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Determination of Organ Blood Flow in Pelteobagrus fulvidraco, Ctenopharyngodon idella, and Micropterus salmoides by Fluorescent Microspheres

文献类型： 外文期刊

作者： Xu, Ning 1 ; Zhang, Huan 3 ; Yang, Qiuhong 1 ; Zhou, Shun 1 ; Ai, Xiaohui 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China

2.Hubei Prov Engn & Technol Res Ctr Aquat Prod Qual, Wuhan 430223, Peoples R China

3.Wuhan Polytech Univ, Coll Food Sci & Engn, Wuhan 430023, Peoples R China

关键词： organ blood flow; fluorescent microspheres; Pelteobagrus fulvidraco; Ctenopharyngodon idella; Micropterus salmoides

期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）

ISSN：

年卷期： 2024 年 9 卷 8 期

页码：

收录情况： SCI

摘要： The purpose of this study was to measure organ blood flow (OBF) in yellow catfish (YC, Pelteobagrus fulvidraco), largemouth bass (LB, Micropterus salmoides), and grass carp (GC, Ctenopharyngodon idella) using the method of fluorescent microspheres. Yellow-green microspheres were injected into the fish via cardiac catheterization using a syringe pump at a rate of 0.8 mL/min. Reference blood samples were collected from the dorsal aorta, and fish tissues were harvested after 5 min and processed for fluorescence spectrophotometric analysis. The results showed that the OBF of the heart increased significantly with the increase in temperature from 20 to 30 degrees C, while there was no significant difference in the OBF of other organs/tissues in YC. The OBFs of different species of LB and GC were also determined at 25 degrees C. In GC, the blood flow rates of the heart, spleen, kidney, liver, others, gills, swim bladder, intestines, muscles, and skin were 9.55, 1.00, 10.3, 6.92, 6.70, 6.04, 2.06, 2.81, 1.78, and 3.72 (mL/min/g), respectively. In LB, the blood flow rates of the same organs were 8.80, 2.33, 1.01, 0.71, 4.11, 2.72, 1.22, 0.54, 9.47, and 0.40 (mL/min/g), respectively. Compared to the OBFs of YC at 25 degrees C, the OBFs in GC were the highest, followed by LB. These results reflect that OBF in fish has significant species differences. These studies provide fundamental physiological data on OBFs in YC, GC, and LB, which has practical implications for improving the development of disciplines associated with fish physiology.

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