Internal Medicine : Effects of a Bacteria-Based Probiotic on Ruminal pH, Volatile Fatty Acids and Bacterial Flora of Holstein Calves

DOI Web Site Web Site PubMed 被引用文献4件 参考文献34件
  • QADIS Abdul Qadir
    United Graduate School of Veterinary Science, Gifu University, Gifu 501–1193, Japan Faculty of Veterinary Science, Kabul University, Jamal Mina Kabul, Afghanistan
  • GOYA Satoru
    Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate 020–8550, Japan
  • IKUTA Kentaro
    Awaji Agricultural Technology Center, Minami-Awaji, Hyogo 656–0442, Japan
  • YATSU Minoru
    Miyagi Prefectural Federation of Agricultural Mutual Aid Associations, Shiroishi, Miyagi 989–0731, Japan
  • KIMURA Atsushi
    United Graduate School of Veterinary Science, Gifu University, Gifu 501–1193, Japan
  • NAKANISHI Shusuke
    Miyarisan Pharmaceutical Research Laboratory, Nagano 389–0682, Japan
  • SATO Shigeru
    United Graduate School of Veterinary Science, Gifu University, Gifu 501–1193, Japan Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate 020–8550, Japan

書誌事項

タイトル別名
  • Effects of a Bacteria-Based Probiotic on Ruminal pH, Volatile Fatty Acids and Bacterial Flora of Holstein Calves

この論文をさがす

抄録

Twelve ruminally cannulated Holstein calves (age, 12 ± 3 weeks) were used to identify the effect of a probiotic comprised of Lactobacillus plantarum, Enterococcus faecium and Clostridium butyricum on ruminal components. The calves were adapted to a diet containing a 50% high-concentrate (standard diet) for 1 week, and then, the probiotic was given once daily for 5 days (day 1–5) at 1.5 or 3.0 g/100 kg body weight to groups of four calves each. Four additional calves fed the standard diet without probiotic served as the corresponding control. Ruminal pH was measured continuously throughout the 15-day experimental period. Ruminal fluid was collected via a fistula at a defined time predose and on days 7 and 14 to assess volatile fatty acid (VFA), lactic acid and ammonia-nitrogen concentrations, as well as the bacterial community. The probiotic at either dose improved the reduced 24-hr mean ruminal pH in calves. The circadian patterns of the 1 hr mean ruminal pH were identical between the probiotic doses. In both probiotic groups, ruminal lactic acid concentrations remained significantly lower than that of the control. Probiotic did not affect ruminal VFA concentrations. L. plantarum and C. butyricum were not detected in the rumen of calves given the high-dose probiotic, whereas Enterococcus spp. remained unchanged. These results suggest that calves given a probiotic had stable ruminal pH levels (6.6–6.8), presumably due to the effects of the probiotic on stabilizing rumen-predominant bacteria, which consume greater lactate in the rumen.

収録刊行物

被引用文献 (4)*注記

もっと見る

参考文献 (34)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ