Processing food for raising flower eel
(Baonghean.vn) - Flower eel (Anguilla marmorata) is a high-value aquaculture product. Currently, it is mainly raised with trash fish as food, with an inactive source and a high risk of environmental pollution and disease. Therefore, processed mixed food is the best way to effectively raise this species.
Ingredients:
Mixed feed for flower eel is made from ingredients including: 47% fish meal, 22% soybean meal, 14% wheat flour, 8% rice bran powder, 5% fish oil and some other ingredients such as 2% mineral premix, 2% vitamin premix...
Processing method:
Mixed feed is processed according to the following steps: Raw materials used to make fish feed must be of good quality, not spoiled, especially not moldy. Use a scale to weigh the raw materials, when weighing must have high accuracy to ensure the protein content in the feed after processing.
Mix the ingredients: fish meal, soybean meal, wheat flour, rice bran powder are mixed well. After the ingredients are cooked, let them cool, then add fish oil, mineral premix, vitamin premix, mix well and put into the food extruder to create pellets.
Finally, cold storage: the mixed moist food after being processed can be stored in a cooler or refrigerator for about 5-7 days for the fish to eat gradually.
Feeding and food management:
Feed fish daily with an amount of 5-10% of the fish weight in the pond. Feed fish according to 4 criteria: quality, quantity, location and time.
Feed fish twice a day, morning (7-8am), afternoon (4-7pm).
Food is put into a sieve made of a square iron frame, fixed at the 4 corners of the pond, 1m from the shore.
Note: When the temperature is lower than 250C or higher than 340C, the amount of food must be reduced. Adjust the amount of food so that the fish can eat it all within 1 hour. Flower eels have the characteristic of feeding at night, so the fish's food ration in the early evening is equal to 70% of the total amount of food the fish eats during the day.
Raising commercial flower eels with mixed feed combined with trash fish will help fish increase survival rate (96%) and low feed conversion ratio (3.05).
Tran Trung Thanh
