Mesure du débit du sang de la veine porte au moyen d'un débitmètre électromagnétique chez la chèvre

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI:10.1051/RND:19790606

J. Barry, Elisabeth Debras, J. Lefaivre, C. Champredon

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引用次数: 3

Abstract

Summary. Measurement of portal vein blood flow in goats using an electromagnetic flow- meter. When quantitatively measuring the products of digestion in the portal blood, the following factors are to be studied : - the difference between the concentrations of those products in the arterial blood affe- rent to the alimentary canal and of those in the venous portal blood, - blood flow in the portal vein. As a preliminary step, we have undertaken the study of the continuous measurement of the portal blood flow in ruminants (goats), using a method analogous to that employed by Rérat in pigs. Nine goats were fitted with a ring-probe around the portal vein ; during reading, the probe was attached to an electromagnetic flow-meter connected to a recor-der. Fifteen readings were taken on 4 of the animals (mean live weight : 47 kg) for about 7 hours after the morning feeding. After installation, each gauge allowed readings for 4 to 5 consecutive weeks. The signal then faded, and the animals were slaughtered and exami- ned. As the wall of the portal vein had slightly thickened and therefore its lumen was only slightly reduced, signal damping could be attributed to a change in probe functio- ning. The mean flow, measured at the time of reading, was 1 830 ml/min or 39 ml/min/kg of live weight. This study showed a large variability in the flow and distinguished 3 variations throughout the day :

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用电磁流量计测量山羊门静脉的血流量

总结。用电磁流量计测量山羊门静脉血流。当定量测量门静脉血液中的消化产物时，需要研究以下因素:流向消化道的动脉血中消化产物的浓度与门静脉血液中消化产物的浓度之间的差异;门静脉血流。作为初步步骤，我们已经开展了反刍动物(山羊)门静脉血流连续测量的研究，使用的方法类似于rsamrat在猪身上使用的方法。9只山羊在门静脉周围安装环状探针;读数时，探头连接到与记录仪相连的电磁流量计上。在早上喂食后约7小时内，对其中4只动物(平均活重:47 kg)进行了15次读数。安装后，每个仪表允许连续读数4至5周。然后信号消失了，动物被宰杀并接受检查。由于门静脉壁略有增厚，因此其管腔仅略有减少，信号衰减可归因于探头功能的改变。读数时测量的平均流量为1 830 ml/min或39 ml/min/kg活重。这项研究显示了流量的巨大变化，并在一天中区分了3种变化:

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Annales De Biologie Animale Biochimie Biophysique

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