Impact of subacute ruminal acidosis (SARA) adaptation on rumen microbiota in dairy cattle using pyrosequencing

Mao, Shengyong; Zhang, R.Y.; Wang, D.S.; Zhu, Weiyun

doi:10.1016/j.anaerobe.2013.08.003

Cited by 216 publications

(265 citation statements)

References 38 publications

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“…Similar to previous studies (Fernando et al, 2010; Mao et al, 2013; Jami et al, 2014; Pitta et al, 2014a), we also observed that Firmicutes and Bacteroidetes were the predominant bacterial phyla in the ruminal ecosystem. The Firmicutes-to-Bacteroidetes ratio has traditionally been considered as a biomarker for metabolic potential of the gut microbiota and is known to modulate host metabolism, physiology, and health (Mariat et al, 2009; Tilg and Kaser, 2011; Clemente et al, 2012).…”

Section: Discussionsupporting

confidence: 92%

Linking Peripartal Dynamics of Ruminal Microbiota to Dietary Changes and Production Parameters

et al. 2017

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During the peripartal period, proper acclimatization of rumen microorganisms to variations in nutritional management can facilitate the transition into lactation. This study characterized the temporal shifts in the composition and functional properties of ruminal microbiota during the periparturient period in dairy cows subjected to a typical two-tiered feeding management approach. Ruminal digesta samples from eight multiparous fistulated Holstein cows were collected on days −14, −7, 10, 20, and 28 relative to parturition. High-throughput Illumina sequencing of the V4 region of the bacterial 16S rRNA gene revealed distinct clustering patterns between pre- and postpartal ruminal microbiota. During the prepartal period, when the voluntary dry matter intake was lower, we observed strikingly lower inter-animal variations in the composition of the ruminal microbiota. Genera Ruminococcus and Butyrivibrio, which are considered major fibrolytic rumen dwellers, were overrepresented in the prepartal rumen ecosystem. In contrast, increased postpartal voluntary DMI was associated with enrichment of bacterial genera mainly consisting of proteolytic, amylolytic, and lactate-producer species (including Prevotella, Streptococcus, and Lactobacillus). These, together with the postpartal enrichment of energy metabolism pathways, suggested a degree of acclimatization of the ruminal microbiota to harvest energy from the carbohydrate-dense lactation diet. In addition, correlations between ruminal microbiota and parameters such as milk yield and milk composition underscored the metabolic contribution of this microbial community to the cow's performance and production.

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Section: Discussionsupporting

confidence: 92%

Linking Peripartal Dynamics of Ruminal Microbiota to Dietary Changes and Production Parameters

et al. 2017

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“…Except for few studies trying to link the rumen microbiota directly to the ruminant phenotypes (milk composition, subacute ruminal acidosis, methane emission and feed efficiency), most of the studies evaluated impact of the rumen fermentation on host performance [55] and knowledge is lacking on direct impact of the rumen microbiota on host performance. In addition, linkages between ruminal subacute acidosis and the rumen microbiota are emerging [23, 24, 60, 61]; however, once again causal effects are not clear.…”

Section: Impact Of the Rumen Microbiota On Hostmentioning

confidence: 99%

Understanding host-microbial interactions in rumen: searching the best opportunity for microbiota manipulation

Malmuthuge

Guan

2017

J Animal Sci Biotechnol

150

130

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Ruminants utilize a wide variety of dietary substrates that are not digestible by the mammals, through microbial fermentation taking place in the rumen. Recent advanced molecular based approaches have allowed the characterization of rumen microbiota and its compositional changes under various treatment conditions. However, the knowledge is still limited on the impacts of variations in the rumen microbiota on host biology and function. This review summarizes the information to date on host-microbial interactions in the rumen and how we can apply such information to seek the opportunities to enhance the animal performance through manipulating the rumen function.

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“…Changes in ruminal pH and rumen microbial community were observed markedly by acute and short‐term change in feeding, which indicated ruminal adaptation (Mao et al . 2013). However, further research is needed to reveal the relation between ruminal pH and microbial community.…”

Section: Changes In Ruminal Ph Vfa and Microbiota Composition In Catmentioning

confidence: 99%

Pathophysiological evaluation of subacute ruminal acidosis (SARA) by continuous ruminal pH monitoring

Satō

2015

Animal Science Journal

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Evaluation of the radio‐transmission pH‐measurement system for monitoring the ruminal pH and subacute ruminal acidosis (SARA) in cattle is described. This is done in order to reveal the possible application of this system for detection and pathophysiological research of SARA by continuous ruminal pH measurement. The possibility of using this system for assessment of the ruminal pH in SARA cattle, and the presence of negative correlation between the ruminal pH and ruminal temperature in heathy and SARA cattle were determined. In addition, the 16S rRNA gene pyrosequencing analysis showed that the ruminal microbial community was simpler in SARA cattle, and the bacterial numbers in SARA cattle were lower than those in healthy hay‐fed cattle. Concentrate feeding might have reduced the diversity of the ruminal microbial community. Changes in the ruminal microbial community of SARA cattle might be related to the changes in ruminal pH followed by the decrease in the number of some bacteria. Continuous monitoring of the ruminal pH using the radio‐transmission pH‐measurement system would be applied for detection and prevention of SARA in the field and pathophysiological research of SARA, including ruminal zymology and bacteriology, which have been determined previously by sampling of the ruminal fluid and measuring of ruminal pH.

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Impact of subacute ruminal acidosis (SARA) adaptation on rumen microbiota in dairy cattle using pyrosequencing

Cited by 216 publications

References 38 publications

Linking Peripartal Dynamics of Ruminal Microbiota to Dietary Changes and Production Parameters

Linking Peripartal Dynamics of Ruminal Microbiota to Dietary Changes and Production Parameters

Understanding host-microbial interactions in rumen: searching the best opportunity for microbiota manipulation

Pathophysiological evaluation of subacute ruminal acidosis (SARA) by continuous ruminal pH monitoring

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