It is said that “Healthy cultivation begins with healthy Seed” , which leads to higher survival SPF seed, faster growth, with bigger final size, low mortality and high market value shrimp.
Tiger prawn is common known as Penaeus monodon, earlier it was the second mostly cultivated prawn species in the world, now it gradually got replaced by L.Vannamei. It occurs in wild in the Indian Ocean and in the Pacific Ocean from Japan to Australia.
It can grow to a length of 36 cm but generally Females can reach about 33 cm long, but are typically 25–30 cm long and weight 200–320 g, males are slightly smaller at 20–25 cm long and weighing 100–170 g. The carapace and abdomen are transversely banded with alternative red and white. The antennae are grayish brown. Brown pereiopods and pleopods are present with fringing setae in red.
Farming of black tiger shrimp has virtually been abandoned since the early 1990s after rampant spread of white spot disease. However, seeds of domesticated, disease-free black tiger shrimp are now available at the Rajiv Gandhi Centre for Aquaculture in Andhra Pradesh. First breeding success of Tiger shrimp was by Phuket Coastal Aquaculture Station Department of fisheries in 1972.
Due to their larger size and better survival, captured wild seeds were used commonly in south Asia for extensive ponds, which require a minimal amount of seed for stocking. However, the use of wild seeds has been reduced, due to overfishing and the outbreak of white spot disease in shrimp nursery grounds. Therefore most Penaeus monodon grow-out farms now rely solely on hatchery-produced seeds.
Post larva undergoes 3 stages: Nauplius, Protozoea, Mysis.
Each spawner releases eggs from 248,00 to 811,000, the eggs are small spherical and 0.25 to 0.27 mm in diameter
Hatchery facilities:
- To prevent diseases tanks and facilities in the hatcheries should be cleaning properly before each production cycle begins.
- Proper infrastructure
- Inlet water quality and treatment
- Development and following of Standard Operating Procedures
- Responsible use of chemicals
- Assessment of health status of stocks through laboratory testing
Post-larval (PL) quality o f Penaeus monodon is determined by
Visual observations
Length and weight measurements,
Stress tests by salinity drop to less than 50% o f the ambient
At 100 ppm and 200 ppm concentrations formalin is exposed for 2 hours.
The successful farming of tiger shrimp (Penaeus monodon) in India is mainly due to the existence of some 300 hatcheries whose capacity to produce 12 000 million post larvae (PL) annually has provided an assured supply of seed.
For any questions, details, suggestions we also have a application called AquaBrahma where aqua farmers, technicians, hatcheries can get connected.
Source: Aquadeals