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Ryegrass Fish Culture Technology
Ryegrass is mainly used to fill the feed source of fish when there is a shortage of green grass in winter and spring. The seeds are cheap, crude seeds are easy to grow, and there are not many man-hours to be used, the cost of fertilizer is low, and the amount of grass production is high. Therefore, to everyone to promote: First, rye directly feeding. Feeding methods are fed by freshwater fish farming methods. That is, "four settings": positioning, timing, qualitative, quantitative. 1, positioning. Feeding ryegrass requires a fixed food field. When spreading grass, spread it evenly and do not pile together, so that the above ryegrass is not yellowed by the fish feeding, and “stacked†(ie, ryegrass not eaten and fresh ryegrass) is strictly prohibited. Food farms fed with concentrate feed should not be muddy. 2, timing. Fish ponds are usually fed with ryegras once or twice a day, preferably at a higher temperature at noon. When the weather is cold, less or no vote (usually about 7-10 days in the winter without feeding). When the temperature in winter and spring and the water temperature are higher than 15°C, it can be fed in the afternoon and the food can be eaten on the same day each day. The feed can be evenly distributed and the feed can not be neglected, so as to prevent the fish from becoming hungry and affecting digestion and growth. In addition, the daily feeding situation must be based on the "three look" specific conditions for flexible control: 1 to see the fish eating conditions: If the ryegrass are fed soon after eating, should be added to increase feeding, such as a long time , should be reduced. It is generally appropriate to eat within 10-12 hours. 2 Look at the weather: When the weather is clear, ryegrass can be cast more often when the breeze is blowing, and less when there is no wind and rainy weather; In case of a cold wave, it needs to be carefully managed. 3 Look at the water quality: The water color is good, the fertilizer is cool, and the amount can be fed normally. If the water color is too thick, you should reduce the feeding and add new water. In addition, squid species more than 3 inches in size also eat ryegrass very much. Therefore, ryegrass can not only grow fish, but also can castrate and feed fish species. Second, submerged green fertilizer fish. Use ryegrass at the end of winter dry ponds or ponds and reservoir embankment water storage drop-off areas. Between February and April, wait until the ryegrass grows to about 60 cm or more (depending on the situation, it can be cut 1-2 times). Carry out fresh water, then enlarge the size of the fish species into the pool to eat grass, can not be finished for fertilizer, so that it can be used to cultivate plankton. Generally, after 15 days of drowning, it is put into quail and bream species. After flooding ryegrass, there should be other feed or duckweed and royal grass supplements.