Improvement of fiber digestion and lowering of ruminal methane
改善纤维消化并降低瘤胃甲烷
基本信息
- 批准号:11695071
- 负责人:
- 金额:$ 3.14万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2001
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
(1) Effect of addition of Yucca schidigera extracts (YS) and/or allyl isothiocyanate-cyclodextrin (Al-CD) complex on in vitro ruminal methane production and rumen fermentation was studied. Number of ruminal protozoa was decreased by YS, but unchanged by Al-CD. Molar proportion of ruminal acetic acid decreased, while that of propionic acid increased by both compounds. Methane production was inhibited by both compounds by 20-80 % during 6 hr incubation. However, fiber digestion was somewhat reduced when higher amounts of additives were administrated.The effect of YS on methane production in vivo was also studied by usinig cattle. YS was added to the diet consisted of hay plus concentrate (1.5 : 1) at the level of 0.5% and 1% of diet. Ruminal methane production was decreased slightly in the case of 0.5% addition, and decreased by 20% in the case of 1% addition. The number of protozoa and concentration of ammonia were also decreasd by the addition of YS.It was clarified that the supplement of Chinese milk vetch silage and rapeseed meal can increase the performance and rumen fermentation efficiency in lambs given ammoniated rice straw based diet. Cellulase treatment of untreated and steam pre-treated rice straw were shown to be effective in in vitro rumen fermentation.(2) Changes in plasma concentrations of reproductive hormones in heifers from birth to puberty was studied. Weekly or daily hormonal changes were observed. Daily changes in the concentration of follicle-stimulating hormones showed consistent cycle of hormone changes over a 7- to 8-day period in heifers from approximately 10 days to 9 months old. At birth, the concentrations of steroid hormones were higher than those at any other age. Gonadotropin levels, however, increased from birth to 1 week of age. These observations may be helpful in the case of the use of feed additives mentioned above.
(1)研究了添加丝兰提取物(YS)和/或异硫氰酸烯丙酯-环糊精(Al-CD)复合物对体外瘤胃甲烷产生和瘤胃发酵的影响。 YS 使瘤胃原生动物数量减少,但 Al-CD 没有变化。两种化合物均降低了瘤胃乙酸的摩尔比例,而增加了丙酸的摩尔比例。在 6 小时的孵育过程中,两种化合物均抑制甲烷产生 20-80%。然而,当添加较高量的添加剂时,纤维消化会有所降低。还通过使用牛研究了YS对体内甲烷产生的影响。 YS 添加到由干草加浓缩物 (1.5:1) 组成的日粮中,添加量为日粮的 0.5% 和 1%。添加0.5%时瘤胃甲烷产量略有下降,添加1%时瘤胃甲烷产量下降20%。 YS的添加也降低了原虫数量和氨浓度。结果表明,添加紫云英青贮饲料和菜籽粕可以提高以氨化稻草为主的羔羊的生产性能和瘤胃发酵效率。未经处理和蒸汽预处理的稻草的纤维素酶处理在体外瘤胃发酵中均被证明是有效的。(2)研究了小母牛出生至青春期血浆生殖激素浓度的变化。观察每周或每天的荷尔蒙变化。卵泡刺激激素浓度的每日变化表明,从大约 10 天到 9 个月大的小母牛在 7 到 8 天的时间内,激素变化的周期是一致的。出生时,类固醇激素的浓度高于任何其他年龄段的浓度。然而,从出生到 1 周龄,促性腺激素水平有所增加。这些观察结果可能对使用上述饲料添加剂的情况有所帮助。
项目成果
期刊论文数量(60)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
鎌田信一ら編(共著): "新版家畜衛生学概論"文永堂出版. 305 (2000)
蒲田真一等编(合着):“新版牲畜卫生简介”Buneido Publishing 305(2000)。
- DOI:
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- 影响因子:0
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Todoroki, J., et al.: "Restoring ovulation in beef donor cows with ovarian cysts by progesterone -releasing intravaginal silastic devices"Veterinary Medical Science. 64. 83-85 (2002)
Todoroki, J. 等人:“通过释放黄体酮的阴道内硅橡胶装置恢复患有卵巢囊肿的供体奶牛的排卵”《兽医科学》。
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- 影响因子:0
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Araki,K., Arai,KY, Watanabe G., Taya, K.: "Involvement of insulin in the regulation of follicle-stimulating hormone secretion in the young adult male goat"Journal of Andrology. 21(in press). (2000)
Araki,K.、Arai,KY、Watanabe G.、Taya, K.:“胰岛素参与年轻成年雄性山羊促卵泡激素分泌的调节”男科杂志。
- DOI:
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- 影响因子:0
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Liu, J.X., et al.: "In vitro gas production measurements to evaluate interactions between untreated and chemically treated rice straws, grass hay, and mulberry leaves"Journal of Animal Science. 80. 517-524 (2002)
Liu, J.X., et al.:“体外气体产生测量,以评估未经处理和化学处理的稻草、干草和桑叶之间的相互作用”动物科学杂志。
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- 影响因子:0
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板橋 久雄(分担執筆): "ルーメン発酵、「発酵ハンドブック」(栃倉辰六郎ら監修)"共立出版. 106 (2001)
板桥久男(撰稿人):“瘤胃发酵,《发酵手册》(栃仓龙六郎等监修)”Kyoritsu Shuppan 106(2001)。
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ITABASHI Hisao其他文献
ITABASHI Hisao的其他文献
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{{ truncateString('ITABASHI Hisao', 18)}}的其他基金
Mycotoxin effect on bovine rumen fermentation and its control by probiotics
霉菌毒素对牛瘤胃发酵的影响及益生菌的控制
- 批准号:
23580376 - 财政年份:2011
- 资助金额:
$ 3.14万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Studies on microbial and chemical control of methane production from the rumen
瘤胃甲烷产生的微生物和化学控制研究
- 批准号:
08660327 - 财政年份:1996
- 资助金额:
$ 3.14万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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