The Rottweiler marsh shrimp, also known as freshwater long arm shrimp, commonly known as big head shrimp, Malaysian prawns and Thai shrimp, etc., is a large freshwater shrimp. Native to the Indo-Pacific region, the Rottweiler Swamp Shrimp can live in all types of freshwater or brackish freshwater waters. Rochester is an individual large high-protein economic shrimp, miscellaneous food, fast growth, short breeding cycle, good meat quality, high nutritional value, and can be sold live shrimp, is welcomed by the majority of consumers of valuable products. Rochester shrimp for the benthic shrimp, like to live in the fresh water, grassy environment, generally out at night activities for food. Food for omnivorous, artificial culture can be fed with feed.

(1) salinity of the salinity of the weak adaptability, but can grow in the salinity of 5 water environment. Tests have shown that the juvenile Rochester prawns in the salinity of 5.2 of the water environment for 30 days, its weight is relatively close to the freshwater control group, in the salinity of 5 of the water quality of the Rochester prawns after 4 months, the survival rate of up to 84%, but its growth rate will tend to slow with the increase in salinity. Therefore, the Rochester prawn is suitable for breeding in low salinity saline water.

(2) temperature belongs to the warm water freshwater shrimp, Rochester prawn larvae suitable for the growth of the temperature range of 24 ~ 30 ℃, the optimal water temperature of 26 ~ 28 ℃. In the appropriate range, Rochester shrimp with the rise in temperature, growth and development accelerated. Prolonged periods of time in the low temperature environment will cause the death of Rochester shrimp, when the water temperature is lower than 23.1 ℃, Rochester shrimp larvae activity decline; water temperature is lower than 14 ℃, a few days will die.

(3) the carbonate alkalinity and pH Rochester rosenbergii suitable pH range between 7.6 to 8.4, the carbonate alkalinity has a strong tolerance for carbonate alkalinity, carbonate alkalinity of 12 mmol / liter of saline water can be successfully cultured, cultivated specifications for the adult shrimp 50 grams / tail

(4) dissolved oxygen Rochester rosenbergii have a strong adaptability to low-oxygen, the growth of suitable dissolved oxygen Range 3 to 6 mg / liter, when the water dissolved oxygen is less than 3 mg / liter, appetite is affected. In saline aquaculture, should maintain the dissolved oxygen in the water above 5 mg / liter.

(5) food rosenbergii is an omnivorous shrimp, shrimp stage to the plankton is the main, a wide range of adaptability to artificial feed.

This article is derived from: China Agricultural Publishing House, "Conservation of Natural Resources"