Rotary Black Algae: A beautiful snack for grass carp. Hydrilla verticillata is a kind of draught aquatic plant that grass carp prefers to eat. In the ponds with grass carp as the main species, the specific method for cultivating fish species using black algae is to dry the bottom of the fish ponds in the middle and late June and leave about 15 cm thick mud. pond scum. And then from the river ditch, etc. to pull more than 15 cm in the rotation of the black-green algae transplanting pool (strain, row spacing of 20 cm to 30 cm is appropriate). After transplanting, the pool water should be maintained at a depth of about 20 cm to promote rooting and branching of black algae. After 15 days to 20 days, when the seedlings basically covered the bottom of the pool, the pool water was deepened to 40 cm to 50 cm to promote its upward growth. In mid-August, the length of the stems of black algae in the fishing pond is about 40 cm, and fish species can be released. At the time of release, grass carp and carp should be placed first (2000 mu pieces of grass carp with a length of 5 cm or more and 400 pomfret pieces of carp per acre). After 15 days to 20 days, when the pond water becomes gradually fattened and green, then the carp and carp are put again (400 pigs per mu). The black algae in the pond are generally available for grass carp to eat for 40 days to 60 days. When the grass is basically eaten by the fish, it is timely to feed the appropriate amount of green or fine material.
Ryegrass: Good feed for broodstock. After ryegrass sowing in September, it can emerge from 4 days to 5 days. When the seedlings grow to 10 cm to 13 cm, they can be transplanted. When ryegrass grows to 30 cm, it can be harvested. After reaping, it can be fed directly to the fish pond as a green material. Rye is rich in nutrients and can be harvested 5 to 6 times a year according to the above method.
Bitter leeks: delicacies of grass carp and squid. Bitter leeks are tender, juicy, nutritious and can be harvested 4 to 6 times a year. The sowing time is between early spring and early summer. Apply enough base fertilizer before sowing. When the seedlings grow to 4 to 5 leaves, they will be transplanted into the ditch or hole. When the seedlings grow to 20 cm to 30 cm, they can be harvested for green feed. When harvesting, keep 5 cm to 6 cm. Harvest time should be on sunny mornings or evenings. Harvesting should not be done on rainy days.
In addition, green grass such as Pennisetum, Sudangrass, Synthetic Grass, Water Peanut and Water Hyacinth is a nutrient-rich green material for fish.
Ryegrass: Good feed for broodstock. After ryegrass sowing in September, it can emerge from 4 days to 5 days. When the seedlings grow to 10 cm to 13 cm, they can be transplanted. When ryegrass grows to 30 cm, it can be harvested. After reaping, it can be fed directly to the fish pond as a green material. Rye is rich in nutrients and can be harvested 5 to 6 times a year according to the above method.
Bitter leeks: delicacies of grass carp and squid. Bitter leeks are tender, juicy, nutritious and can be harvested 4 to 6 times a year. The sowing time is between early spring and early summer. Apply enough base fertilizer before sowing. When the seedlings grow to 4 to 5 leaves, they will be transplanted into the ditch or hole. When the seedlings grow to 20 cm to 30 cm, they can be harvested for green feed. When harvesting, keep 5 cm to 6 cm. Harvest time should be on sunny mornings or evenings. Harvesting should not be done on rainy days.
In addition, green grass such as Pennisetum, Sudangrass, Synthetic Grass, Water Peanut and Water Hyacinth is a nutrient-rich green material for fish.
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