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This is a "backyard" hatchery usually owned and managed by the shrimp grower himself using family members or immediate relatives for additional labour. The main goal is to supply his own shrimp farm with the required number of fry and the excess may be sold to neighboring growers. Usually the hatchery site is an extension of the farm house with floor space ranging from a few square meters up to about 1000 square meters. In such hatchery operation, the total production capability seldom exceeds 5 million postlarvae per annum and the hatchery is operated by not more than 2 technical personnel. In Southeast Asian countries, such hatchery entails a capital investment of not more than US$30,000 and operational cost of less than US$10,000 (Kungvankij et al., 1986).
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