@article{oai:repository.naro.go.jp:00001244, author = {篠田, 満 and SHINODA, Mitsuru and 櫛引, 史郎 and KUSHIBIKI, Shiro and 新宮, 博行 and SHINGU, Hiroyuki and 上田, 靖子 and UEDA, Yasuko}, journal = {東北農業研究センター研究報告, Bulletin of TOHOKU Agricultural Research Center}, month = {Dec}, note = {The objective of this study was to measure methane emission from beef cattle cows fed hay or whole crop rice silage (WCS) and to determine the reduction rate in methane emission due to the addition of rice bran or steam flaked corn (corn) at a maintenance energy intake level. Methane emission per dry matter intake level (DMI) of Japanese Black cows fed rice WCS harvested at the yellow-ripe stage was 33L/kg DMI, which was higher than that of cows fed hay harvested at the flower stage (28L/kg DMI). However methane emissions per digestible organic matter or digestible energy were not significantly different between cows fed hay and cows fed rice WCS. Feeding 2 kg of rice bran or corn, 30% of the ration with rice WCS decreased methane emission per DMI, and the degree of reduction for rice bran was larger than that for corn. Ruminal propionate proportions in cows fed rice WCS were lower than those for hay feeding. The addition of rice bran or corn to rice WCS increased the ruminal propionate proportion. Methane emissions from cows with a high ruminal propionate proportion tended to decrease. The results demonstrate that feeding corn or rice bran with rice WCS is effective for decreasing methane emission from cows., 黒毛和種繁殖雌牛に黄熟期収穫のイネホールクロップサイレージ (イネWCS) を維持量給与した場合のメタン産生量は、摂取乾物 (DM) 1kg当たり33L/kgで、開花期収穫の乾草の28L/kgよりも有意に高かった。しかし、可消化有機物および可消化エネルギー当たりでは有意な差ではなかった。イネWCSの維持量給与水準において米ヌカまたは蒸煮圧片トウモロコシを原物で2kg、添加割合で30%給与することにより、摂取DM当たりのメタン産生量は低下し、その低下の程度は米ヌカの方が大きかった。第一胃液のプロピオン酸モル比はイネWCS給与は乾草給与に比べて低いが、米ヌカまたはトウモロコシを添加するとその比は高まった。プロピオン酸モル比の高い飼料の方がメタン産生量は少ない傾向にあった。本試験より、イネWCS給与において、トウモロコシもしくは米ヌカの添加はメタン産生量の減少に有効であることが認められた。}, pages = {47--53}, title = {黒毛和種雌牛の維持給与水準における給与飼料の種類および濃厚飼料添加が第一胃メタン産生に及ぼす影響}, volume = {108}, year = {2007}, yomi = {シノダ, ミツル and クシビキ, シロウ and シングウ, ヒロユキ and ウエダ, ヤスコ} }