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Morphological study of the asymmetrical buccal cavity of the flatfish common solea(solea solea) and its relation to the type of feeding

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Asian Pacific Journal of Tropical Biomedicine 2014年第1期4卷 13-17页

作者： Neveen El Said Reda El Bakary Zoology Department Faculty of ScienceDamitta University

Objective:To investigate the surface architecture of the asymmetrical buccal cavity of solea solea which are considered one of the most important predators in benthic ***:Adult solea solea were obtained from Mediterranean Sea near *** heads were removed and processed for scanning electron *** buccal cavity is asymmetrical and divided into roof and floor and the tongue for histological ***:The buccal cavity roof is formed from upper jaw,velum and the *** upper jaw has several wing like processes with teeth arranged in several rows which may help in cutting and pushing the food to the entrance of the digestive canal while the floor is formed from the lower jaw and the *** tongue is divided into apex,body and *** is a gradual decrease of goblet cells in the tongue from anterior to *** goblet cells function in protection of the ***:Teeth in the floor of the buccal cavity and taste buds can be considered adaptive changes of the oral cavity related to the feeding habits and was a source to identify new and better methods of nutrition in aquaculture of solea solea.

关键词： Buccal cavity Scanning electron microscope Histology Flatfish solea solea

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Stress-preventing effects of the anaesthetic agents 2-phenoxyethanol, MS-222, clove oil and metomidate in the Senegalese sole solea senegalensis

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Journal of Coastal Life Medicine 2017年第12期5卷 510-515页

作者： Robilson Antonio Weber Jorge JoséPérez Maceira María JoséAldegunde Leopoldo Oscar García Martín Manuel Aldegunde Departamento de Fisiología(Laboratorio de Fisiología Animal) Facultad de BiologíaCampus Vida s/nUniversidad de Santiago de Compostela15782Santiago de CompostelaSpain Instituto Federal Catarinense Campus Araquari89245-000AraquariBrazil Laboratorio de Bioquímica.Complejo Asistencial Universitario de Salamanca.Salamanca Spain Departamento de Bioquímica y Biología Molecular Facultad de FarmaciaCampus Vida s/nUniversidad de Santiago de Compostela15782Santiago de CompostelaSpain

Objective: To determine the effectiveness of the anaesthetic agents 2-phenoxyethanol, MS-222, clove oil and metomidate in attenuating acute handling stress in juvenile specimens of solea senegalensis subjected to two routine stressful events specific to aquaculture and/or fish research. Methods: The stress-preventing effects of four anaesthetic agents (2-phenoxyethanol, 600 mg/L;metomidate, 5 mg/L;clove oil, 30 mg/L and MS-222, 75 mg/L) were evaluated in juvenile specimens of Senegalase sole (solea senegalensis) subjected to two different types of acute (handling-related) stress: air exposure and net handling (chasing). To assess the stress-preventing effects of the four anaesthetic agents, diverse blood and plasma parameters (haematocrit, haemoglobin, glucose, lactate and cortisol levels) were determined as stress indicators. Fish were treated with the anaesthetic agents before being subjected to the different types of acute stress, and they were sacrificed 30 min, 2 and 24 h later. Control fish were processed in the same way without pretreatment with the anaesthetic agents. Results: The net handling stress was of sufficient intensity to cause a significant increase in the levels of most of the stress indicators considered. By contrast, air exposure stress only induced significant increases in cortisol and haemoglobin levels. Conclusions: The stress-preventing effects of the anaesthetic agents tested were ranked on the basis of their capacity to prevent increases in the haematocrit, haemoglobin, glucose, lactate and cortisol levels, as follows: metomidate (5 mg/L) > clove oil (30 mg/L) > MS-222 (75 mg/L)> 2-phenoxyethanol (600 mg/L).

关键词： Acute stress Anaesthetic agents Stress-preventing effects solea senegalensis

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