Autumn and winter intensive green shrimp
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July 29 13:11:42, 2025
At present, it's the critical season for shrimp stocking in autumn and winter. Ensuring high-quality seedlings, maintaining germplasm integrity, managing feed and water quality, and effectively preventing diseases and floating heads are essential to boosting shrimp production at year-end. This article discusses intensive shrimp farming techniques, offering practical insights for farmers.
First, focus on pond infrastructure. Before stocking, it's crucial to dry the pond, clean it thoroughly, detoxify, and expose it to sunlight—moving away from the old practice of raising shrimps in unprepared ponds. After a breeding cycle, a lot of bacteria and sludge accumulate, which can lead to oxygen depletion. Large ponds should be renovated, with increased depth and width. An ideal pond size ranges from 8 to 10 mu, with a water depth of 1.2 to 1.5 meters. A designated shrimp beach and a central drainage system should be included. The pond bottom is disinfected using 60–70 kg of quicklime per pond, followed by 15–20 days of sun exposure.
Second, timely fertilization plays a key role in improving water quality early on, ensuring an adequate supply of zooplankton after stocking. Fermented organic fertilizer is recommended at 150–250 kg per mu. Chicken manure pellets are also promoted due to their high-temperature sterilization process, making them less likely to pollute the water. They also contain potassium, which supports shrimp shell development. Fertilization should occur 4–5 days before stocking. For older ponds, apply 10–15 kg per mu; for new ones, 15–20 kg. If the water remains too light after stocking, increase fertilization by 5–7.5 kg to maintain clear, soft, and cool water conditions, helping prevent algae growth.
Third, proper stocking density is vital. Shrimp stocking typically occurs between late July and early August. Wild shrimp seedlings from Taihu Lake are preferred due to their strong disease resistance, uniform size, and high market value. Seedlings should be 1.5–1.8 cm in size, with a stocking density of 60,000–80,000 per mu. About 10–15 days post-stocking, introduce 800–1,000 summer flowers and 800–1,000 silver carp to help manage water quality.
Fourth, feeding and water management are crucial. Stocking should be done on sunny days. If there are enough red worms in the pond, no feed is needed for 1–2 days. Once the worms are consumed, switch to high-quality green shrimp feed, such as Dajiang brand feed. In the first 15–20 days, use crushed feed, then transition to medium and fine feed. Adding small trash fish can improve nutrition. For each mu, expect 100 kg of autumn shrimp, 150 kg of grain feed, 50 kg of miscellaneous fish, or 750 kg of snails. The total feed cost is approximately 500–600 yuan per mu.
Lastly, disease prevention and head floating control are essential. After 15–30 days of stocking, apply 4–5 kg of lime per acre on sunny days. If bacterial disease is detected, use chlorine dioxide or “Strong Chlorine†at 200 grams per mu. Keep one-third of the pond covered with aquatic plants to prevent algae overgrowth. Use green sand and seaweed to control white water turtles. Install a 3,000-watt aerator every 6–7 acres, running it for 1–2 hours daily around noon. During rainy mornings and early hours, ensure sufficient aeration to prevent floating. Use double-channel nets (60-mesh and 80-mesh) to filter out wild fish and maintain a healthy environment.