Laju Pertumbuhan Udang Air Asin | Pemanenan Vannamei
Saltwater prawn growth rate | Vannamei Harvesting
The vannamei shrimp, Penaeus Vannamei commonly known as white legged shrimp/Pacific white shrimp/Mexican white shrimp is the native of Pacific coast of Mexico and Central and South America. It is grayish white in colour. The maximum weight of female in the wild is 120g and that of male is 80 g. It is an omnivorous scavenger and less aggressive and less carnivorous than the tiger shrimp. It prefers clayey loam soil which can also remain in the water column during culture.
In India, its large-scale introduction was permitted in 2009 with specific guidelines for the import of broodstock, seed production and culture in a highly bi secured environment. In order to eliminate the presence of virus in the seed Specific Pathogen Free (SPF) brood stock has been developed by keeping a number of generations in highly bi secured facility with continuous surveillance. Offspring of SPF shrimp is not considered as SPF unless it is produced and maintained at an SPF facility.
The vannamei shrimp attain 20-25 g size within 90-120 days depending on the stocking density. As it lives in water column, majority of the stock is harvested by cast netting and drag netting which reduces overcrowding and stress. Production of 6-11 t/ha can be obtained with a survival rate of 80%.
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