Traditional Culture Encyclopedia - Photography major - I would like to ask, how can the summer flowers of Jian carp be cultivated in 90 days?
I would like to ask, how can the summer flowers of Jian carp be cultivated in 90 days?
First, pond conditions. The pond covers an area of 4 mu and is rectangular with a water depth of 2-2.5 meters. The water source is normal and equipped with a 3 kW impeller aerator. Source of fry: Jian Li Wuzai was introduced in May 10. After the flowering period of Zhixia was cultivated, the summer flower of Jian carp was isolated on June 28th. Preparation before stocking: June 1 1 disinfect the pond with 300kg of quicklime, June 2 1 add water 1m, and apply base fertilizer 1500kg. Tang Ding: On June 28th, 5,600 carp summer flowers were released, with an average tail weight of about 0.009 kg and a total weight of 50 kg. On June 29th, 90 1 silver carp was released, with an average tail weight of about 0. 15 1 kg, a total weight of 136 kg and a silver carp ratio of 1: 4. There are 600 crucian carp, with an average tail weight of 0.00 1 kg and a total weight of 0.6 kg.
Secondly, feed is the most important. In the process of feeding, all fish balls are used. According to the different physiological needs and specifications of fish, feed 1, 2, 3 and 4 in time. There are also management aspects. Domestication: Jian carp began to be domesticated after summer flowers went into the pool. In July 1 day, the phenomenon of rushing to grab food began to form, and fixed-point feeding began. Feeding: Feed 6 times a day after starting the fixed point. When Jian carp grows above 0. 1 kg, feed it 4 times a day. The feeding rate is generally 4%- 10%, and 4992 kg is fed in the whole process. Water quality management: 20cm fresh water is injected into the pond every 20 days after the summer flowers leave the pond. After the water is gradually added to the highest water level, change the water three times in time, so that Jian carp has always maintained a strong appetite. Use the aerator after August 28th, and adopt the principle of "three on and two off". Fish have never seen the phenomenon of floating head.
Finally, the production results. 4,248 kg of adult fish were recovered from the dry pond, including 3,404 kg of Jian carp, 75 1 kg of crucian carp and 93 kg of carp. These three kinds of fish meet the commercial specifications, and the feed coefficient is 1.45.
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