Dr Vaitheeswaran Thiruvengadam
Hatchery Technician and Head Victoria Treasures Limited East Africa
Title: SCIENTIFIC APPROACHES TOWARDS RAINBOW TROUT FARMING IN INDIAN HIMALAYAN REGION
Biography:
I am Dr Vaitheeswaran Thiruvengadam (DoB: 03-06-1969), M.Sc., M.Phil., Ph.D., (Zoology/Fisheries Science), Bharathidasan University, Trichy, India. He holds over 24 years of fisheries biology and resource management and finfish and shellfish taxonomy, and he has received and awarded (Ph.D) Endeavour International Postgraduate Research Scholarship Award (AUS $ 73,200), Doctor of Philosophy, School of Aquaculture, University of Tasmania, Australia. He has reported more than 66 species of finfishes, shellfishes and marine invertebrates were reported for the first time from Indian waters at Gulf of Mannar, Southeast coast of India. I have been working as Lecturer 1, Department of Aquaculture, DMI St. John the Baptist University, Malawi. I have fisheries experience with 24 years in fisheries biology and resource management project was handled with wild extensions and scientific community with hatchery, feed management, juvenile, cage culture Victoria Lake at Uganda, and culture of various species, species like finfish and shellfish groups. Dr. T. Vaitheeswaran has over 83 substantial publications, including 24 papers an international peer-reviewed publications, 22 National peer-reviewed papers, 6 international conference papers, Renowned Speakers of International conference at Australia, 13 edited and co-edited book, monographs, and training manual, 3 reviewed chapters, 201 external reports in English and Tamil newspaper reports at Gulf of Mannar, India.
Abstract:
Length-Weight relationship was studied in Oreochromis lidole (Trewavas, 1941), for Republic of Malawi. The slope value (b) estimated for O. lidole of both sexes was found to be 1.4889. The regression equations calculated for both sexes was Log W = -2.2636 + 1.4889 Log L The correlations coefficient was found to be significant (P<0.01). The significant difference between sexes of this species ‘F’ value was at 1% level. The b value differed from the ideal cube law of ‘3’ as is with the case of length-weight relationship studied in Mangochi, Malawi, Central Africa. The slope value was compared here could be very useful for comparison with the tilapia species in other geographical locations.
Dr A K Singh
Former Director ICAR-Directorate of Coldwater Fisheries Research, Bhimtal-263136, Nainital) Uttarakhand India and Present address: Emeritus Scientist National Bureau of Fish Genetic Resources, Lucknow -226002 (Uttar Pradesh) India
Title: Scientific Approaches Towards Rainbow Trout Farming in Indian Himalayan Region
Biography:
Abstract:
The mountainous regions in the Himalayan states of India is endowed with copious amounts of highly oxygenated pristine freshwater highly suitable for culturing rainbow trout, which is a robust and fast growing salmonid fish farmed across the globe. Eventually after its introduction in India in the early 20th century, rainbow trout is fast becoming the most remunerative coldwater fish that provides livelihood and food security to the hill population. The present annual rainbow trout production in India is nearly 842 tons from 62 government trout farms and 660 private trout production units distributed across the states of Jammu & Kashmir, Himachal Pradesh, Sikkim, Arunachal Pradesh and Uttarakhand. Serial and parallel flow through raceway culture systems is widely used. In terms of seed and feed production capacity, there are 32 government affiliated rainbow trout hatcheries with an estimated production capacity of 13 million eyed ova and 3 well equipped feed mills with an installed capacity of nearly 10 tons per day. Considering the huge gap between the actual and potential trout production, the ICAR-Directorate of Coldwater Fisheries Research is undertaking concerted research and development efforts to expand and intensify rainbow trout production, in partnership with the concerned state fisheries departments. Spatial decision support system has been employed to generate GIS based site suitability maps for trout culture. To minimize land and water usage in trout culture, water recirculation system has been developed on trial basis. Laying the base for genetic improvement programs, genetic variability in different rainbow trout stocks has been characterized using DNA marker technologies. Moreover, rainbow trout brood banking and triploid production trials have been initiated. Comprehensive disease surveillance is continually undertaken and diagnostic/control methods are being developed. Cost-effective feeds with better feed conversion ratio have been developed and the use of sustainable feed ingredients is being evaluated. Farm operation and activities like fish seed transportation are being scientifically optimized. The concept of cluster farming modules and culture chains are also gradually introduced and promoted by sharing technical knowledge and science base culture technology that facilitate high returns on investment. All these multipronged strategies will stimulate vertical and horizontal expansion of trout production in India which will also help the neighbouring countries in advancing trout farming practices.