Survival, Growth and Production of Penaeus monodon in Modified- Extensive and Semi Intensive Culture Systems of Andhra Pradesh, India

摘要

An analysis was made on the stocking density, survival, growth and production of Penaeus monodonudin semi intensive (SI) and modified extensive (ME) shrimp culture ponds located in East Godavari district ofudCoastal Andhra Pradesh, India. Survival of shrimp in the ME systems with low stocking densities is higher (56 -ud88%) than in the SI systems (12.3 – 52%) with higher stocking densities. Growth of shrimp is dependent not onlyudon the stocking density but also on the management practices. Although the percent survival is more in ME systemudthe growth is much faster in SI system owing to better management practices. Weight gain of shrimp was moreudrapid in the SI system than in the ME system initially up to 90 days of culture (DOC) but the trend was reverse in theudlater age of culture period. The optimum stocking density for achieving maximum production in the area isudsuggested as 10-15 individuals / m2 in SI ponds and 3-5 individuals / m2 in ME ponds.