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STUDIES ON PERIPHYTON DIVERSITY IN FEW PONDS OF GAYA DISTRICT

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/09-July-2019.pdf

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 Chaterghat pond, Chakand and Lakshmipur Pond, Chakand (both from Gaya District) were explored with regard to Periphyton community structure. Species diversity (H) was calculated for both the ponds by using Shannon-Weaver’s equation and found to be more or less same, 2.52283 and 2.66388 respectively. Greater stress of competition for space and resources was observed in Chaterghat Pond, Chakand (J=0.75945) as compared to Laxmipur Pond, Chakand (J=0.88796). Index of dominance (C) and other measure of diversity (D), calculated as D = 1-C, corroborated the above conclusion. Cylindrocapsa sp. amongst the algae was abundant in acidic condition while Rivularia sp. was predominant in neutral condition.

STUDIES ON SOME ASPECTS OF PROXIMATE COMPOSITION AND CALORIFIC VALUES IN A FRESH WATER FISH, RITA RITA (HAM.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/08-July-2019.pdf

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 The calorific values (Total and K. cal/g dry weight), moisture, protein and ash content in relation to sex and body weight were studied in Rita rita (Ham.). With unit increase in body weight the total calorific values, moisture, protein and ash content increased by powers of 0.845, 0.696, 0.876 and 1.376 respectively. The females showed higher calorific value (4.320 K.cal/g) than that of males (4.052 K.cal/g). The details have been discussed in this paper.

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

LINURON (WEEDICIDE) INDUCED CHANGES IN HAEMATOBIOCHEMICAL INDICES IN A TELEOSTEAN FISH, CLARIAS BATRACHUS (LINN.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/05-July-2019.pdf

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 Studies on the effect of sublethal concentration (5.0 mg/litre) of a weedicide, Linuron were made for the changes in some haemato-biochemical parameters in an air breathing teleostean fish, Clarias batrachus (Linn.). In control group of fishes the values of blood glucose, plasma protein and blood urea were 59.542, 12.04 and 30.92 mg/100ml of blood respectively. The exposure of fishes to sublethal concentration of Linuron (5.0ppm) for different hours (24, 48, 72 and 96 hrs.) caused significant increase in blood glucose and blood urea and considerable decrease in plasma protein. The reason for such changes has been discussed in this paper.

STUDIES ON THE FEED FORMULATION AND FORTIFICATION OF CONVENTIONAL FEED FOR GROWTH PERFORMANCE OF A FRESH WATER TELEOST, CHANNA MARULIUS (HAM.)

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/04-July-2019.pdf

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 In the present work an attempt has been made to study the effect of five different types of supplementary feeds on weight gain (SGR), food efficiency and individual growth increment (g/fish/day) in a fresh water air breathing teleost, Channa marulius (Ham.). The experiment was conducted for 60 days in cemented tank (having soil at the bottom). The average daily individual growth increment (g/fish) were 0.502 with rice bran+ground nut oil cake (GNOC), 0.505 with Maize bran + GNOC, 0.510 with fish meal + GNOC; 0.513 with spoiled boiled (SB) egg and 0.517 with SB Egg+Maize bran as compared to control (0.105). The merits and demerits of different feeds have been discussed in this fish.

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.

BREEDING BIOLOGY OF HOUSE CROW CORVUS SPLENDENS IN URBAN ECOSYSTEM OF KOLKATA

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

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 The house crow Corvus splendens is a native species to Indian sub-continent, with presence in southern Iran, Myanmar, Nepal and Sri Lanka. House crows are very well adapted in the urban areas where ample food resources and suitable nesting, feeding and roosting sites are available. Crows are monogamous and the pair-bond remains for consecutive seasons. The house crow breeds from March to September, chiefly April, May and June, but peak periods varies locally. In the present study breeding behaviour of house crow was studied in eight different urban locations of south Kolkata. Accordingly surveys were made fromNovember, 2017 to March, 2109 at pre-selected nesting sites of House crow. A total of 1029 trees were surveyed in eight locations out of which 175 trees were found to have the nest of Corvus splendens. Out of 1029 Trees, 175 were considered by Corvus splendens for construction of nests.Though there were many more nesting potential trees along the road side were available, but the crows were interested to make nests on trees of particular families in respect to others.The first nesting pair was observed in December, 2018 to have started the nesting activity, it could be of 15 or 16 months old individual. It took them 18 days to fully construct the nest and eggs were laid on subsequent days. The female and sometimes male incubated the four eggs for 21 days, during this time female was fed by male and vice versa. The chicks grow quickly and leave the nest at around four weeks after hatching, although they were fed by parents almost for one more month.

OCCURRENCES OF TOXICITY IN COMMON DIETARY ITEMS AT RETAIL SHOPS AND ITS REMEDY BASED ON SOLAR ENERGY: A CASE STUDY

http://anveshika.org/proceedings-of-the-zoological-society-of-india/wp-content/uploads/sites/2/2020/01/30-June-2019.pdf

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 Dietary items supply in retail shops are routed through a number of steps and storage processes. The middle men involved in between producer and consumer, are not sensitive towards to maintain appropriate conditions during storage and transportation, leading to spoilages. Some of these spoilages are toxic in nature. Growth of toxic Fungi is one such alarming infestation, which is rampant not only during post harvest conditions but even during pre harvest condition. To determine the level of fungal toxicity, samples were collected from retail shops. Present study is confined to Aspergillus group. Aflatoxins represent a group of toxic mold metabolites that are not only toxic but a proved carcinogen, mutagen, and teratogen as well. The study provides indirect evidences for many of the human ailments and emphasizes on solar energy drier and space heating mechanism to control it.