Do different livestock dwellings on single grassland share similar faecal microbial communities?

Yang, Jie; Wang, Yanfen; Cui, Xiaoyong; Zhang, Yiming; Yu, Zhisheng

doi:10.1007/s00253-019-09849-1

Cited by 4 publications

(1 citation statement)

References 84 publications

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“…Fusarium spp. have been found in high relative abundances in cow and sheep feces (Yang, 2019), though we found no evidence that it is found in pig feces. Fusarium spp.…”

Section: Fungicontrasting

confidence: 90%

One or many? Multi-species livestock grazing influences soil microbiome community structure and antibiotic resistance potential

Mhuireach

Dietz²,

Gillett³

2022

Front. Sustain. Food Syst.

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Soil health has been highlighted as a key dimension of regenerative agriculture, given its critical importance for food production, carbon sequestration, water filtration, and nutrient cycling. Microorganisms are critical components of soil health, as they are responsible for mediating 90% of soil functions. Multi-species rotational grazing (MSRG) is a promising strategy for maintaining and improving soil health, yet the potential effects of MSRG on soil microbiomes are poorly understood. To address this knowledge gap, we collected soil microbial samples at three timepoints during the 2020 grazing season for 12 total paddocks, which were equally split into four different grazing treatments—cattle only, sheep only, swine only, or multi-species. Shallow shotgun metagenomic sequencing was used to characterize soil microbial community taxonomy and antibiotic resistome. Results demonstrated broad microbial diversity in all paddock soil microbiomes. Samples collected early in the season tended to have greater archaeal and bacterial alpha diversity than samples collected later for all grazing treatments, while no effect was observed for fungi or viruses. Beta diversity, however, was strongly influenced by both grazing treatment and month for all microbial kingdoms, suggesting a pronounced effect of different livestock on microbial composition. Cattle-only and swine-only paddocks were more dissimilar from multi-species paddocks than those grazed by sheep. We identified a large number of differentially abundant taxa driving community dissimilarities, including Methanosarcina spp., Candidatus Nitrocosmicus oleophilus, Streptomyces spp., Pyricularia spp., Fusarium spp., and Tunggulvirus Pseudomonas virus ϕ-2. In addition, a wide variety of antibiotic resistance genes (ARGs) were present in all samples, regardless of grazing treatment; the majority of these encoded efflux pumps and antibiotic modification enzymes (e.g., transferases). This novel study demonstrates that grazing different species of livestock, either separately or together, can impact soil microbial community structure and antibiotic resistance capacity, though further research is needed to fully characterize these impacts. Increasing the knowledge base about soil microbial community structure and function under real-world grazing conditions will help to construct metrics that can be incorporated into traditional soil health tests and allow producers to manage livestock operations for optimal soil microbiomes.

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“…Fusarium spp. have been found in high relative abundances in cow and sheep feces (Yang, 2019), though we found no evidence that it is found in pig feces. Fusarium spp.…”

Section: Fungicontrasting

confidence: 90%

One or many? Multi-species livestock grazing influences soil microbiome community structure and antibiotic resistance potential

Mhuireach

Dietz²,

Gillett³

2022

Front. Sustain. Food Syst.

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Herbivore Dung Promotes Plant Litter Decomposition Rate in a Semi-arid Grassland Ecosystem

Wang

Liu

et al. 2022

Ecosystems

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Unraveling aerobic cultivable cellulolytic microorganisms within the gastrointestinal tract of sheep (Ovis aries) and their evaluation for cellulose biodegradation

et al. 2022

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Anaerobic cellulolytic microbes in gastrointestinal tract (GT) of ruminants have been well-documented, however, knowledge of aerobic microbes with cellulolytic activities in ruminant GT is comparably limited. Here, we unraveled aerobic cultivable cellulolytic microbes in GT of Ujimqin sheep (Ovis aries) and evaluated the cellulolytic potential of promising isolates. Twenty-two strains were found to possess cellulose degrading potential by Congo-red staining and phylogenetic analysis of the 16S rDNA/ITS sequence revealed that all strains belonged to nine genera, i.e., Bacillus, Streptomyces, Pseudomonas, Lactobacillus, Brachybacterium, Sanguibacter, Rhizobium, Fusarium, and Aspergillus. Strains with high cellulolytic activities were selected to further evaluate the various enzyme activities on lignocellulosic alfalfa hay (Medicago sativa). Among them, isolate Bacillus subtilis RE2510 showed the highest potential of cellulose degradation considering the high endoglucanase (0.1478 ± 0.0014 IU ml-1), exoglucanase (0.1735 ± 0.0012 IU ml-1) and β-glucosidase (0.3817 ± 0.0031 IU ml-1) after 10-day incubation with alfalfa hay. A significant destruction effect of the cellulose structure and the attachment of B. subtilis RE2510 to the hay were also revealed by using scanning electron microscope. This study expands our knowledge of aerobic cellulolytic isolates from GT of sheep and also highlights their potential application as microbial additive in the aerobic process of cellulose bioconversion.

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Do different livestock dwellings on single grassland share similar faecal microbial communities?

Cited by 4 publications

References 84 publications

One or many? Multi-species livestock grazing influences soil microbiome community structure and antibiotic resistance potential

One or many? Multi-species livestock grazing influences soil microbiome community structure and antibiotic resistance potential

Herbivore Dung Promotes Plant Litter Decomposition Rate in a Semi-arid Grassland Ecosystem

Unraveling aerobic cultivable cellulolytic microorganisms within the gastrointestinal tract of sheep (Ovis aries) and their evaluation for cellulose biodegradation

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