Conference presentation
Evaluation of growth performance in a 3x3 diallel cross of 'Macrobrachium rosenbergii' in India
Asian Pacific Aquaculture Conference, 2009 (Kuala Lumpur, Malaysia, 03-Nov-2009–06-Nov-2009)
2009
Abstract
The global farmed production of giant river prawn Macrobrachium rosenbergii was over 200,000 t valued at US$810million in 2006 (FAO, 2008). Its production in India has shown phenomenal increase from mid nineties till 2005, however, since 2006 the production has been showing a declining trend. In 2007 the production stood at 27,000 t a reduction of more than 40% when compared to 2005. Reduction in productivity in major culture areas was the main reason for the decrease in production. Thus a systematic selective breeding program aimed at improving growth rate of this species was very much needed. Central Institute of Freshwater Aquaculture (CIFA), Bhubaneswar, India in collaboration with the WorldFish Center, Malaysia started a genetic improvement programme of this species in 2007. As a part of establishment of base populations, stocks from three geographically distant locations (Gujarat, Kerala and Orissa) that represent different agro-ecological region were brought to CIFA farm facility and reared to sexual maturity. These populations were then involved in a complete diallel cross (3x3) in different mating batches. A total of 2233 prawn juveniles from 30 full sib families representing all the nine cross of the three stocks were tagged individually with Visible Implant Alpha numeric tag (VIA) and stocked for communal rearing at 3/m2 in 400 m2 earthen ponds in duplicate. Prawns were fed with commercial pellet feed at 10% of the biomass per day in the first month. Feed rate was modified every month based on the body weight obtained during sampling. Prawns were harvested for final data collection after 120-135 days of rearing. All the survived prawns were collected, sexed and measured individually (total length, carapace length, standard length, wet weight). Survival rate ranged from 81.4 to 85.1%. Data was analysed using SAS and ASREML software (SAS Institute, 2005). Data analysis revealed significant sex and age effect and non-significant pond effect in harvest weight. Significant difference in harvest weight was observed within and between crosses. Kerala stock was found to be significantly different from Orissa and Gujarat stock. Negative or not significantly different from zero total heterosis effect was observed for different measurable parameters.
Details
- Title
- Evaluation of growth performance in a 3x3 diallel cross of 'Macrobrachium rosenbergii' in India
- Authors
- B R Pillai (Author) - Central Institute of Freshwater Aquaculture, IndiaK D Mahapatra (Author) - Central Institute of Freshwater Aquaculture, IndiaR W Ponzoni (Author) - Central Institute of Freshwater Aquaculture, IndiaL Sahu (Author) - Central Institute of Freshwater Aquaculture, IndiaL Sanga (Author) - Central Institute of Freshwater Aquaculture, IndiaNguyen Hong Nguyen (Author) - WorldFish Center, MalaysiaS C Rath (Author) - Central Institute of Freshwater Aquaculture, IndiaSwagathika Sahu (Author) - Central Institute of Freshwater AquacultureS Mohanty (Author) - Central Institute of Freshwater Aquaculture, IndiaSovan Sahu (Author) - Central Institute of Freshwater Aquaculture, IndiaG Patra (Author) - Central Institute of Freshwater Aquaculture, India
- Conference details
- Asian Pacific Aquaculture Conference, 2009 (Kuala Lumpur, Malaysia, 03-Nov-2009–06-Nov-2009)
- Date published
- 2009
- Organisation Unit
- School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99450121002621
- Output Type
- Conference presentation
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