Cited by 48Ruminant Nutrition and Digestive PhysiologyAnimal Nutrition and PhysiologyGut microbiota and health

Ruminal metagenomic analyses of goat data reveals potential functional microbiota by supplementation with essential oil-cobalt complexes

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Lei, Zhaomin, Zhang, Ke, Li, Chao, Jiao, Ting, Wu, Jianping, Wei, Yubing, Tian, Kechuan, Li, Chong +6 more·2019·BMC Microbiology

Abstract

BACKGROUND: Essential Oils (EO) are complex mixtures of plant secondary metabolites that have been proposed as promising feed additives for mitigating methane and ammonia emissions. We have previously demonstrated that Essential Oil-Cobalt (EOC) supplementation resulted in increased average daily gain and improved phenotypes (cashmere fiber traits, carcass weight, and meat quality) when cashmere goats received supplementation at approximately 2 mg/kg of body weight. However, the ruminal microbiological effects of EO remain poorly understood with regard to the extent to which ruminal populations can adapt to EO presence as feed ingredients. The effects of varying levels of EO require additional study. RESULTS: In this study, we conducted metagenomic analyses using ruminal fluid samples from three groups (addition of 0, 52, and 91 mg) to evaluate the influence of dietary EOC supplementation on goat rumen bacterial community dynamics. EOC addition resulted in changes of ruminal fermentation types and the EOC dose strongly impacted the stability of ruminal microbiota. The Bacteroides sp. and Succinivibrio sp. type bacterial community was positively associated with improved volatile fatty acid production when the diet was supplemented with EOC. CONCLUSIONS: A clear pattern was found that reflected rapid fermentative improvement in the rumen, subsequent to butyrate metabolism and EOC based feed additives may affect rumen microbes to further improve feed conversion. This observation indicates that EOC can be safely used to enhance animal productivity and to reduce ammonia and waste gas emissions, thus positively impacting the environment.

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Authors
Lei, Z., Zhang, K., Li, C., Jiao, T., Wu, J., Wei, Y., Tian, K., Li, C., Tang, D., Davis, D. I., Casper, D. P., Jiang, H., Wang, X., & Wang, J.
Affiliations
  • Gansu Agricultural University (CN)
  • Northwest A&F University (CN)
  • Gansu Academy of Agricultural Sciences (CN)
  • Xinjiang Academy of Animal Science (CN)
  • Novo Nordisk Canada (Canada) (CA)
  • Laboratoire des applications Thérapeutiques des Ultrasons (FR)
Corresponding author
Wang, Jianfu
Venue
BMC Microbiology
Published
2019-02-04
Volume
19
Issue
1
Pages
30-30
ISSN
1471-2180 (ISSN-L)
OpenAlex
W2915235119
Cited by
48
References
43
Citations by year
2026: 3 · 2025: 8 · 2024: 5 · 2023: 9 · 2022: 8 · 2021: 10 · 2020: 3 · 2019: 2
FWCI
8.06
Type
journal article
Language
en
Open access
Locations
  • BMC Microbiology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Agro-scientific Research in the Public Interest (No. 201503134, 201303059)
  • China Agriculture Research System (No. CARS-39-18)
  • the major science and technology projects of Gansu Province (No. 17ZD2NC020)
  • Lanzhou Science & Technology Bureau (No. 2012-2-159)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
rumen microbiota, cashmere goats, feed additives, rumen fermentation, volatile fatty acids, Bacteroides, Succinivibrio, butyrate metabolism, methane mitigation, ammonia emissions, microbial community stability, dose-dependent effects
MeSH terms
Animals, Animal Feed, Cobalt, Digestion, Fatty Acids, Volatile, Fermentation, Goats, Male, Methane, Oils, Volatile, Rumen, Dietary Supplements, Metagenomics, Microbiota

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