牛の分離第一胃・二胃における水分, 電解質ならびにVFAの吸収に対する浸透圧の影響
書誌事項
- タイトル別名
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- Effects of osmolality on water, electrolytes and VFAs absorption from the isolated ruminoreticulum in the cow.
- 牛の分離第1胃・2胃における水分,電解質ならびにVFAの吸収に対する浸透圧の影響〔英文〕
- ウシ ノ ブンリ ダイ1イ 2 イ ニ オケル スイブン デンカイシツ ナラビ
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Effect of the osmolality on the absorption of water, electrolyte and VFAs from the isolated ruminoreticulum under normal feeding condition were investigated in a series of the studies to evaluate the rumen as a potential site of absorption in oral fluid therapy of adult cattle. Thirty of 40 l of the test solutions with varying osmotic pressure (100, 200, 300 and 500 mosmol/L, pH 6.8) were prepared using different concentrations of electrolytes and VFAs. These were infused into the isolated and emptied ruminoreticulum, and the absorption rate of water and each components were studied for 3 hrs. Marked absorption of water was observed with solutions more hypotonic than rumen fluid, the extent of which was more extensive with less osmotic pressure; the absorption rate as high as 47.6% was obtained with a solution 100 mosmol in osmotic pressure. When hypertonic solution (500 mosmol/L)was infused, however, water was transported on the contrary from the blood to the rumen. Absorption rates of electrolytes such as Na, K and Cl were increased according to the elevation of osmolalities and their concentrations in the test solutions. VFAs were also absorbed in large quantities (23.9-74.5%) in any test solutions, though the absorption rates were significantly decreased with the elevation of osmolalities. These results may indicate that the ruminal wall has a high absorptive function for water, electrolytes and VFAs when the osmolalities and the concentration of solutes in the ruminal fluid are maintained within a certain range. Furthermore, it is thought that they may work as a rational support for a possible oral fluid therapy even in adult cows.
収録刊行物
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- 日本獸醫學雜誌(The Japanese Journal of Veterinary Science)
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日本獸醫學雜誌(The Japanese Journal of Veterinary Science) 52 (1), 91-96, 1990
公益社団法人 日本獣医学会
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詳細情報 詳細情報について
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- CRID
- 1390282681398742784
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- NII論文ID
- 110003918159
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- NII書誌ID
- AN00191788
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- COI
- 1:CAS:528:DyaK3cXitFChtb0%3D
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- ISSN
- 18811442
- 00215295
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- NDL書誌ID
- 3657565
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- PubMed
- 2313955
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可