Ruminal Fluid Analysis
Mostrando 1-12 de 13 artigos, teses e dissertações.
-
1. Impact of high-energy diets on the rumen environment and digital cushion in confined cattle
RESUMO: O objetivo deste trabalho foi identificar alterações macroscópicas e microscópicas provocadas por dietas de alto valor energético no ambiente ruminal e casco de bovinos de corte (Bos taurus) em confinamento. Foram utilizadas 40 novilhas mantidas em confinamento, sendo divididas em 4 grupos experimentais: Grupo D1(controle) - 48% de volumoso e 52
Pesq. Vet. Bras.. Publicado em: 10/01/2020
-
2. Two enteral solutions with different chloride concentrations administered by naso-ruminal route for fluid therapy in adult cattle
RESUMO: Seis vacas holandesas adultas foram utilizadas neste estudo de hidratação. Todos os animais foram submetidos previamente a 24 horas de jejum hídrico e alimentar e submetidos a ambos os tratamentos de hidratação por oito horas, em delineamento transversal 6x2. Foram realizados dois tratamentos com soluções hipotônicas balanceadas (190 mOsm/L)
Cienc. Rural. Publicado em: 22/08/2019
-
3. Characterization of ruminal acidosis and initial phase of laminitis inducted by oligofructose in crossbred calves
RESUMO: Uma das formas de se estudar a laminite bovina é sua indução experimental por meio do fornecimento de grande quantidade de carboidrato de alta fermentação. O protocolo mais eficaz até o momento foi o uso de oligofrutose. Objetivou-se avaliar aspectos clínicos e histológicos dos dígitos de bovinos na indução experimental de acidose ruminal
Pesq. Vet. Bras.. Publicado em: 2019-02
-
4. Avaliação de antimicrobianos como promotores de crescimento via mistura mineral para bovinos de corte em pastejo / Antimicrobial growth promoters in mineral mixtures for grazing beef cattle
Antimicrobials which modifies rumen fermentation can improve economical efficiency of beef cattle grazing systems and reduce its possible impacts on the environment. It was conducted a series of experiments with the objective of evaluating free-choice mineral mixtures as an antimicrobial delivery system for grazing animals. On experiment 1, at Piracicaba-SP,
Publicado em: 2011
-
5. 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
-
6. Deslocamento do abomaso em bovinos no Estado de Pernambuco: fatores de risco, aspectos clínicos, laboratoriais e avaliação terapêutica
The continuous genetic selection for high milk production in association with greater digestive capacity and corporal depth increases the susceptibility for abomasopathies including abomasal displacement. The present work aimed to accomplish a retrospective study on abomasal displacement in 36 cattle attended at Bovine Clinic, Garanhuns Campus, Federal Rural
Publicado em: 2009
-
7. AvaliaÃÃo morfofisiolÃgica da absorÃÃo e metabolizaÃÃo de Ãcidos graxos volÃteis pelo proventrÃculo de bovinos. / Morphophysiologic evaluation of the absorption and metabolism of volatile fatty acids by bovine forestomach.
About 60% of volatile fatty acids (VFA) produced in reticulorumen are absorbed in this compartment. The other 40% pass with the fluid phase to the omasum and are absorbed before entering the duodenum. Two experiments were carried out to determine the absorption surfaces and the VFA absorption and metabolism capacity of the bovine forestomach compartments. In
Publicado em: 2007
-
8. Administration of standard and high doses of extruded grain with urea or prilled urea to cattle: a clinical, toxicological and laboratory exam analysis / Administração de doses padrão e alta de uréia extrusada ou granulada em bovinos: uma análise clínica-toxicológica e laboratorial
To compare the toxicity potential of prilled urea (G) and extruded grain with urea (E), both were administered all at once in two different doses, high (A; 0,5 g/kg BW) or standard (B; 0,22 g/kg BW), to 24 steers divided into four groups of six animals, which had never been fed nonprotein nitrogen compounds. For 240 min after the administration of urea the f
Publicado em: 2003
-
9. Efeitos da concentração de matéria seca e do uso de inoculante bacteriano-enzimático, na silagem de tifton 85 (Cynodon spp.), sobre a digestão de nutrientes, parâmetros ruminais e comportamento ingestivo em novilhos de corte em crescimento. / Effects of the dry matter concentration and use of bacterial-enzymatic inoculant, in tifton 85 (Cynodon spp.) silage, on the nutrient digestion, ruminal parameters and ingestive behavior in growing beef steers.
The present trial aimed to study the effects of forage wilting associated or not with a bacterial-enzymatic inoculant on ensiling Tifton 85 grass. Front panel of experimental silos (325 kg square wrapped bales) were daily scored for fungi development and weekly sampled for chemical composition analysis and particle chop length measurements. In a randomized 7
Publicado em: 2002
-
10. Analysis of peptide metabolism by ruminal microorganisms.
Methods were developed for the determination of oligoalanine and other short-chain peptides and peptide analogs in ruminal fluid by using reverse-phase high-pressure liquid chromatography. Chromatographic analysis of the breakdown of (Ala)3 and (Ala)4 in ruminal fluid in vitro revealed that the predominant mechanism of hydrolysis was a dipeptidyl peptidase-l
-
11. Adherence of the Gram-Positive Bacterium Ruminococcus albus to Cellulose and Identification of a Novel Form of Cellulose-Binding Protein Which Belongs to the Pil Family of Proteins†
The adherence of Ruminococcus albus 8 to crystalline cellulose was studied, and an affinity-based assay was also used to identify candidate cellulose-binding protein(s). Bacterial adherence in cellulose-binding assays was significantly increased by the inclusion of either ruminal fluid or micromolar concentrations of both phenylacetic and phenylpropionic aci
American Society for Microbiology.
-
12. Evidence for Production of a New Lantibiotic (Butyrivibriocin OR79A) by the Ruminal Anaerobe Butyrivibrio fibrisolvens OR79: Characterization of the Structural Gene Encoding Butyrivibriocin OR79A†
The ruminal anaerobe Butyrivibrio fibrisolvens OR79 produces a bacteriocin-like activity demonstrating a very broad spectrum of activity. An inhibitor was isolated from spent culture fluid by a combination of ammonium sulfate and acidic precipitations, reverse-phase chromatography, and high-resolution gel filtration. N-terminal analysis of the isolated inhib
American Society for Microbiology.