Disinfection of Pagrus Pagrus Eggs With Glutaraldehyde and Embriyological Development

For the article titled “Disinfection of Pagrus pagrus (L., 1758) Eggs with Gluteraldehyde and Embryological Development” published by Ege University, Faculty of Fisheries in 2008, we shared the knowledge and possibilities of our company with our esteemed university during the research period. Our company has always been and will continue to be open to support requests from related faculties of our universities. We are proud to be able to contribute to the development of scientific methods and conducting researches, and to share our knowledge, with the awareness that our industry will progress in this way in national and global terms and reach the levels that can meet the increasing nutritional needs of the world population.

Below, you can find the research article which we contributed with our facilities’ resources that our company has:

E.U. Journal of Fisheries & Aquatic Sciences 2008
Volume 25, Issue (2): 159–163

© Ege University Press
ISSN 1300 – 1590

Disinfection of Pagrus pagrus (L., 1758) Eggs with Gluteraldehyde and Embryological Development

Erkan Can
Ege University Faculty of Fisheries, Aquaculture Section, 35100, Bornova, İzmir, Türkiye


In this study, it was investigated to fighting methods with the large number of pathogenic microorganisms which transferred the larval production from brood stock, and effect of the glutaraldehyde (Merck, 25%) that was used as a disinfectant to red porgy (Pagrus pagrus L., 1758) embryological development, the hatching rate and the bacterial flora were searched. The eggs were disinfected with 200 ppm glutaraldehyde; 2, 4, 8, 16 min. at four different contact times. The daily hatching rate and embryological development were determined with 3 triplicates for every treatment, and bacteria colonies were counted by Petrifilm Flora Total (Laboratoire 3M Sante, France) agar planting, as well. At the same time the control groups were established at triplicate and were made the comparisons. The control groups (without treatment) were included in all trials. In this study, it is found that the optimum CT treatment is 1600 for red porgy eggs at 18ºC. In all 1600 CT treatments the bacterial growth were inhibited. In all 3200 KS treatments the hatching rates were decreased and hatching time was delayed. After CT=1600 values it was observed some morphological problems after 8 blastomer stages. Considering the C*T values change with the species and the temperature, it is very important the determination of the disinfection procedures for different species on aquaculture. 

Key Words: Glutaraldehyde, Pagrus pagrus eggs, disinfection, embryological development, survival rate.