title: Preliminary study of the effects of condensed barley distillers soluble on rumen fermentation and plasma metabolites in Japanese Black cows.
abstract: In Japan, condensed barley distillers soluble (CBDS) is a widely known liquor byproduct that contains a high level of protein and is used as a supplementary protein feed for cattle. The present study evaluated the effects of CBDS feed on rumen fermentation and plasma metabolites in Japanese Black cows. Applying a replicated 3 × 3 Latin square design, nine cows were offered CBDS and hay (CBDS-t), soy bean meal and hay (Soybean-t) and only hay (Hay-t) over 35 days. We collected ruminal fluid and plasma just before feeding and at 3 h after feeding. The concentrations of propionate and butyrate in the rumen before feeding were lower in the CBDS-t than in the Soybean-t group (P < 0.05). However, after 3 h, the concentrations were higher in the CBDS-t than in the Soybean-t and Hay-t groups (P < 0.05). Although, there were no differences in the compositions (% mol) of propionate and butyrate in the rumen and the concentration of plasma β-hydroxybutyric acid before feeding between treatments, after 3 h they were significantly higher in the CBDS-t than in the Soybean-t and Hay-t groups (P < 0.05). These results indicate that feeding CBDS promotes rumen fermentation and butyrate metabolism.
authors.affiliation: Kuju Agricultural Research Center, Graduate School of Agriculture, Kyushu University, Kuju, Oita, Japan.|Livestock Research Institute, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Takeda, Oita, Japan.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Tsuruoka
authors.affiliation: Livestock Technology Office, Oita Prefectural Agriculture, Forestry and Fisheries Institute, Oita, Japan.
authors.forename: Hidenobu
authors.initials: H
authors.lastname: Kanamaru
authors.affiliation: Kuju Agricultural Research Center, Graduate School of Agriculture, Kyushu University, Kuju, Oita, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Takahashi
authors.affiliation: Kuju Agricultural Research Center, Graduate School of Agriculture, Kyushu University, Kuju, Oita, Japan.
authors.forename: Takafumi
authors.initials: T
authors.lastname: Gotoh
mesh_terms: D020155:3-Hydroxybutyric Acid / Q000097:blood; D000821:Animal Feed; D000818:Animals; D002087:Butyrates / Q000378:metabolism*; D002417:Cattle / Q000097:blood* / Q000378:metabolism*; D004032:Diet / Q000662:veterinary*; D004044:Dietary Proteins / Q000008:administration & dosage*; D019587:Dietary Supplements; D005260:Female; D005285:Fermentation; D001467:Hordeum; D011422:Propionates / Q000378:metabolism; D012417:Rumen / Q000378:metabolism*
chemical_list: D002087:Butyrates; D004044:Dietary Proteins; D011422:Propionates; D020155:3-Hydroxybutyric Acid
keywords: butyrate; cattle; condensed barley distillers soluble; rumen fermentation; β-hydroxybutyric acid