Condensed tannin‐induced variations in the rumen metabolome and the correlation with fermentation characteristics in goats

Author:

Tian K. E.12ORCID,Aldian Dicky1ORCID,Luo Gan3ORCID,Sossou Armess1,Yayota Masato145ORCID

Affiliation:

1. The United Graduate School of Agricultural Science Gifu University Gifu Japan

2. Postdoctoral Workstation of Animal Science Southwest University Chongqing China

3. College of Animal and Veterinary Science Southwest Minzu University Chengdu China

4. Faculty of Applied Biological Sciences Gifu University Gifu Japan

5. Education and Research Center for Food Animal Health Gifu University Gifu Japan

Abstract

AbstractIn this study, we characterized the effects of CT dietary inclusion at 2% (wt/wt) dry matter on the goat rumen metabolome and fermentation characteristics. Barley (BA) and corn (CN) were separately used as basal grain for the control rations, and rations supplemented with CT were BACT and CNCT, respectively. The rations were tested using eight Japanese Shiba × Saanen goats in a replicated 4 × 4 Latin square arrangement (28 days for each period). Ruminal fluid was obtained on day 25 of each period, and ultra‐performance liquid chromatography–mass spectrometry (UPLC–MS) analysis was performed. Metabolites from BACT against BA and CNCT against CN were mostly associated with purine metabolism. Moreover, BACT against BA showed intensified biosynthesis of unsaturated fatty acids, and CNCT against CN resulted in strengthened amino acid metabolism. Furthermore, strong correlations were observed between rumen NH3‐N and the copy number of total bacteria with most of the differential metabolites. The present paper provides a better understanding of the relationship between the rumen metabolome and fermentation characteristics and supports a shift in concern about using CT as a strategy to manipulate rumen metabolism.

Publisher

Wiley

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