Use of spent mushroom substrates as roughage stimulating rumination

2016 Fiscal Year Final Research Report

• Project/Area Number: 26520305
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 特設分野
• Research Field: Food Cycle Research
• Research Institution: Shinshu University
• Principal Investigator: KOH Katsuki 信州大学, 学術研究院農学系, 教授 (40215166)
• Research Collaborator: HIRAMORI Chikao 協全商事株式会社, 社長
• Project Period (FY): 2014-07-18 – 2017-03-31
• Keywords: きのこ / 廃培地 / 反芻刺激 / 粗飼料

Outline of Final Research Achievements

In order to use spent mushroom substrates as roughage, the present study was performed to investigate whether mushrooms can be cultivated in substrates containing a long fiber material and the resultant spent substrates can stimulate chewing activity of ruminants. We used sweet corn stover, which is a regional biomass in Nagano prefecture, as a long fiber material. Lactic fermented sweet corn stover cut in 3 cm length could be included successfully in a mushroom substrate up to 25%. After mushrooms were harvested, spent substrates were ensiled and the resultant silage showed good fermentation quality and palatability in sheep. Sheep given this silage exhibited greatly increased chewing activity, comparing with sheep given conventional spent-substrate silage: the activity nearly reached to that in sheep given corn silage. Consequently, it is suggested that the mushroom substrate containing sweet corn stover cut in 3 cm length is promising for both mushroom and roughage production.

Free Research Field

飼料学