Dynamic metabolism of arginine and its relating compounds in mammary tissues of dairy cows

奶牛乳腺组织中精氨酸及其相关化合物的动态代谢

• 批准号: 20580296
• 负责人: OBITSU Taketo
• 金额: $ 3万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20580296/
• 关键词: アルギニン; アミノ酸; 尿素; 乳腺組織; 乳タンパク質; 乳牛; 乳タンパク率; 加熱大豆粕; 牛; オルニチン; 周産期

The metabolism of arginine and its relating compounds by mammary tissues were investigated to clear the nutritional role of arginine in dairy cows. After calving, extraction rate of plasma ariginine by mammary tissues dramatically increased. Supplementation of low degradable dietary protein increased the conversion ratio of the extracted arginine to milk protein without the elevation of arterial arginine. The extent of splanchnic extraction of absorbed arginine may restrict the arginine supply to the mammary tissues.

研究了奶牛乳腺组织对精氨酸及其相关化合物的代谢，以阐明精氨酸在奶牛体内的营养作用。产犊后，乳腺组织对血浆原氨酸的提取率显著提高。饲粮中添加低降解蛋白可提高提取精氨酸对乳蛋白的转化率，但不提高动脉精氨酸水平。内脏提取吸收的精氨酸的程度可能限制精氨酸向乳腺组织的供应。

项目成果

Change of plasma arginine flux around weaning period in young calves.

犊牛断奶前后血浆精氨酸通量的变化。

• 发表时间: 2010
• 作者: 小櫃剛人;杉野利久;他3名
• 通讯作者: 他3名

Change of plasma arginine flux around weaning period in young calves

仔牛断奶前后血浆精氨酸通量的变化

• 发表时间: 2010
• 作者: Obitsu T;Sugino T;ら;他3名
• 通讯作者: 他3名

Quantitative comparison of diversity and conformity in nitrogen recycling of ruminants.

• DOI: 10.5713/ajas.2009.r.03
• 发表时间: 2009-03
• 期刊: Asian-australasian Journal of Animal Sciences
• 作者: T. Obitsu;K. Taniguchi

Effects of high ambient temperature on urea-nitrogen recycling in lactating dairy cows.

• DOI: 10.1111/j.1740-0929.2011.00880.x
• 发表时间: 2011-08
• 期刊: Animal science journal = Nihon chikusan Gakkaiho
• 作者: T. Obitsu;M. Kamiya;Y. Kamiya;Masahito Tanaka;T. Sugino;K. Taniguchi

子牛へのシトルリン給与が血漿中アミノ酸濃度に及ぼす影響

犊牛饲喂瓜氨酸对血浆氨基酸浓度的影响

• 发表时间: 2010
• 作者: 小櫃剛人・杉野利久;他3名
• 通讯作者: 他3名