What should I pay attention to when feeding in shrimp ponds?

(1) According to the change of feeding habits of Macrobrachium nipponense and the demand for nutrition at different growth and development stages, Macrobrachium nipponense larvae feed on zooplankton, while adults are omnivorous, eating both animal bait and plant bait. Therefore, in the process of shrimp culture, in the stocking stage of shrimp larvae and shrimp species, animal bait should be given priority, and a large number of rotifers, cladocera and copepods should be cultivated for young shrimp to prey on by applying sufficient base fertilizer and timely topdressing. When the young shrimp grows to more than 2 cm, animal bait and plant bait can be mixed, pulped and fed. When the shrimp is more than 3 cm long, the proportion of plant bait should be appropriately increased. August-September is the rapid growth stage of freshwater shrimp, so the daily feeding amount should be increased, and the feeding amount of plant bait can account for 70% of the total; 10 ~ 1 1 is the stage of accumulating nutrients and preparing for overwintering. At this time, the feeding amount of animal bait should be increased to fully meet the nutritional needs of freshwater shrimp, promote its growth and increase commodity specifications.

(2) According to the different living habits and fishing seasons, feed the freshwater shrimps reasonably. The freshwater shrimps have the habit of lying in the daytime and coming out at night, and they come out for food at night, and they like to move in the aquatic plants in the shallow water area of the shrimp pond for food. Therefore, the feeding in the freshwater shrimp pond is generally 2-3 times a day, and once at 8: 00 and 17: 00 respectively. The feeding is mainly in the evening, and the feeding amount should account for 70% of the whole day's feeding amount, so as to achieve regular, qualitative and quantitative feeding and even feeding.

(3) Adjust the feeding according to the weather, water quality changes and the feeding status of freshwater shrimps. Because the daily weather and water quality conditions are not exactly the same, it will directly affect the activities and feeding of freshwater shrimp. Therefore, we should patrol the pond every morning and evening, listen to the weather forecast, observe and understand the water quality changes in the shrimp pond and the feeding situation of the freshwater shrimp, and provide scientific basis for adjusting the feeding amount. Under normal circumstances, the weather is fine, the water quality is good, and the activity of freshwater shrimp is normal, so more bait should be given appropriately; Feed less in rainy and sultry weather. More bait should be fed during the growing season of freshwater shrimp; Feeding should be less at the stage of shrimp seedling, shrimp seed and shrimp growth in the pond. The specific method is: after feeding 1 hour in the shrimp pond, check the feeding situation of freshwater shrimp. If the bait is eaten within 1 ~ 2 hours, the amount of bait should be appropriately increased the next day, and if it is not eaten, the bait should be reduced.

The content of this paper comes from: Investigation and Identification of Species Resources by China Agricultural Publishing House.