I. Pond conditions
The area of ​​the fish pond is generally not to be too large, with the best of 5 to 10 acres, water depth of 2 meters or so, convenient water supply, and 0.3 to 0.5 kilowatts of aerator per acre.
Second, fish species stocking
1. Stocking time: After the autumn of the first year or the spring of the current year, the water temperature is 8 to 10C.
2. Stocking species and quantity: 800 to 1,300 tails of mullet species and 300 to 600 tail mullet species.
3. Pre-planting pond clearing and fertilization: Lime dry clear pond, mu amount of 100 to 150 kg, Mushi basal fertilizer (fermented chicken, cow dung as well) 150 to 400 kg, after the entire breeding process no longer fertilize.
Third, feed
1. Raw materials and processing: In the feed process, all of the squid use artificial compound feed, mainly local rural products such as cakes and bran, bran, etc., and appropriate amount of animal protein feed such as fish meal. Crude protein content is required to be about 30 to 35%, requiring basic amino acid balance, and the feed coefficient is generally about 1.7 to 2. The raw materials are crushed and then mixed by ratioing to be processed into 3 mm particle size granules for later use.
2. A salmon feed formula is presented for reference: fishmeal 5%, bean cake 10%, cotton kernel cake 20%, bran 35%, peanut cake 10%, cornmeal 5%, yeast powder 2%, minerals and multivitamins 2. 5%, salt 0.5%. This formula has a crude protein content of 30%.
Fourth, feeding and management
1. Pay attention to the patrol pond: Take measures to detect abnormal phenomena and prevent flooding in high temperature and rainy weather. Appropriate amount of aerator, if necessary, infuse new water.
2, feeding technology: set a vote every 5 to 10 acres of bait points: fish ponds after the combination of audio, fish training focused on food, feeding adherence to four: timing, fixed-point, qualitative, quantitative. A small number of times, using artificial hand sprinkler or automatic feeding machine feeding, each feeding about 30 minutes.
3, prevention of fish diseases: to prevent the main, high temperature season insisted every half a month Mu lime 10 to 15 kilograms of water Quanchiposa, each month with crystal chloric acid trichlorfon 0.25ppm or bleach 1ppm Quanchiposa once.
4. Test fish growth once a month and make a diary of the pond.
Carp is very popular in northern China. The use of ponds fed with pellet feed to raise squid can achieve high yields and high yields. Spring squid species of 50 grams or more are reared. After 120 to 150 days of rearing, they can reach 0.5 kilograms or more after autumn. 1000 kilograms, a net profit of 1000 to 2000 yuan, and the method is simple and easy to grasp, now several key measures are introduced as follows: