CATDOLL : CATDOLL: Herring farming technology and feeding time

Pond conditions

It is better to choose a place with sufficient water source, convenient drainage and irrigation, no pollution source, ventilation and sunshine, and convenient transportation. The water quality is good, and the transparency is 30-40cm.

Fishpond requirements:

Fish pond type Area m2 Water depth m Bottom silt thickness Pond cleaning

Fish pond 667-2500 1-1.5 Flat soil <20cm Clean the pond 15 days ago

1-year-old pool 2000-4000 1.5-2 <30cm

2-year-old pool 3500-5000 1.8-2.2 <40cm

Adult fish pond 5000-10000 2-2.5 <40cm

In fish breeding and adult fish rearing ponds, feeding areas (or feeding tables) should be designated. The feeding areas are required to be flat, free of silt, and kept clean and hygienic all year round.

2. Fry cultivation

Apply 6000-7000kg/hectare of green manure or 3000-4000kg/hectare of manure 5-7 days before stocking. The organic fertilizer should be fermented, decomposed, and disinfected with 1-2% lime. Deepen the water to 0.5 meters 2-3 days after fertilization, and deepen to 0.6-0.7 meters after 5 days. Use a dense mesh to filter the water when it enters.

3. Fish fry stocking

4. Feeding and Management

Soy milk is applied on the 1st to 10th day, 30kg/ha for the first 5 days, 40kg/ha for the last 5 days, and the amount is increased after 10 days, twice a day, evenly sprinkled throughout the pond. Add 15-20cm of water every 5-7 days, and add to a water depth of 1.3-1.5 meters when the summer flowers are removed from the pond. Apply topdressing in appropriate amounts according to the water quality of the cultivation pond. After about 25 days of cultivation, the fry will become summer flower fingerlings and should be sparsely divided into ponds, and 2-3 intensive exercises should be performed before leaving the pond.

5. One-year-old fingerling cultivation

The stocking time is before the summer solstice, with 80,000 to 100,000 black carp per hectare, 18,000 to 20,000 bighead carp per hectare, and 5,000 crucian carp per hectare.

First use a small amount of fine feed to lure the black carp to the feeding table, then feed bean cake slurry twice a day, 2-3kg/time per 10,000 fish. After 5cm, mix it with vegetable cakes, after 7cm, switch to soaked vegetable cakes or bean cakes, after 10cm, mix it with crushed snails, start with 30kg/10,000 fish, and then gradually increase the amount.

Implement "four fixed" when feeding. Fixed point: feeding table or feeding field; fixed time: twice a day, 8-9 am, 2-3 pm; fixed quality: give high-quality fresh bait according to different growth stages; fixed quantity: each feeding should be finished in 1.5 hours, and the monthly feeding amount accounts for the proportion of the total feeding amount: 4% in June, 15% in July, 23% in August, 25% in September, 15% in October, 10% in November, 4% in December, and 4% in January-March. The feeding field should be cleaned and disinfected frequently to keep it hygienic. Water should be added frequently to control the fertilizer degree and dissolved oxygen. Patrol the pond twice a day in the morning and evening, observe carefully, arrange production according to the situation, and treat diseases in time. Keep production records. When the temperature drops to 10-5℃, the pond should be removed, the pond should be merged, and restocked. The winter stocking density is 25g/m3, change the water regularly, feed in small amounts, keep quiet, and keep the water depth at 1.8-2 meters.