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THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS
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| Zeitschriftentitel: | Canadian Journal of Animal Science |
|---|---|
| Personen und Körperschaften: | , |
| In: | Canadian Journal of Animal Science, 64, 1984, 4, S. 817-824 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Canadian Science Publishing
|
| Schlagwörter: |
| author_facet |
McBRIDE, B. W. MILLIGAN, L. P. McBRIDE, B. W. MILLIGAN, L. P. |
|---|---|
| author |
McBRIDE, B. W. MILLIGAN, L. P. |
| spellingShingle |
McBRIDE, B. W. MILLIGAN, L. P. Canadian Journal of Animal Science THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS Animal Science and Zoology Food Animals |
| author_sort |
mcbride, b. w. |
| spelling |
McBRIDE, B. W. MILLIGAN, L. P. 0008-3984 1918-1825 Canadian Science Publishing Animal Science and Zoology Food Animals http://dx.doi.org/10.4141/cjas84-095 <jats:p> Total O<jats:sub>2</jats:sub> consumption, ouabain-sensitive and ouabain-insensitive respiration rates were measured for the duodenal mucosa of non-lactating and lactating cows. Support of Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase activity, as measured by ouabain-sensitive respiration, accounted for 55% of total mucosal respiration of the cows at peak lactation. In mid-lactation and during the non-lactating period the proportion of O<jats:sub>2</jats:sub> uptake inhibited by ouabain declined to 34–35%; the amount of ouabain-sensitive O<jats:sub>2</jats:sub> uptake declined from 3.6–4.0 to 2.5–2.8 μL O<jats:sub>2</jats:sub>/mg tissue per hour. The magnitude of ouabain-insensitive respiration was highest during late lactation and the non-lactating period. It was concluded that Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase accounted for a major proportion of the duodenal mucosa maintenance energy expenditure. The magnitude of this expenditure is not constant throughout lactation. Key words: Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase, duodenal mucosa, O<jats:sub>2</jats:sub> consumption, cows </jats:p> THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS Canadian Journal of Animal Science |
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10.4141/cjas84-095 |
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Biologie Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft |
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Canadian Science Publishing, 1984 |
| imprint_str_mv |
Canadian Science Publishing, 1984 |
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1918-1825 0008-3984 |
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1918-1825 0008-3984 |
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1984 |
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Canadian Science Publishing |
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Canadian Journal of Animal Science |
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49 |
| title |
THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_unstemmed |
THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_full |
THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_fullStr |
THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_full_unstemmed |
THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_short |
THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_sort |
the effect of lactation on ouabain-sensitive respiration of the duodenal mucosa of cows |
| topic |
Animal Science and Zoology Food Animals |
| url |
http://dx.doi.org/10.4141/cjas84-095 |
| publishDate |
1984 |
| physical |
817-824 |
| description |
<jats:p> Total O<jats:sub>2</jats:sub> consumption, ouabain-sensitive and ouabain-insensitive respiration rates were measured for the duodenal mucosa of non-lactating and lactating cows. Support of Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase activity, as measured by ouabain-sensitive respiration, accounted for 55% of total mucosal respiration of the cows at peak lactation. In mid-lactation and during the non-lactating period the proportion of O<jats:sub>2</jats:sub> uptake inhibited by ouabain declined to 34–35%; the amount of ouabain-sensitive O<jats:sub>2</jats:sub> uptake declined from 3.6–4.0 to 2.5–2.8 μL O<jats:sub>2</jats:sub>/mg tissue per hour. The magnitude of ouabain-insensitive respiration was highest during late lactation and the non-lactating period. It was concluded that Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase accounted for a major proportion of the duodenal mucosa maintenance energy expenditure. The magnitude of this expenditure is not constant throughout lactation. Key words: Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase, duodenal mucosa, O<jats:sub>2</jats:sub> consumption, cows </jats:p> |
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| author | McBRIDE, B. W., MILLIGAN, L. P. |
| author_facet | McBRIDE, B. W., MILLIGAN, L. P., McBRIDE, B. W., MILLIGAN, L. P. |
| author_sort | mcbride, b. w. |
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| description | <jats:p> Total O<jats:sub>2</jats:sub> consumption, ouabain-sensitive and ouabain-insensitive respiration rates were measured for the duodenal mucosa of non-lactating and lactating cows. Support of Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase activity, as measured by ouabain-sensitive respiration, accounted for 55% of total mucosal respiration of the cows at peak lactation. In mid-lactation and during the non-lactating period the proportion of O<jats:sub>2</jats:sub> uptake inhibited by ouabain declined to 34–35%; the amount of ouabain-sensitive O<jats:sub>2</jats:sub> uptake declined from 3.6–4.0 to 2.5–2.8 μL O<jats:sub>2</jats:sub>/mg tissue per hour. The magnitude of ouabain-insensitive respiration was highest during late lactation and the non-lactating period. It was concluded that Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase accounted for a major proportion of the duodenal mucosa maintenance energy expenditure. The magnitude of this expenditure is not constant throughout lactation. Key words: Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase, duodenal mucosa, O<jats:sub>2</jats:sub> consumption, cows </jats:p> |
| doi_str_mv | 10.4141/cjas84-095 |
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| institution | DE-14, DE-105, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1 |
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| spelling | McBRIDE, B. W. MILLIGAN, L. P. 0008-3984 1918-1825 Canadian Science Publishing Animal Science and Zoology Food Animals http://dx.doi.org/10.4141/cjas84-095 <jats:p> Total O<jats:sub>2</jats:sub> consumption, ouabain-sensitive and ouabain-insensitive respiration rates were measured for the duodenal mucosa of non-lactating and lactating cows. Support of Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase activity, as measured by ouabain-sensitive respiration, accounted for 55% of total mucosal respiration of the cows at peak lactation. In mid-lactation and during the non-lactating period the proportion of O<jats:sub>2</jats:sub> uptake inhibited by ouabain declined to 34–35%; the amount of ouabain-sensitive O<jats:sub>2</jats:sub> uptake declined from 3.6–4.0 to 2.5–2.8 μL O<jats:sub>2</jats:sub>/mg tissue per hour. The magnitude of ouabain-insensitive respiration was highest during late lactation and the non-lactating period. It was concluded that Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase accounted for a major proportion of the duodenal mucosa maintenance energy expenditure. The magnitude of this expenditure is not constant throughout lactation. Key words: Na<jats:sup>+</jats:sup>, K<jats:sup>+</jats:sup>-ATPase, duodenal mucosa, O<jats:sub>2</jats:sub> consumption, cows </jats:p> THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS Canadian Journal of Animal Science |
| spellingShingle | McBRIDE, B. W., MILLIGAN, L. P., Canadian Journal of Animal Science, THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS, Animal Science and Zoology, Food Animals |
| title | THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_full | THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_fullStr | THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_full_unstemmed | THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_short | THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| title_sort | the effect of lactation on ouabain-sensitive respiration of the duodenal mucosa of cows |
| title_unstemmed | THE EFFECT OF LACTATION ON OUABAIN-SENSITIVE RESPIRATION OF THE DUODENAL MUCOSA OF COWS |
| topic | Animal Science and Zoology, Food Animals |
| url | http://dx.doi.org/10.4141/cjas84-095 |