CATDOLL : CATDOLL: Loach farming with earthworms or maggots

1. Raising loaches with earthworms or maggots

The reproduction speed and cost are better than that of maggots. However, it is not suitable to feed loaches. It is not that they grow fast just by eating animal feed. Old cows can grow meat just by eating grass every day.

2. How to prepare eel feed?

There are many common sources of eel feed, which can be taken in the following ways:

1. Breeding earthworms

Earthworms are cultivated using raw materials such as cow dung and domestic garbage. The best varieties are Taiping No. 2, Beixing No. 2 and Chizi Aisheng. Earthworms can be cultivated in discarded wooden barrels and basins. A small hole with a diameter of 2 cm can be drilled in the bottom and covered with gauze to facilitate ventilation and drainage. You can also dig holes in places with good drainage and irrigation or raise them in brick pools.

2. Cultivating fly maggots

You can make your own fly breeding cages, get good housefly species from maggot farms to produce sterile maggots. You can also grind 0.5 kg of soybeans into a paste, pour it into a water tank that can hold 40-50 kg of water, add 2.5 kg of fresh pig blood and 10 kg of water, mix well, and maggots will be bred after a week.

3. Culture of snails

Several bamboo cages with 4 to 6 meshes are hung around the breeding pond. A certain number of breeding snails are placed in the cages, with 2/3 of the cages immersed in water. Most of the breeding young snails crawl out of the cage mesh and are eaten by eels. You can also pick snails from canals and rice fields, peel them and cut them into pieces to feed the eels.

4. Light to attract insects

Hang two black lights above each eel pond. The upper one should be hung high enough to attract moths that are far away, and the lower one should be 20 cm from the surface of the eel pond. When it gets dark, turn on the high-altitude black light. When you find moths and insects are clustered around the high-altitude light, turn on the surface black light and turn off the high-altitude light. At this time, the high-altitude moths and insects will quickly dive down and gather around the water surface. Due to the reflection of the electric light in the water, many moths and insects will rush into the water and become part of the eel's feed source. When the number of moths and insects above the pond decreases, turn on the high-altitude black light to lure them, and repeat this process.

5. Collecting earthworms

Dig a shallow pool at the drain outlet, spread sludge on the bottom of the pool, maintain a water depth of 5 to 6 cm, apply fermented organic fertilizer regularly, and water earthworms will multiply in large numbers.

3. I want to raise fly maggots?

Breeding economic animals requires a large amount of animal protein feed, but the high feed prices have put the economic benefits of farms in crisis. In fact, the largest feed expense is animal protein feed. Is there any way to reduce the cost of purchasing animal protein feed while achieving good breeding results? Using livestock and poultry manure to breed fly maggots can not only treat animal manure in an environmentally friendly way, but also produce a large amount of protein feed, which can greatly improve the economic benefits of farms.

According to experimental analysis, the crude protein content of fly maggots is similar to or slightly higher than that of fresh fish, fish meal and silkworm pupa meal. The nutritional composition of fly maggots is also relatively comprehensive, containing a variety of amino acids required by animals, and the content of each amino acid is higher than that of fish meal. The total amount of essential amino acids is 2.3 times that of fish meal, the methionine content is 2.7 times that of fish meal, and the lysine content is 2.6 times that of fish meal.

Fly maggot farming uses rooms or fly cages to raise flies. The livestock and poultry manure is fermented by adding EM microorganisms and then fed to the maggots. Generally, a large number of maggots can be produced in a few days. The following points should be noted in the spring management of fly maggot farming:

1. Fly house insulation

The activity of flies is greatly affected by temperature. They can only crawl at 4-7℃, fly at 10-15℃, eat, mate and lay eggs at above 20℃, and are particularly active at 30-35℃.

The temperature is low in spring. The temperature difference between day and night is large. Under natural conditions, flies lay fewer eggs or even no eggs. If there is a cold wave, it will cause a large number of flies to die. To ensure that flies lay eggs normally and the production of maggots is stable, we must implement insulation measures for the fly room.

Use bubble film or plastic film to separate some small spaces in the room, make some sealed heat-insulating fly-raising rooms of 4-10 cubic meters (leave appropriate exhaust holes), and raise flies in these fly-raising rooms separately. Fly-raising rooms with poor light need to be supplemented with a bulb of more than 100W. When the temperature of the fly-raising room is still less than 20℃ under the condition of heat preservation, it is necessary to increase the temperature appropriately. Smaller fly-raising rooms can be heated by electric lights or electric stoves; slightly larger fly-raising rooms can be heated by placing honeycomb coal stoves inside. The stoves should be covered, and iron chimneys should be used to guide the gas out of the fly-raising room to prevent harmful gases from poisoning the flies.

2. Manure fermentation

The feed formula for feeding fly maggots can be selected:

1. Pig manure 60% chicken manure 40%

2. Chicken manure 60% pig manure 40%

3. Pig manure 80%, alcohol 10%, corn or wheat bran 10%

4. Cow dung 30%, pig dung or chicken dung 60%, rice bran or corn flour 10%

5. Tofu residue or cassava residue 20-50% Chicken and pig manure 50-80%

6. Chicken manure 100% or pig manure 100%

After the manure is prepared, add about 10% chopped straw, evenly pour EM active bacteria (5 kg per ton of manure) to make the manure contain 90-100% water and seal it in the fermentation tank for fermentation. On the third day, turn the manure over and add 3 kg EM per ton of manure. Generally, the manure can be used after 5-6 days. The temperature is lower in spring, and the manure fermentation time is appropriately shortened, so that the manure can ferment and generate heat during the process of feeding fly maggots, which can reduce or eliminate the need for external heat sources, and the fly maggots can grow normally.

3. Sperm Tube Flies

A 10-square-meter fly house can hold at least 20,000 flies. Every 2-3 days, a proper amount of maggots should be left to transform into pupae and flies, because the life span of flies is generally about 15 days, and the flies are aging and dying every day.

Flies should be fed regularly every morning. The ingredients are 350 grams of water, 50 grams of brown sugar and a small amount of milk powder (for a breeding area of ​​10 square meters). In order to increase the egg-laying capacity of flies, 2 grams of ovulation hormone is added (the ovulation hormone should be stopped for 3 days after feeding for 3 days). After the above ingredients are dissolved, add them to the food tray sponge. Use a small dish to hold a small amount of brown sugar cubes for flies to eat. The food tray and sponge must be cleaned every 1-2 days.

Every afternoon, put egg-collecting materials in a basin and place them in the fly house for flies to lay eggs. Egg-collecting materials can be fresh animal offal or wheat bran mixed with fresh pig blood. In the evening, cover the egg mass with a little egg-collecting material to facilitate hatching. The next day, take out the egg-collecting material and the egg mass and add them to the manure pile in the maggot breeding pool.

4. Breeding maggots

After the manure is fermented, it is piled into the maggot breeding pool, with 3-5 ridges of 20-30 cm in height. The egg collection material with fly eggs taken out of the fly house is added to the manure, and added again the next day. The hatched maggots will drill into the manure to feed.

During the breeding process, if the hatched maggots are found to be always wandering on the surface of the manure and not drilling into the manure, bran mixed with pig blood or fresh animal offal should be added to feed them. If the maggots come out of the manure and crawl around before they grow up, it means that the manure has poor air permeability or the nutrients in the manure have been consumed. The manure should be turned over or new manure should be added as soon as possible according to the situation.

Generally, after about 6 days, all the maggots in the manure have crawled out and the nutrients in the manure have been basically consumed. All the residual materials should be shoveled out and replaced with new manure for production and cultivation. The shoveled residual materials should be added with EM for sealed fermentation for 6-7 days before being used to feed earthworms.