TO STUDY DIFFERENT PRESERVATION TECHNIQUE IN FISH FOR ACADEMIC USE
Loading...
![Thumbnail Image](assets/images/Item.jpg)
Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
Abstract
The fishes like Clarias batrachus, Rastrelliger kanagurta, Gerres filamentosus,
Nemipterus japonicus, Etroplus suratensis and Rhabdosargus sarba were preserved by using
plastination technology. They were collected from fish stall centers, dissected and were fixed
with 10% formal saline for 3 days. Dehydration was carried out in four changes of pure
acetone for a period of 7 days depending on the size of the specimen. Impregnation was
carried out by using combination of 15% tea cups and thermocol solutions prepared by
recycling plastic tea cup and thermocol at room temperature for 15 days. Various fishes like
Clarias batrachus – 67.70%; Rastrelliger kanagurta – 63.21%; Gerres filamentosus –
65.18%; Nemipterus japonicus – 67.86%; Etroplus suratensis – 61.83% ; and Rhabdosargus
sarba - 64.97% showed over all shrinkage percentage at room temperature. The color
change was black in Clarias batrachus; slightly whitish in Gerres filamentosus; and slightly
yellowish in Nemipterus japonicus against their normal color. But there was no change in
any morphological details except hardening.
Another new innovative technique was developed for preservation of the specimens.
i.e., The Elnady technique or Glycerin dry mount method. The fishes like Rastrelliger
kanagurta and Gerres filamentosus were collected from fish stall centers. Elnady technique
was carried out by using pure glycerin in impregnation and corn starch in curing step. Two
Rastrelliger kanagurta and one Gerres filamentosus fishes were preserved. Rastrelliger
kanagurta (A) – 21.00%; Rastrelliger kanagurta (B) – 20.91% and Gerres filamentosus –
8.33% showed over all shrinkage percentage at room temperature. The color was normal and
consistency became soft and flexible.