The benefit of mixed culture of turtle worms in the same pond is high.

Under the condition of micro-running water, amphibian turtles are mixed with water @ # @ 254 turtles in one pond, and water earthworms are used as the main feed or auxiliary feed for turtles, which can make turtles stronger, grow faster, shorten the breeding cycle and reduce the feeding cost. more than double the economic benefit. And in the whole process of feeding to avoid the pollution of hormone drugs to the products, in line with the basic conditions of pollution-free food, more popular with consumers. The main technical points are introduced as follows:

First, build a pool

Choose the place with abundant water source, good water quality, convenient irrigation and drainage, quiet environment, open and sunny place to build a rectangular culture pond. The length of the pool is 15 meters to 30 meters, the width of the pool is about 5 meters, the wall of the pool is 0.7 meters high, and the slope of the bottom is 0.5% to 1%. Pool length along with the direction of water flow, inlet and outlet should be installed anti-escape equipment, not only to prevent turtles fleeing, but also to prevent enemy invasion. In order to avoid the dead corner of the current, the four corners of the pool had better be made into an arc. If the length is not long enough to build a rectangular pond, it can also be built into a circular or curved manifold culture pond.

There are rectangular soil beds in the pond, the border length varies with the pool width, the width of the border is about 1.5 meters, and the height of the border is 0.25 ~ 0.3 meters. The distance between the border and the border and between the border and the pool wall shall not be less than 0.2 meters, so as to prevent the enemy from invading. Soil materials rich in organic matter such as farmland manure and silt should be selected as far as possible to facilitate the rapid growth and reproduction of earthworms. A gentle slope mound 0.3 to 0.8 meters above the water surface is set up on one side of the pool or on the inner edge of the annular pool as a resting and spawning place for turtles, with an area of 15% to 20% of the total area. Grape, towel gourd or other vine crops are planted around the pond, and the sky is erected to form a shady environment, which can be artificially adjusted to achieve the best shaded condition.

2. Cultivation of earthworm-based materials

Pour water into the pond and flood the border surface, first spread a layer of bagasse or chopped straw and fallen leaves on the border surface as a loosening agent, with a dosage of 2 kg per square meter, and then spread cow dung or pig, sheep and chicken dung on it. Sprinkle about 0.2 kg of fully fermented royal rice flour and rice bran and wheat bran mixture on it. Poor conditions can also be used alone as cow dung layer, or spread cow dung, pig manure, sheep manure, chicken manure mixture.

Introduction and breeding of earthworms

After the manure on the border was fully fermented for about 10 days, worms could be introduced when the temperature was 25 ℃ ~ 28 ℃. In general, it is appropriate to choose Japan's Daping II, 2.5 kilograms of seed worms with feed and eggs per square meter, and spread them evenly on the surface of the base material. Those without Daping No.2 can be introduced from other earthworm farms, or the water earthworms that are accustomed to the aquatic environment, together with eggs and mud, can be collected and spread on the border surface from the nearest sewers and drains, so that they can grow and reproduce on their own. It must be noted that the water level of the culture pond where water earthworms are introduced should be as high as or slightly higher than the surface of the substrate.

Earthworms are accustomed to the slightly acidic environment with a pH value of 5.5-7.8, and especially like to eat palatable bait with sweet and sour taste. Grain, livestock and poultry manure, domestic sewage, organic garbage and slaughtering and processing wastes are its high-quality feed sources. However, any feed must be fermented before it can be fed, otherwise the young worms and eggs will be burned to death at a high temperature of about 80 degrees Celsius during fermentation or secondary fermentation.

Earthworms can eat the surface feed after 5 ~ 7 days. The surface waste containing most of the feces should be scraped off and applied as organic fertilizer, and 5 kg of fermented cow manure should be sprinkled per square meter. From 15 to 20 days after introduction, earthworms have been propagated in large numbers and can be put into turtle breeding.

IV. Release and management of turtles

Release density: in terms of the area of the whole pond, 30 young turtles of one winter age, 15 young turtles of the second winter age, or 3 ~ 5 adult turtles over the age of three winters can be put in every square meter. It should be noted that the individual disparity should be divided into a pool, so as to avoid injuries or even disability caused by big bullies and small bites. Before entering the pond, turtles are disinfected and sterilized with 8%-10% salt water to avoid getting sick.

Water quality management: industrial wastewater, poisonous potions for the treatment of fish disease or paddy field insecticidal are strictly prohibited to enter the pool, otherwise it will cause heavy losses. In addition to temporarily closing the inlet and outlet when changing water, the culture pond should maintain a micro-flow of 0.01 cubic meters per second for a long time to meet the low oxygen consumption needs of turtles and earthworms.

Feeding and management: whether earthworms are the staple food or auxiliary feed of turtles, let them eat on their own, just pay attention not to let them concentrate on a certain place and bite and cause disability, generally there is no need to spend a lot of effort to manage.

Both fresh and dry earthworms contain relatively high crude protein, in which the content of amino acids is 35.2% (dry matter ratio), so it is a high-quality high-protein feed for turtles, turtles, aquatic animals and livestock and poultry. According to the comparative experiment of turtle and turtle pond mixed culture of water earthworms as feed, the tortoise yield of the experimental group was 36.4% higher than that of the control group, and the effect was very obvious.