Fishing Pond Trout and Freshwater Whitefish Rotation Technology

Rotating eel and freshwater eels in fishing ponds can form a farming business model in which fishing is mainly dominated by spring carp and autumn fishing is mainly freshwater eel. In 2007, we conducted trials of squid and freshwater ferrets in two fishing ponds totaling 8.1 acres. We achieved good returns. The total income of the two ponds was 1,63028 yuan, and the net profit was 43,241 yuan. The average net profit per mu was 5,338 yuan. The breeding situation is described below.

1. Pond conditions: Two fishing ponds, each with an area of ​​3.1 mu (No. 1 pond) and 5 mu (No. 2 pond), with a water depth of about 2.5 meters and a silt thickness of 30 cm at the bottom of the pond. The canal system is well-supported, with convenient drainage and drainage. The No. 1 pool is equipped with a 3-kilowatt aerator, the No. 2 pool is equipped with a 2-kilowatt aerator, and two ponds each have a feeding bait machine.

2. Feeding of fish fingerlings: The fish fingerling will be divided into two times. The time will be in late January and late May. In late January, on the 1st pool, 2235 kilograms of carp weighing 350 grams, 48 ​​kilograms of carp weighing 150 grams at the end, 120 kilograms of head pupae weighing 410 grams at the tail and 223 kilograms of grass carp weighing 2.2 kilograms; In the pond, 3,130 kg of carp weighing 350 g, 82 kg of carp weighing 180 g at its tail, 241 kg of head pupae weighing 400 g and 362 kg of grass carp weighing 2 kg were weighted. In late May, on the 1st pool, a total weight of 95 grams of freshwater peony was weighed 95 grams and 60 centimetres in length was 5 centimeters; on the 2nd tank was 387 kilograms of freshwater fleas weighing 5 grams and 5 centimeters in length. Fish 100 tails. The fingerlings were soaked in 5% salt solution for 5-10 minutes.

Feeding management: The entire feeding management is divided into growth and feeding management and fishing feeding and management. The fishing and feeding management time is from March to May and from September to November, and the growth, feeding and management time is from June to August. It is the management of freshwater white pelicans during the period from entering the pool to developing product specifications.

(1) feed feeding. The feed is mainly compound feed, a small amount of rapeseed cake and wheat, which is fed once a day during angling and feeding management. The time is 4-5 pm and the feeding rate is 1-5%. During the growth and feeding management period, two feedings were conducted every day, 9-10 am and 4-5 pm respectively, and the feeding rate was 2-5%. The specific feeding amount is based on the amount of fish in the pool, weather conditions, fish feeding conditions, and fishing conditions. (2) Water quality regulation. After the fish enters the pool, the water depth is controlled at 2 meters. After May, the water depth is controlled at 2.5 meters, and the transparency of the pool water is controlled at 40 cm. From June to September, change the water 1-2 times a week. At other times, add new water depending on the weather, water level, and fish conditions. The timely addition of fresh water during fishing management will help improve the fishing effect. When the temperature is high, the aerator is turned on every day and the fish is found to be in an abnormal condition. The new water is added in time and the aerator is turned on. (3) Fish disease control. Clear the pond thoroughly with quick lime. After the fish species is under the pond, the fungicides and insecticides are applied one at a time, and the fungicides and insecticides are used once a month. The water quality is adjusted once every two months using quicklime.

Fishing arrangements: Fishing time is from mid-March to early November, mainly in April-May and September-November. Fishing in the spring is dominated by squid, and in autumn, fishing is the main source of freshwater pelicans.

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