New technology of Tuyuan culture

Rational use of space to build aquaculture ponds in order to make use of limited space, flat pond culture should be improved to three-dimensional pond culture. The middle 60cm is wide as the sidewalk, with brick and cement board structure on both sides of the pool, each floor is 40-45cm high, the pool depth is 20-25cm, and the edge pasted glass strips (smooth escape prevention) is 8 stories high. the breeding area of each room has increased from less than 20 square meters to 120 square meters now.

According to the habits of breeding soil yuan like to live in soft and moist soil, the best preparation material soil is to use odorless poplar, willow, paulownia tree saw foam 70%, vegetable field (or old wall soil) contains more humus fertile soil 28%, plant ash or cow dung 2%. Mix it with sieve 4, spray it with water, accumulate and ferment for 10 days, and then use it for as long as possible. Spray 0.2% salt water when you use it, grasp the humidity by hand, drop it into a ball, and put it into the pool with a thickness of 15cm.

To grasp the stocking density in different ages, it is necessary to grasp the appropriate density, such as too large stocking density, uneven growth and development, too small easy to cause material soil consolidation. The best density is 200000 larvae per square meter, 120000 mung beans per square meter, 25-30 000 broad beans per square meter, no more than 10 000 adults per square meter, and a maximum of 4000 eggs per square meter.

The nutrition of the feed should be omnivorous insects, which is characterized by eating fresh food, wheat bran and rice bran most, followed by corn flour, chopped grains, peanut cake, soybean meal, miscellaneous fish, meat and all kinds of grass leaves, melon peel, chicken, cow dung and other coarse materials. If feed such as grass grows slowly, the full price feed can use 72% wheat bran, 20% corn flour, 5% bean cake, 3% animal feed (cooked feed). Scald with boiling water when feeding, plus 30%, 40% green vegetables or melons and fruits. When fed with full-price feed for 5 to 6 months, the individual can grow into an adult.

Timely feed Tuyuan for diurnal and nocturnal insects, start activities after 2 hours every evening, feed every day at dusk, finish eating concentrate on the same day, hate immortals and boos? What? What do you mean? Xi Jiancheng, Cheng Jian, I am in danger? The ash of anger? Gu is stingy and stingy. Temperature and humidity control br / > there is little difference in soil element humidity among different ages. The soil element humidity is slightly better in nymph stage, but not less than 40%, and slightly wet in adult stage, but not more than 90%. Temperature is an important condition for soil element growth. 2 ℃ ~ 10 ℃ below zero will freeze and more than 45 ℃ will begin to die. Heat prevention or humidification can spray water on the surface, but it should not be too wet. Ventilation should be paid attention to when the humidity is high. The thickness of material soil should be increased properly in winter, and a stove should be set up in the middle of the feeding room, but the smoke must be discharged outdoors, the temperature of three-dimensional culture in a single room can reach about 30 ℃, the growth of soil element is normal, and the yield is the same as that in summer.

When the temperature is suitable and the feed is sufficient, the soil yuan will grow up in five and a half months, which should be screened out in time, dried and sold.