They live in mud caves and cracks near the water, come out in summer, and hide in caves in 1 1 month and1February.
Monopterus albus is an omnivorous fish whose main food is animal food.
Under natural conditions, they mainly feed on small fish, shrimp, mussels, snails, insects and large zooplankton such as cladocera, copepods and rotifers. And swallow frogs and tadpoles, and sometimes eat duckweed, watermelon, filamentous algae, etc. The farmed Monopterus albus is mainly fed with earthworms, fly maggots, fish and shrimp, animal offal, offal from slaughter, compound feed and fresh feed such as bran, rice, rice bran, bean cake, bean curd residue and melon peel, and it is not allowed to feed with spoiled feed. It is best to pulverize animal feed and plant feed, and then mix and process them into granular feed for feeding. The particle size depends on the size of Monopterus albus, and it is generally appropriate to swallow it in one gulp. The feeding mode of Monopterus albus is sipping, and the food is swallowed directly without chewing. When encountering large food, Monopterus albus often bites the food by rotating its body. In the peak feeding period of Monopterus albus, if the feed is insufficient, Monopterus albus will also eat Monopterus albus smaller than itself. Therefore, when stocking, eel species with the same size and specifications should be selected to avoid mixed culture.
Monopterus albus is strict in the choice of bait, and it is difficult to change its original feeding habits after feeding a bait for a long time. Therefore, it is necessary to do a good job in bait culture in the early stage of feeding, that is, feed compound feed with wide sources, low price, long supply time and high meat weight gain rate.
1 feeding habits
Monopterus albus is a fierce carnivorous fish and likes to eat fresh bait. Under natural conditions, it mainly preys on aquatic and terrestrial insects such as earthworms, tadpoles, small fish, shrimps, young frogs, grasshoppers and fly maggots, and also eats large zooplankton such as cladocera and copepods.
2. Feeding methods
Due to the deterioration of vision, Monopterus albus mostly moves at night, mainly relying on the sense of smell for food. When the food is close to the mouth, the mouth opens and sucks the food into the mouth, so the eel always makes a "firm" sound when eating. Monopterus albus mainly eats food, and the food is swallowed without chewing. When it meets a large animal, it is bitten first, bites off the food one by one by rotating its body, and then swallows it. Monopterus albus eats quickly, and then quickly shrinks back to its original hole with its tail after eating. In the case of insufficient feed, Monopterus albus has the habit of cannibalism. Monopterus albus is very hungry, and it won't die if it doesn't eat for a long time. In summer, when the activity is intense, although you eat a lot, you are still hungry, but your weight will be obviously reduced. Once Monopterus albus is used to certain bait, it is difficult to change it.
3 Source of bait
Monopterus albus likes to eat mainly earthworms, fly maggots and Tenebrio molitor. We can use scattered small wasteland, yard corners and abandoned ditches and ponds to apply livestock manure, and use the leftovers from slaughterhouses, supplemented by bran and dregs for breeding. At the same time, the terrestrial animal feed mainly consisting of eels and earthworms is cultivated, so that the number of earthworms, fly maggots and Tenebrio molitor accounts for more than 60% of the total feed. In addition, fish, shrimp, snails, clams, clams and tadpoles can be used as feed for Monopterus albus. Can be used for culturing crucian carp, loach, toad, etc. The free time in the early spring eel pond is used as live bait for eels; In addition, according to local resources, live feed can be collected, and earthworm or earthworm enzyme can be added as attractant to feed eels after processing; You can also catch large zooplankton, such as water fleas and rotifers, and throw them directly into the eel pond. In addition, planting some plants such as melons and beans on the eel culture pond can not only shade the sun and cool down, but also breed insects. Black lights are hung on the eel culture pond to lure the insect pond for eels to prey. In addition to the above feed sources, collect the leftovers of livestock and poultry, such as blood, viscera, etc., wash them, chop or mince them and cook them, and feed them to Monopterus albus; Buy silkworm chrysalis from silk reeling factory, dry it and throw it into eel pond to feed eel; In addition, eel compound feed can also be fed to eels. But attractants must be added to these feeds, and eels can be fed by gradually introducing food.
4 Bait domestication
Fresh mussel meat was frozen and processed into minced meat with a 6 mm die grinder. Mix minced meat evenly with clear water and sprinkle it in the eel pond every afternoon from 5: 00 to 7: 00, and the feeding amount should be controlled within 65,438 0% of the total weight of eel fry. This food intake is much lower than the satiety of Monopterus albus, so Monopterus albus is always hungry, which is convenient for establishing the centralized feeding conditioned reflex of Monopterus albus population.
Three days later, it was observed that the eel was feeding vigorously, that is, feeding at fixed points. Generally, 4-6 points were set every 20 m2 for two days, and the feeding amount was still 1% of the total weight of eel seedlings. At this time, eels can basically be eaten in 3 minutes. On the sixth day, artificial compound bait was fed instead. When feeding, people are directly dispersed in the designated feeding area, and the feeding amount is increased to 2% of the total weight of eel fry. Feed 1 time from 5: 00 pm to 7: 00 pm every day, and pay special attention to finish feeding within 15 minutes to improve feed utilization rate.
5. Development of artificial compound bait for Citellus dauricus
Feed produced by general feed mills cannot be directly fed, and must be prepared first. 65% of Monopterus albus special feed is added with 35% of fresh mussel meat (processed by 3-4 mm die hole meat grinder), which is fully stirred into dough by hand or blender, then pressed into soft strip bait with a diameter of about 3-4 mm and a length of 3-4 cm by 3-4 mm die hole meat grinder, and can be fed after a little air drying. The bait thus prepared has an extremely ideal feeding effect. In large-scale farming with soil, the bait coefficient is about 2, and in large-scale farming without soil and running water, the bait coefficient is only 2-5.