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Rumen responses to dietary supplementation with cashew nut shell liquid and its cessation in sheep

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Title: Rumen responses to dietary supplementation with cashew nut shell liquid and its cessation in sheep
Authors: Kang, Sungchhang Browse this author
Suzuki, Ryo Browse this author
Suzuki, Yutaka Browse this author →KAKEN DB
Koike, Satoshi Browse this author →KAKEN DB
Nagashima, Kyo Browse this author
Kobayashi, Yasuo Browse this author →KAKEN DB
Keywords: cashew nut shell liquid
methane
microbiota
rumen fermentation
sheep
Issue Date: Nov-2018
Publisher: John Wiley & Sons
Journal Title: Animal science journal
Volume: 89
Issue: 11
Start Page: 1549
End Page: 1555
Publisher DOI: 10.1111/asj.13100
PMID: 30182380
Abstract: Rumen responses to cashew nut shell liquid (CNSL) were evaluated in a feeding study. Four wethers were fed a hay and concentrate diet for 4 weeks (pre-CNSL period), and then fed the same diet supplemented with low and high levels of CNSL for 2 weeks each (L-CNSL and H-CNSL periods respectively). The diet was then reverted to the unsupplemented control diet for another 2 weeks (post-CNSL period). Rumen parameters were monitored in each feeding period. CNSL, regardless of the two levels tested, did not show any adverse effects on total short chain fatty acid concentration and dry matter digestibility in the rumen. Propionate proportion increased in the H-CNSL period, while methane production potential, acetate and butyrate proportions, viscosity, foam formation and its stability, and ammonia concentration decreased. Values of these parameters returned to those in the unsupplemented control period after cessation of CNSL supplementation. Clone library analysis of 16S rRNA genes revealed the following shifts in the H-CNSL period. For bacteria, Firmicutes was frequently detected, while Bacteroidetes and Spirochetes were not. For archaea, Methanobrevibacter wolinii was predominant. These results indicate that CNSL could be a methane inhibitor and propionate enhancer by altering the rumen microbial community.
Rights: This is the peer reviewed version of the following article: Kang, Sungchhang; Suzuki, Ryo; Suzuki, Yutaka; Koike, Satoshi; Nagashima, Kyo; Kobayashi, Yasuo (2018). Rumen responses to dietary supplementation with cashew nut shell liquid and its cessation in sheep. Animal science journal, 89(11), 1549-1555., which has been published in final form at https://doi.org/10.1111/asj.13100. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
URI: http://hdl.handle.net/2115/75990
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小林 泰男

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