Pond culture of grouper fry stocking

When fry are released into the culture system, a rigorous selection process is carried out to ensure only the healthiest individuals are chosen. Stocking density is carefully managed based on local conditions, including water quality, fish size, feed availability, and management practices. This helps optimize growth and reduce stress among the fish. In addition to being caught by local fishermen, groupers' fry are often purchased from suppliers. It's essential to select fry that show strong vitality, have a normal appearance, clear eyes, and no signs of disease or physical damage. The body color should be dark, indicating good health. Fry with deformities, large heads, weak bodies, damaged skin, broken tails, or blind eyes should be excluded from the selection. Once purchased, the fry should be sorted by size before stocking to ensure uniform growth and reduce competition. Stocking density varies depending on several factors, but as a general guideline, for 6 cm long fry weighing around 30 grams, one fish per square meter is recommended. This allows enough space for them to grow without overcrowding, which can lead to poor water quality and increased disease risk. Proper management from the start is crucial for successful aquaculture.

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