Author Profile

S.K Singh

Institution: P.G. Department of Zoology, Magadh University, Bodh Gaya, 823234

Country: india

Recent Posts

STUDIES ON THE EFFECT OF FEW HORMONES ON PROXIMATE COMPOSITION IN FRESH WATER TELEOSTEAN FISH, CHANNA MARULIUS (HAM.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/07-July-2019.pdf

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 In the present work an attempt has been made to study the effect of few hormones and pharmacological drugs on changes in proximate composition in whole body in a fresh water air breathing murrel, Channa marulius (Ham.). The water, protein, lipid and carbohydrate + ash content of the fish body (50.0±1.5g) of control group of fishes were 74.79±0.19, 16.02±0.32, 3.21±0.11 and 5.98±0.43% respectively. The treatment of Hydrocortisome and Durabolin brought decrease in water content but increase in protein and lipid content as compared to control. While the treatment of L-thyroxine brought an increase in water content but decrease in protein and lipid content. The details have been discussed in this fish.

TOXIC EFFECT OF SUBLETHAL CONCENTRATION OF METASYSTOX ON TOTAL AND DIFFERENTIAL COUNTS IN FRESH WATER FISH, MYSTUS TENGARA (HAM.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/06-July-2019.pdf

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 In the present work an attempt has been made to study the effect of Metasystox (an organophosphate pesticide) on changes in total (WBC counts) and differential counts in a freshwater air breathing siluroid fish, Mystus tengara (Ham.). In control group of fishes total WBC counts (Leucocytes) was 0.214 3 million/mm and percent Lymphocytes, Monocytes, Neurophils, Eosinophils and Basophils were respectively 54.6, 4.4, 37.3, 1.8 and 2.2%. The acute exposure of Metasystox for 96 hrs at sublethal dose (5.19 mg/l) caused an increase in WBC counts. Lymphocytes (%), Neurophil (%), Eosinophils (%) and Monocytes (%), but decrease in Neutrophils (%) and Basophils (%). The reason for such changes have been discussed in this paper

STUDIES ON SEASONAL VARIATION IN PROXIMATE COMPOSITION IN A TELEOSTEAN FISH, CHANNA MARULIUS (HAM.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/03-July-2019.pdf

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 Studies on seasonal variations in proximate composition have been made in a teleostean air breathing fish, Channa marulius(Ham.) in relation to ambient water temperature. Minimum values of percent water, protein, lipid, carbohydrate content and calorific values (K.cal/g) were recorded in the months of November, March, August, June and February respectively while maximum values of above noted parameters were recorded respectively in the months of July/August, June, December, May and June. The statistical relationships between ambient water temperature Vs. proximate composition fractions 0 0 were established by two separate regression lines one between 18.5 to 29.0 C and another between 29.0 C 0 to 33.4 C. The details have been discussed in this paper.

TOXIC EFFECT OF SUBLETHAL CONCENTRATION OF METASYTOX ON HAEMATOLOGY OF FRESH WATER FISH, MYSTUS TENGARA (HAM.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/02-July-2019.pdf

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 Studies on the effect of Metasystox (an organophosphate pesticide) on changes in certain haematological indices were made in a fresh water air breathing siluroid fish, Mystus tengara (Ham.). In control group of fishes the RBC counts, Hb content, PCV, MCV and MCHC were respectively 2.26±0.06 3 3 million/mm , 11.78±0.13%, 25.45±1.5%, 113.32? m , 52.45 pg and 49.57%. The acute exposure of Metasystox for 96 hrs at sublethal dose (5.19 mg/l) caused reduction in RBC counts, Hb content, PCV, MCV, MCH and MCHC as compared to control. The reasons for such changes have been discussed in this paper.

FURADAN INDUCED HISTOPATHOLOGICAL AND HISTOCHEMICAL CHANGES IN THE INTESTINE OF MACROGNATHUS ACULEATUS (BLOCH)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2018/12/2Dec-2018-curve.pdf

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In the present work an attempt has been made to evaluate the toxic effect of Furadan (a carbamate pesticide) on histopathological and histochemical changes in the intestine of a fresh water mud eel, Macrognathus aculeatus (Bloch) at sublethal concentrations (0.6, 0.80 and 0.90 ppm) for 10 and 20 days expsoures. Such treatment caused the changes in normal architectural plan of intestine. The orientation of villi was disturbed and villi were disorganised, reduced, flattened and inflated at the base. The villi tips were ruptured leading to the exudation of mucous in the lumen. The lamina propria became fibrous and odema appeared in it. The concentration of the mucosal cells with underlying connective tissue was severed making the mucosa to hand freely into the lumen. Other changes noticed were autolysis of submucosa, highly broken and ruptured villi, histolysis of columnar cells, lymphocytic infilteration and also the hyper activity of mucous cells were obvious. With the use of certain stains such as PAS, Bromophenol blue and Best carmine etc, changes in intensity of stains for carbohydrate, protein and glycogen test have been studied in control and Furadan intoxicated fishes. The details have been discussed in this paper.

FURADAN INDUCED HISTOPATHOLOGICAL AND HISTOCHEMICAL CHANGES IN THE STOMACH OF MACROGNATHUS ACULEATUS (BLOCH)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2018/07/13-June-18.pdf

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In the present work an attempt has been made to evaluate the toxic effect of Furadan (a carbamate pesticide) on histopathological and histochemical changes in the stomach of a fresh water mud eel, Macrognathus aculeatus (Bloch) at sublethal concentrations (0.6, 0.80 and 0.90 ppm) for 10 and 20 days expsoures. Such treatment caused reduction in the columnar epithelial cells and mucosal folds became stumphy and widened; after 20 days intoxication mucosal fold and submucosa got damaged; tunica propria and musculature also got damaged. With the use of certain stains such as PAS, Bromophenol blue and Best Carmine etc. changes in the intensity of stains for carbohydrate, protein and glycogen test have been studied in control and intoxicated fishes. The details have been discussed in this paper.