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Nucleic acid content in male fresh water fish N. notopterus exposed to copper sulphate

100%
Ravikiran K., Kulkarni R. S.
International Letters of Natural Sciences
|
2015
|
tom 06
The nucleic acid content in different tissues such as brain, liver, kidney & testis of both control and copper sulphate (CuSO4) exposed freshwater fish N. notopterus has been studied. The following observation is made in both control and copper sulphate (CuSO4) exposed fish. The testis contain large amount of DNA in comparison to other tissues. The degree of DNA content in control and copper sulphate (CuSO4) exposed fish testis >liver>brain>kidney. The RNA content also exhibited similar to that of DNA, having higher amount in the testis. The degree of RNA content in control and copper sulphate (Cuso4) exposed fish testis >liver>brain>kidney. The nucleic acid content of tissues get reduced under copper sulphate (CuSO4) exposed in the male freshwater fish N. notopterus indicating copper sulphate as a pollutant effect the nucleic acid content in the tissue.
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Nucleic acid content in different tissues of the fish, N. notopterus in relation to sex

100%
Ravikiran K., Kulkarni R. S.
International Letters of Natural Sciences
|
2015
|
tom 07
Nucleic acid content in different tissues in the freshwater fish N.notopterus in relation to sex was studied during Pre-spawning phase of the reproductive cycle. The fish were scarified and the tissues such as brain, liver, kidney and gonads removed and processed for determination of nucleic acids. It is observed that the nucleic acid content in different tissues of female fish has lower values than males. The results obtained in the present study may provide a contribution to the knowledge of the characteristics of nucleic acid as parameters of sexing the fish. The study also indicates that although male fish have higher values than female fish, both the sexes are biochemically and nutritionally better.
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Nuclic acid content in tissue of the fish N. notopterus collected from different aquatic bodies

100%
Ravikiran K., Kulkarni R. S.
International Letters of Natural Sciences
|
2015
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tom 01
Nucleic acid content in brain, liver, kidney and gonads of the freshwater fish Notopterus notopterus collected from different aquatic bodies were studied during pre-spawning phase of the reproductive cycle. The three different aquatic bodies selected were Saradgi nala, Bennithora River and Bheema River and their physiochemical parameters also studied. The present study of nucleic acid content in brain, liver, kidney and gonads of the fish Notopterus notopterus collected from aquatic body Bennithora River shows normal levels of the nucleic acid as compared to that of fish from other two aquatic bodies. The normal content of nucleic acid content of N. notoptuers in the aquatic body Bennithora may be due to favorable environmental condition for survival, growth, distribution and reproductive activity.
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Fish fauna of Kurikotta Bridge Bennithora River, Gulbarga district of Karnataka, India

81%
Ravikiran K., Kulkarni R. S., Padashetty S.
International Letters of Natural Sciences
|
2014
|
tom 21
The present study deals with the fish fauna of Kurikotta Bridge Bennithora River, Gulbarga district of Karnataka. The study was undertaken for a period of one year and monthly collections were made from April-2013 to March-2014, in four sites. The result of present study reveals the occurrence of seventeen (17) fish species belonging to five orders. The order Cypriniformes was dominant with nine (9) followed by order Siluriformes (4) Channiformes (2), Mastacembelidae and Osteoglossiformes each with one species.
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A preliminary survey of amphibians and reptiles in around Gulbarga University Campus, Karnataka, India

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Jadesh M., Kamble P., Manjunath K., Ravikiran K., Padashetty S.
International Letters of Natural Sciences
|
2014
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tom 22
The study involves survey of amphibian and reptile in and around Gulbarga University Campus. Survey was conducted from Jan 2012 to March 2013. The survey methods involved careful visual estimation of amphibians and reptilian in all the possible habitats present in the study area. The objective of the study included evaluate of species composition, relative abundance and distribution of amphibian and reptile of the chosen area. During survey a total of 16 species of herpetofauna identified belonging to 12 families, which includes 9 species of snakes, 4 species amphibians, 3 species of lizards.
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