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Effect of cattle breed and basal diet on digestibility, rumen bacterial communities, and eating and rumination activity
(2020-04-25)
The objectives of this study were to compare ruminal total tract digestibility, bacterial communities, and eating and rumination activity between Holstein and Angus steers fed grain- or forage-based diets. Six Holstein ...
Studies on bacterial community composition are affected by the time and storage method of the rumen content
(Public Library of Science, 2017-04-28)
The objective of this study was to investigate three storage methods and four storage times
for rumen sampling in terms of quality and yield of extracted metagenomic DNA as well as
the composition of the rumen bacterial ...
Effects of Lactobacillus buchneri as a silage inoculant and as a probiotic on feed intake, apparent digestibility and ruminal fermentation and microbiology in wethers fed low-dry-matter whole-crop maize silage
(2018-03-01)
Lactobacillus buchneri was investigated as a silage inoculant and as a probiotic on feed intake, apparent digestibility, and ruminal fermentation and microbiology in wethers fed low-dry-matter (DM) whole-crop maize silage. ...
Effect of pre- weaning diet on the ruminal archaeal, bacterial, and fungal communities of dairy calves
(Frontiers in Microbiology, 2019)
Ruminal Fermentation Pattern, Bacterial Community Composition, and Nutrient Digestibility of Nellore Cattle Submitted to Either Nutritional Restriction or Intake of Concentrate Feedstuffs Prior to Adaptation Period
(2020-07-31)
Beef cattle are key contributors to meat production and represent critical drivers of the global agricultural economy. In Brazil, beef cattle are reared in tropical pastures and finished in feedlot systems. The introduction ...
Long-Term Effects of Dietary Supplementation with Olive Oil and Hydrogenated Vegetable Oil on the Rumen Microbiome of Dairy Cows
(MDPI, 2021)
Dietary lipids increase energy density in dairy cow diets and in some cases can increase beneficial fatty acids (FA) in milk and dairy products. However, the degree of FA saturation may affect the rumen microbiome. The ...
Ruminal bacterial community changes during adaptation of goats to fresh alfalfa forage.
(Editorial Livestock Science, 2016-08-02)
ARTÍCULO PUBLICADO EN REVISTA EXTERNA. Using culture-independent molecular approaches, we studied the bacterial population changes in the rumen of goats abruptly converted from alfalfa hay to fresh alfalfa diet. Administration ...
Ruminal bacterial community changes during adaptation of goats to fresh alfalfa forage
(Elsevier Science, 2016-09)
Using culture-independent molecular approaches, we studied the bacterial population changes in the rumen of goats abruptly converted from alfalfa hay to fresh alfalfa diet. Administration of fresh forage with significantly increased soluble nitrogen and soluble protein nitrogen resulted in frothy bloat. Changes of the bacterial composition of rumen were monitored using DGGE analysis of 16S rDNA gene amplicons and quantitative PCR method. As the diet changed, the bacterial population of Bacteroidetes and γ-Proteobacteria decreased, even if animals have not shown signs of frothy bloat. The most severely bloated animals showed an increase of Bacteroidetes phylum. Lactobacillus/Streptococcus group belonging to Firmicutes phylum decreased in response to transferring the animals from hay to a fresh forage-based diet, and did not achieve the values observed at the beginning of the experiment. In summary, changes in the diet and subsequent frothy bloat occurrence produce long-lasting changes in the structure of the microbial community and may be associated with a specific bacterial population belonging to the Bacteroidetes phylum....