I. Conditions
1, the surrounding water is rich.
It is very important to choose the location when raising shrimp. You should choose a place with abundant surrounding water sources and good irrigation and drainage. You can build a pond in this place, or raise shrimp in rice fields. Shrimp is an omnivorous animal and basically won't be picky eaters. The commonly used meat feed includes snails, livestock scraps, green feed includes vegetables, upland grass, and concentrated feed includes corn, wheat, and grains. When raising shrimp, it is necessary to remove the enemy in time.
2, the water quality must keep the PH value between 7.8 and 8.6.
The water quality in the shrimp pond must be kept at PH 7.8-8.6, not higher than 9. 1, and new water sources should be injected frequently, and the transparency of the water quality in the shrimp pond should be kept at about 30-40 cm, and the quicklime solution should be sprayed into the pond regularly to adjust the water quality to prevent diseases.
Second, technology
1, pond treatment
Before the pond is filled with water 1 week, the diluted solution of em bacteria liquid and the insect-proof liquid made of em bacteria liquid are used to replace lime, etc. to disinfect and purify the pond.
2. Water purification
3- 10 days before stocking, the water surface was sprinkled with em bacterial liquid diluent. Depending on the water quality, start 15 days 1 time, and then 1 month 1 time. Where the water quality is poor, shorten the sprinkling time appropriately. In order to spray evenly, the stock solution of bacteria solution should be diluted before use.
Matters needing attention in water depth
1, in general, the suitable depth of water for shrimp culture is 0.9- 1.5 m, the suitable growth ph value of shrimp is 7.7-8.8, the suitable hardness of water for shrimp culture is above 250mg/L, and the suitable total alkalinity is above 80. If it is lower than 80 or higher than 400, certain protective measures should be taken.
2. In the process of shrimp culture, it will float out of the water to feed. If the water body is too deep, it is not conducive to shrimp feeding and shrimp growth. Therefore, in the process of shrimp culture, it is necessary to control the water quality and water level, which must be conducive to shrimp growth.
3. In shrimp culture, the quality of fat water is generally measured by the color, transparency and freshness of the pond water. The fat water is also affected by environmental factors and nutrient factors. If the fat water becomes particularly poor, corresponding measures must be taken to protect it.