{"title":"Effects of dietary clenbuterol on net flux across the portal-drained viscera, liver and hindquarters of steers (Bos taurus)","authors":"Joan H. Eisemann , Gerald B. Huntington","doi":"10.1016/0742-8413(93)90008-9","DOIUrl":null,"url":null,"abstract":"<div><p>1. Addition of the β-adrenergic agonist clenbuterol to the diet of steers increased blood flow in portal-drained viscera, liver and tissues of the hindquarters.</p><p>2. Uptake of oxygen increased with clenbuterol feeding in hindquarters but not portal-drained viscera or liver.</p><p>3. On day 1 of clenbuterol feeding, the principal source of circulating <span>l</span>-lactate switched from portal-drained viscera to hindquarters.</p><p>4. Both net release of α-amino nitrogen by the portal-drained viscera and net uptake by the hindquarters decreased on day 1 of clenbuterol feeding. Over time of clenbuterol feeding, both release of α-amino nitrogen by the portal-drained viscera and uptake by the hindquarters increased to equal or greater than pretreatment values, respectively.</p></div>","PeriodicalId":72650,"journal":{"name":"Comparative biochemistry and physiology. C: Comparative pharmacology","volume":"104 3","pages":"Pages 401-406"},"PeriodicalIF":0.0000,"publicationDate":"1993-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0742-8413(93)90008-9","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comparative biochemistry and physiology. C: Comparative pharmacology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0742841393900089","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
1. Addition of the β-adrenergic agonist clenbuterol to the diet of steers increased blood flow in portal-drained viscera, liver and tissues of the hindquarters.
2. Uptake of oxygen increased with clenbuterol feeding in hindquarters but not portal-drained viscera or liver.
3. On day 1 of clenbuterol feeding, the principal source of circulating l-lactate switched from portal-drained viscera to hindquarters.
4. Both net release of α-amino nitrogen by the portal-drained viscera and net uptake by the hindquarters decreased on day 1 of clenbuterol feeding. Over time of clenbuterol feeding, both release of α-amino nitrogen by the portal-drained viscera and uptake by the hindquarters increased to equal or greater than pretreatment values, respectively.
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