobacillus plantarum RG14 on rumen fermentation and microbial population
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
R. Bras. Zootec.. Publicado em: 08/11/2018
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3. Use of green fluorescent protein to monitor
Lactobacillus plantarum in the gastrointestinal tract of goatsThe experiment aimed to specifically monitor the passage of lactobacilli
in vivo after oral administration. The green fluorescent protein (GFP) gene was cloned downstream from the constitutive p32 promoter fromL. lactis subsp. cremoris Wg2. The recombinant expression vector, pLEM415-gfp-p32, was electroporated intoBraz. J. Microbiol.. Publicado em: 2015-09
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4. 2,6-Diaminopimelic acid (DAPA) in microbial protein quantification of heifers fed different forage sources
The objective of this study was to evaluate the flow of nitrogenous compounds, protein degradability, rumen degradation of total carbohydrate and organic matter and microbial efficiency in heifers subjected to diets containing corn silage, sugarcane or Tifton. For this purpose, the 2,6-diaminopimelic acid (DAPA) technique was adopted and analytical procedure
R. Bras. Zootec.. Publicado em: 2015-05
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5. A análise quantitativa de populações microbianas ruminais por qPCR em novilhas alimentadas com Leucaena leucocephala na Colômbia Tropical Dry Forest
A fermentação ruminal e metanogênisis são processos metabólicos vitais para os rumianteso e são realizados por populações microbianas afetados por fatores dietéticos, como a presença de metabólitos secundários, composição nutricional e degradabilidade. O objetivo deste estudo foi monitorar as populações de bactérias totais, metanogênicas e
Acta Sci., Anim. Sci.. Publicado em: 2015-04
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6. Quantificação da microbiota ruminal e produção de metano e gás carbônico de dietas com inclusão de glicerina
Objetivou-se com este estudo quantificar as bactérias e protozoários líquido-associados do rúmen e avaliar o potencial de produção dos gases CH4 e CO2 in vitro de dietas com inclusão de glicerina para ovinos. Duas dietas foram formuladas, na proporção volumoso:concentrado de 20:80, conforme a presença ou ausência de glicerina: G0 - controle sem gl
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2015-02
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7. Diversidade microbiana ruminal sob efeito de um preparado de anticorpos policlonais contra bactérias proteolíticas e produtoras de lactato em vacas alimentadas com três diferentes fontes energéticas
Nove fêmeas bovinas canuladas no rúmen alimentadas com diferentes fontes energéticas foram utilizadas para avaliar um preparado de anticorpos policlonais aviário contra bactérias ruminais específicas e monensina na diversidade da comunidade microbiana. O design experimental foi três quadrados latinos 3 x 3 distintos pela principal fonte energética na
Rev. bras. saúde prod. anim.. Publicado em: 2012-06
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8. Evaluation of whey fermented by Enterococcus faecium in consortium with Veilonella parvula in ruminant feeding
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
Revista Brasileira de Zootecnia. Publicado em: 2012-01
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9. Editorial
Diets formulated with protein sources presenting different resistance to ruminal degradation were compared by evaluating ruminal parameters, production and microbial efficiency and nutrients flow to the omasum in goats. Eight rumen cannulated non-lactating, non-pregnant goats were distributed in a 4 × 4 Latin square design with two replicates. Treatments co
Revista Brasileira de Zootecnia. Publicado em: 2011-10
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10. Simulation and validation of the ruminal digestion of carbohydrates in cattle from kinetic parameters obtained by in vitro gas production technique
This study aimed to validate the estimates of the ruminal degradation of total carbohydrates (TC), ruminal and total digestion of fibrous carbohydrates (FC) and microbial nitrogen flow in the abomasum evaluated by in vitro gas production technique (IVGP). Six ruminally and abomasally cannulated steers arranged in a double 3 × 3 latin square were used to mea
Revista Brasileira de Zootecnia. Publicado em: 2011-09
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11. Zeolita em dietas de bovinos de corte / Zeolite in diets for beef cattle
The objective was to evaluate the effect of adding different levels of zeolite on the intake and total and partial apparent digestibility of nutrients, ruminal parameters (pH and ammonia nitrogen), production of microbial nitrogen compounds, microbial efficiency and blood parameters (glucose and urea) in the diet of beef cattle. The treatments consisted of t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2010
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12. ADHERENCE AND BACTERIAL ENZYME ACTIVITY IN THE RUMEN: EFFECT OF PH AND CONCENTRATION OF SOLUBLE CARBOHYDRATES / ADERÊNCIA E ATIVIDADE FIBROLÍTICA BACTERIANA RUMINAL: EFEITO DO PH E DA CONCENTRAÇÃO DE CARBOIDRATOS SOLÚVEIS
In vitro assays were conducted to develop a method to estimate activity of bacterial enzymes in the rumen and the effect of changes in pH (5.5, 6.0, 6.5 and 7.0) and concentration of soluble carbohydrates (0, 100, 200 and 300 mg / dl) on adhesion to forage particles and ruminal bacterial fibrolytic activity. To evaluate the enzymatic extraction methods, samp
Publicado em: 2010