Mote dwarf elephant grass, a fishery forage grass
Mote dwarf elephant grass is a gramineous forage introduced from the United States a few years ago. The grass is perennial, with a plant height of 0.8 mi 1.4 m, short and many nodes, a large number of leaves per plant and strong tiller regeneration ability. It is more hardy, the aboveground part is withered and yellow in winter, and the underground part survives. Sprouting in spring, the temperature begins to grow at about 12 ℃, and likes to grow in places where the soil layer is deep, fertile and moist.
This kind of forage grass has high yield and high nutritional value. under good water and fertilizer conditions, it can produce 15,000-20,000 kg of fresh grass per mu, and its leaf quantity accounts for more than 80% of the total grass. Hay contains 12% Mel 14% crude protein and has good palatability. if well managed, the new species 45 MUE can be cut and used for 55 days, and can be harvested every 15 Mel 20 days or so. The first stubble is 5ml 10cm, then the reclaimed grass can be cut flat and can be used continuously for 8 years.
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What does the river eel eat? How to "domesticate"
River eel is a carnivorous fish. Generally speaking, river eels feed on clams, shellfish, clams, fish, shrimp and animal carcasses. In artificial feeding, artificial formula feed can be put in, but the protein content must be more than 45%. River eel is a nocturnal animal, mainly foraging for small natural animals. In artificial feeding, the stocking density is high, which can not be satisfied only by natural bait, so it must be supplemented by artificial feed. At the beginning of feeding artificial feed, the river crab is not used to it and does not come to eat, so it must go through the stage of "domestication" to make it accustomed to eating artificial feed and develop the habit of eating regularly and in a fixed position.
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Cautions for fish disinfection
① In the production practice, the specific drug disinfection should be determined according to the local epidemic fish disease and drug source; the sterilized containers should be basin, barrel, fish bag, tile jar, etc., and metal products should not be used.② Disinfection time: 8-9 p.m. or 3-4 p.m. on sunny days; long soaking time, thorough killing of pathogens, but long time, insufficient dissolved oxygen in water, will cause fish floating head or death. Therefore, special attention should be paid to the dynamics of fish during specific operations. When the fish in the disinfectant does not tolerate
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