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End date: 2019Subject: search.filters.subject.Channa striata

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    METASYSTOX INDUCED HAEMATOLOGICAL MODULATION IN THE SOUTH INDIAN SNAKEHEADED CHANNA STRIATA
    (Dr. Shashi Alok, Assistant Professor, Institute of Pharmacy, Bundelkhand University Jhansi (U.P.), India, 2011-04-11) Sasikala G; Palanisamy P; Mallikaraj D; Bhuvaneshwari N; Natarajan G M
    Snakeheaded Channa striata reared in freshwater of metasystox (1.7 mg L-1) for 15 d and 30 d. Evaluation of some of the haematological parameters showed that on exposure, haematocrit content (Ht), haemoglobin content (Hb), total erythrocyte count (RBC), neutrophil, basophil, lymphocyte values markedly increased and depressed monocyte values. Observations of blood parameters allows the most rapid detection changes in fish, which may be used as a diagnostic test for aquatic pollution.
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    HAEMATOLOGICAL CHANGES OF FRESH WATER FOOD FISH, CHANNA STRIATA ON EXPOSURE TO CLEISTANTHUS COLLINUS SUICIDAL PLANT EXTRACT
    (Dr. Sridevi M, India, 2011-04) Palanisamy P; Sasikala G; Mallikaraj D; Bhuvaneshwari N; Natarajan G M
    The freshwater fish Channa striata were exposed to lethal concentration of Cleistanthus collinus plant extract (10 mg L-1) 48 h. At the end of the 48 h exposure period, blood samples were taken from the control and experimental fish. Blood was assayed for selected haematological parameters (haematocrit, haemoglobin, red blood cell counts, white blood cells counts and erythrocyte sedimentation rate). The derived haematological indices of mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration were calculated. Significant decreases observed RBC (P<0.05), Hb content (P<0.01) PCV (P<0.01) WBC (P<0.05) were observed during the exposure period.
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    BIOCHEMICAL MODULATIONS INDUCED BY METASYSTOX IN FRESH WATER SNAKEHEADED FISH CHANNA STRIATA BLOOD
    (BRNSS Publication Hub, Mandsaur University, Madhya Pradesh, India, 2011-04-10) Sasikala G; Palanisamy P; Mallikaraj D; Bhuvaneshwari N D; Natarajan G M
    Metasystox is one of the pesticides extensively used in agricultural practices throughout the world. Channa striata were exposed to sublethal concentrations (5 mg L-1) of metasystox for 15 d to assess the alterations in the level of blood glucose, lactate, sodium and potassium in blood plasma. Significant alterations in all the biochemical parameters were found to be dose dependent. Elevated levels of blood glucose and depressed lactate, sodium and potassium in blood further indicated lower metabolic rate after 15 d of exposure. Significant decline in triglycerides content was observed in fish exposed to both sublethal concentrations of metasystox. It was concluded that metasystox is poisonous and had a significant effect on the behaviour and biochemical system, which adversely affected the health of the fish. The authors suggested that increase in glucose (hyperglycaemia) which was dose and duration dependent in the sub lethal exposure to metasystox may be considered to be manifestation of stress induced by the toxicants and analysis of biochemical parameters in the fish blood may serve as us eful indices in environmental biomonitoring.
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    ACETYLCHOLINE ESTERASE, ACETYLCHOLINE, SUCCINIC DEHYDROGENASE AND LACTIC DEHYDROGENASE CHANGES IN THE FRESH WATER FOOD FISH CHANNA STRIATA AFTER EXPOSURE TO CLEISTANTHUS COLLINUS SUICIDAL PLANT EXTRACT
    (Global Research Online, Bangalore, India, 2011-07-01) Palanisamy P; Mallikaraj D; Sasikala G; Natarajan G M
    Abstract: The enzymes Acetylcholinesterase (AchE), Acetylcholine (Ach), Succinic dehydrogenase (SDH) and Lactatedehydrogenase (LDH) are used as biological markers in the present study. Enzymes are highly sensitive and used to evaluate the biological effects of suicidal plant extract Cleistanthus collinus in freshwater food fish Channa striata. A significant increase in the Ach, LDH and SDH activity in muscle, liver and gill were observed. The AchE activity significantly declined by -49.80% liver, -45.00% gills and -38.03% in liver.