Freshwater shrimp.

Rochester shrimp is a fast-growing, wide range of recipes, nutrient-rich economic shrimp, large size, up to 40 centimeters, weighing 600 grams, native to Southeast Asia. Pond culture shrimp body more gray-yellow, do not tolerate low temperatures, the growth of suitable water temperature of 20 ~ 34 ℃, the water body of dissolved oxygen requirements are high.

Rottweiler shrimp for omnivorous crustaceans, favoring animal food, artificial feed requirements of crude protein content in 37 ~ 38%, of which the animal protein content of about 20%, plant protein accounted for 17 ~ 18%.

Extended information:

Misconceptions of water quality management

1, the water quality is not fertile in the early stage of seedling casting. After clearing the pond, the water quality has not been fertilized, it is eager to cast seedlings. As the pond water body is thin, the lack of biological bait available for young shrimp feeding, affecting the growth and survival rate of young shrimp.

2, unscientific water change. Breeding in the middle and late, the pond water is too fat, shrimp farmers often a large number of one-time water change (especially where water change is convenient), causing water temperature fluctuations in the pond is too large, affecting the shrimp feeding and growth.

3, blindly deepen the water level. Rhododendron shrimp culture of the optimal depth of 1.5-1.8 meters, the water body is too shallow, the water temperature fluctuations, dissolved oxygen is reduced, easy to affect the growth of shrimp; water body is too deep, the bottom of the pond can not be exposed to sunlight, phytoplankton less, photosynthesis produces less dissolved oxygen, coupled with the bottom of the pool of organic decomposition, so that the lower water dissolved oxygen is getting less and less, and aggravate the deterioration of the substrate.

4, the selection of the oxygenator is not scientific. Oxygenator, which applies to shallow water ponds with a depth of 1.5-2.0 meters; another is the "impeller" oxygenator, which applies to deep water ponds with a depth of 2.0-3.0 meters.