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What is the yield of river shrimp per mu?
1. What is the yield of shrimp per mu?
The yield of shrimp per mu is about 3000 kg, but the yield will be different due to geographical environment, varieties, breeding management technology and other reasons. Generally speaking, the breeding management technology is good, the variety is good and the geographical environment is good. An acre can yield about 3000 kilograms.
Second, what do river shrimps eat?
Shrimp is an omnivore, which feeds on plankton in its infancy. The main food of adult shrimp in natural waters is various benthic small invertebrates, aquatic animal carcasses, sessile algae, various filamentous algae, organic debris, plant debris and so on. Cultured shrimp can eat all kinds of commercial feeds, such as distiller's grains, bean dregs, bean cakes, silkworm chrysalis, mussel meat, wheat flour, fish meal, rice, snails, etc., especially maggots. When the feed is not enough, it will eat by itself. It has a negative phototaxis to light, lurks in the dark during the day and comes out to eat and move at night. So most of the feed is put in when it is dark.
Compound feed can be used under artificial breeding conditions, especially animal feed such as snail meat, earthworm, small miscellaneous fish, fly maggot and silkworm chrysalis, so it is better to add some animal feed in the breeding process.
Macrobrachium nipponense belongs to omnivorous shrimp, and its food requirements are not strict. Young shrimp feed on plankton, followed by aquatic insects, plant debris, organic debris, aquatic animal carcasses and so on.
Under the condition of artificial culture, adult shrimp can eat various fish feeds (rice bran, raw bran, bean cake, mussel meat, snail meat, fish), especially fermented feeds such as distiller's grains.
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