A preliminary report on effect of pulsed magnetic fields on fresh water fish (Labeo rohita) chromosomes.
J Environ Biol
;
2004 Jul; 25(3): 329-32
Article
in English
| IMSEAR
| ID: sea-113752
ABSTRACT
Marine-life scientists around the world are already carrying out investigative trials to obtain higher yields under in-captive breeding conditions, on both edible varieties and ornamental fishes with optimal inputs. However, for such trials to succeed there is a need for genetic improvement. The idea that fish production can be enhanced by genetic manipulation is gaining acceptance, as there is a strong possibility that qualitative improvement of economically important traits can be achieved by identifying and utilizing more effective genotypes. In the present communication a tentative plan for genetic manipulation of fresh water fish using controlled, pulsed magnetic fields, is being discussed. Chromosome preparations of Labeo rohita were made using Colchicine-Methanol-Acetic acid air drying technique, using tissue from gills. The fish were exposed to Pulsed Magnetic Field (PMF)with intensity 0.2 Gauss, pulsing at 50 Hz frequency (sine wave) for 6 hours / day for a total period of 30 days inside specially designed magnetic field enclosures. The karyological investigations revealed no distinct difference between "test" and "control" groups.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Chromosomes
/
Electromagnetic Fields
/
Fishes
/
Fresh Water
/
Gills
/
Karyotyping
/
Animals
Type of study:
Qualitative research
Language:
English
Journal:
J Environ Biol
Year:
2004
Type:
Article
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