| competitive exclusion of salmonella enterica serovar enteritidis by lactobacillus crispatus and clostridium lactatifermentans in a sequencing fed-batch culture. | competitive exclusion of salmonella enterica serovar enteritidis by a mixed culture of lactobacillus crispatus and clostridium lactatifermentans was studied in a sequencing fed-batch reactor mimicking the cecal ecophysiology of broiler chickens. growth of serovar enteritidis was inhibited by a mixed culture of l. crispatus and c. lactatifermentans at ph 5.8 but not by a monoculture of l. crispatus at the same ph. moreover, experiments performed at ph 7.0 did not show growth inhibition of serovar ... | 2002 | 11823190 |
| clostridium lactatifermen tans sp. nov., a lactate-fermenting anaerobe isolated from the caeca of a chicken. | an obligately anaerobic, lactate-fermenting bacterium (strain g17t) was isolated from the caeca of a 31-day-old chicken. grown at neutral ph, cells were rod-shaped with tapered ends and showed no motility and no spore formation. electron microscopy showed that the cell walls had a gram-positive structure. the dna g+c content was 44.6 mol %. based on 16s rdna sequence analysis, strain g17t was considered to belong to the low-g+c-content gram-positive bacteria of cluster xiv subgroup b and most cl ... | 2002 | 12054258 |
| effect of administration of lactobacillus crispatus, clostridium lactatifermentans and dietary lactose on the development of the normal microflora and volatile fatty acids in the caeca of broiler chicks. | 1. lactobacillus crispatus and clostridium lactatifermentans, both isolated from the caeca of chickens, grown together in an in vitro model system are able to ferment lactose to acetate and propionate. in this study, the capabilities of these organisms were studied in vivo. 2. the effect on concentrations of volatile fatty acids and lactate, together with the development of some bacterial groups in the caeca of chicks, was studied after oral inoculation with l. crispatus and c. lactatifermentans ... | 2002 | 12365511 |
| identification and characterization of potential performance-related gut microbiotas in broiler chickens across various feeding trials. | three broiler feeding trials were investigated in order to identify gut bacteria consistently linked with improvements in bird performance as measured by feed efficiency. trials were done in various geographic locations and varied in diet composition, broiler breed, and bird age. gut microbial communities were investigated using microbial profiling. eight common performance-linked operational taxonomic units (otus) were identified within both the ilea (180, 492, and 564-566) and ceca (140-142, 2 ... | 2011 | 21742925 |