Journal of Environmental Biotechnology Vol. 13, No. 2, 89 93, 2013 総説 ( 特集 ) カシューナッツ副産物給与によるウシからのメタン生成削減 Reduction of Methane from Cattle Rumen by Feeding Cashew Byproduct Yasuo Kobayashi 060 8589 9 9 TEL & FAX: 011 706 2476 E-mail: kyas@anim.agr.hokudai.ac.jp Research Faculty of Agriculture, Hokkaido University, Kita 9 Nishi 9, Kita, Sapporo, Hokkaido 060 8589, Japan キーワード Key words: methane, cattle, rumen, microbes 2013 9 5 2013 9 12 1. はじめに 34 90 6) SCFA 1 2 12 3) 20 CO 2 1 1 5 30 0.5 7) 5 10 5) RUMEN-UP 500 11) 4) 1
90 2. これまでに見つかっているメタン低減剤 CH 2BrCl 9 2 3 16) 15) 1970 12) 1980 2006 11) 1) 3. カシュー副産物の機能性 Cashew nut shell liquid, CNSL 2 8) 3.1 これまでの学術情報 CNSL 15 2
Reduction of Methane from Cattle 91 3 2 1 2 3 9 3 Staphylococcus aureus Streptococcus mutans 8) Helicobacter pylori 9) CNSL CNSL 3.2 メタン低減能の発見と実証 CNSL CNSL 14) CNSL CNSL CNSL 200 mg/l 70 44 4 CNSL CNSL Whole body chamber 20 30 1 13) 5 10 CNSL CNSL 3.3 メタン低減の機序 CNSL CNSL 14 8 CNSL 7 5 1.56 6.25 mg/l CNSL 4 2 P<0.01 Watanabe et al. 2010 3 R R1-R3 3 5
92 1 1 2 SEM P-value SEM P-value L/kg 44.8 100 a 27.7 61.7 b 3.803 0.046 38.3 100 x 30.9 80.7 y 1.696 0.037 L/kg 59.3 100 38.4 64.7 5.259 0.058 54.1 100 x 42.4 78.4 y 0.935 0.011 L/kg 61.4 100 39.7 64.6 5.576 0.060 55.5 100 x 43.7 78.7 y 1.806 0.023 77.5 74.5 0.788 0.059 73.8 75.9 1.447 0.287 68.2 63.2 1.464 0.076 67.4 73.1 1.495 0.063 a,b; x,y 100 Shinkai et al. 2012 7 4 CNSL CNSL Methanobrevibacter ruminantium 1.56 mg/l 5 2 S. aureus C15:3 10) 2 CNSL CNSL 60 CNSL CNSL 6 CNSL Ruminococcus flavefaciens Treponema bryantii 13) CNSL CNSL 16SrRNA mcra 2154 CNSL CNSL Succinivibrio dextrinosolvens 6 TB, total bacteria; TM, total methanogens; Rf, Ruminococcus flavefaciens; Rb, Ruminococcus albus; Tb, Treponema bryantii; Sb, Streptococcus bovis; Fs, Fibrobacter succinogenes, Pr, Prevotella ruminicola; Pb, Prevotella bryantii; Sd, Succinivibrio dextrinosolvens; Ra, Ruminobacter amylophilus, Al, Anaerovibrio lipolytica; Sr, Selenomonas ruminantium; Me, Megasphaera elsdenii. Methanomicrobium mobile Methanobrevibacter wolinii S. dextrinosolvens M. mobile CNSL CNSL 7 CNSL M. wolinii mcra CNSL 13)
Reduction of Methane from Cattle 93 7 3.4 応用展開の方向 CNSL 2) CNSL 文 1) Calsamiglia, S., M. Busquet, P.W. Cardozo, L. Castillejos, and A. Ferret. 2007. Essential oils as modifiers of rumen microbial fermentation. J. Dairy Sci. 90: 2580 2595. 献 2) FAO. 2006. Livestock s ling shadow: environmental issues and options. FAO Corporate Document Repository. http://www. fao.org/docrep/010/a0701e/a0701e00.htm 3) Johnson, K.A. and D.E. Johson. 1995. Methane emissions from cattle. J. Anim. Sci. 73: 2483 2492. 4) Kobayashi, Y. 2010. Abatement of methane production from ruminants: trends in the manipulation of rumen fermentation. Asian-Aust. J. Anim. Sci. 23: 410 416. 5) Kobayashi, Y., T. Shinkai, and S. Koike. 2012. Agricultural byproducts as modulators of rumen microbiota. pp.49-60. In: International Colloquium on Rumen Microbiology (ISBN 978-85-63273-12-3, ISSN 1983-4357). Brazilian Soc. Anim. Sci., Brasillia, Brazil. 6) 2010 3 6 pp. 31 49; 123 127; 150 158 7) 2011 36: 124 126. 8) Kubo, I., K. Nihei, and K. Tsujimoto. 2003. Antibacterial action of anacardic acids against methicillin resistant Staphylococcus aureus (MRSA). J. Agric. Food Chem. 54: 7624 7628. 9) Kubo, J., J. Lee, and I. Kubo. 1999. Anti-Helicobacter pylori agents from the cashew apple. J. Agric. Food Chem. 47: 533 537. 10) Kubo, I., H. Muroi, and M. Himejima. 1993. Structure - antibacterial activity relationships of anacardic acids. J. Agric. Food Chem. 41: 1016 1019. 11) Rumen up. 2005. Final report from RUMEN-UP. Rowett Research Institute. http://www.rowett.ac.uk/rumen_up/index. html 12) Russell, J.B. and H.J. Strobel. 1989. Effect of ionophores on ruminal fermentation. Appl. Environ. Microbiol. 55: 1 6. 13) Shinkai, T., O. Enishi, M. Mitsumori, K. Higuchi, Y. Kobayashi, A. Takenaka, K. Nagashima, M. Mochizuki, and Y. Kobayashi. 2012. Mitigation of methane production from cattle by feeding cashew nut shell liquid. J. Dairy Sci. 95: 5308 5316. 14) Watanabe, Y., R. Suzuki, S. Koike, K. Nagashima, M. Mochizuki, R.J. Forster, and Y. Kobayashi. 2010. In vitro evaluation of cashew nut shell liquid as a methane-inhibiting and propionate-enhancing agent for ruminants. J. Dairy Sci. 93: 5258 5267. 15) Williams, Y.J., S. Popovski, S.M. Rea, L.C. Skillman, A.F. Toovey, K.S. Northwood, and A-D.G. Wright. 2009. A vaccine against rumen methanogens can alter the composition of archaeal populations. Appl. Environ. Microbiol. 75: 1860 1866. 16) Wright, A.D.G., P. Kennedy, C.J. O Neill, A.F. Toovey, S. Popovski, S.M. Rea, C.L. Pimm, and L. Klein. 2004. Reducing methane emissions in sheep by immunization against rumen methanogens. Vaccine 22: 3976 3985.