Comparative Hematological Values, Morphometric and Morphological Observation of the Blood Cell in Capture and Culture Asian Eel, Monopterus albus (Zuiew)

Abstract

Problem statement: Monopterus albus (Zuiew), Asian Eel, is one of the common fish found mainly in Asia. At present, the habitats of Asian Eels have been on the decrease. Contrarily, consumption of Asian Eel has increased. Whereas, data regarding blood cell characteristics, blood cell sizes and hematological values of Asian Eel are limited. As such, the objective of this study was to establish the blood cell characteristics, blood cell dimension and hematological values of capture and culture Asian Eel. Basic knowledge from this study is important for hematological research, conservation, clinical diagnosis and in-depth study of this Eel. Approach: Blood samples of capture (n = 13) and culture (n = 19) Asian Eel, Monopterus albus (Zuiew) were collected in northeastern Thailand. Hematological values, morphometric and morphology of the blood cells were determined using standard techniques. Hematological values and morphometric between captive and cultural Eel were compared. Results: Hematological values and morphometrics of the capture and cultural Eel were not significantly different (p>0.05), but the hemoglobin and neutrophil of the capture eel were significantly higher than those of the culture eel (p<0.05). Neutrophil, monocyte, eosinophil and thrombocyte characteristics of Asian Eel were not different from other Eels. Nucleus characteristics, cytoplasmic shape and nucleus: Cytoplasm ratio of small cell I and small cell II were different. Lymphocyte of Asian Eel was different form the previous report. Conclusion: This study indicated that sources of eel influenced to some hematological values.

Numerical and Morphological Alterations in Erythrocytes of Pesticide Induced Indian Catfish Heteropneustes fossilis (Bloch)

“…Similar findings which support our study has also reported by Gautam and Kumar who studied haematology of Channa punctatus subjected to Nuvan [21]. Recently, Ponsen et al studied haematological parameters and blood morphology of Asian eel, Monopterus alba and the results recorded are in agreement with our study [22]. Sasikala et al observed similar results in metasystox induced Channa striata [23].…”

Primo-Vascular System as Presented by Bong Han Kim

“…Kim gave an example by revealing the cellular composition of the internal primo-node by using the Giemsa stain. Giemsa stain has a remarkable dynamic range of colors capable of visualizing the complex morphological composition of blood cells ( Table 1 ) [ 43 , 60 – 62 ]. Figure 6 identifies a multipotent hematopoietic stem cell, hemocytoblast, and an important member of myeloid lineage, megakaryocyte [ 5 , 7 ].…”

Comparative hematology of wild Anguilliformes (Muraena helena, L. 1758, Conger conger, L. 1758 and Anguilla anguilla L. 1758)

“…In the genus Anguilla, some species are recorded to have eosinophils while others lack this cell type (Orecka-Grabida, 1986;Kusuda and Ikeda, 1987;van Ginniken et al, 2005;Ponsen et al, 2009). Further sampling during other seasons or experimental exposure to pathogens or parasites might allow for the discovery of the existence of eosinophils and the basophils in all three fish species analyzed here.…”

“…The neutrophil (heterophil) subtype with an intensively basophilic cytoplasm, resembling reptilian or avian azurophils, was found in moray and was difficult to classify as any known fish granulocyte type (Campbell and Ellis, 2007). Interestingly, these cells were not present in conger or common eel (Orecka-Grabida, 1986;Kusuda and Ikeda, 1987;van Ginniken et al, 2005;§ahan et al, 2007;Ponsen et al, 2009). Occasionally, there are granulocyte cells that do not fit into any of the subclasses and do not resemble any known granulocyte type (Ranzani-Paiva et al, 2003;Shigdar et al, 2009).…”