Can Crispy Grass Carp be farmed in Chongqing area?

Can grass carp (grass carp) be cultured in Chongqing?

The grass carp (grass carp) is very adaptable to the water temperature, it will go to the deep water to hide in the winter of minus tens of degrees Celsius, as long as the pond is dug deeper (more than 5 meters) can be cultured.

Crisp carp, native to the Yangtze River Reservoir in Zhongshan City, Guangdong Province, is the use of the reservoir's mineral water, feed concentrate feed, the use of live water intensive aquaculture method of breeding into a famous aquatic products. It is named for its firm, refreshing and crispy meat.

A, breeding conditions

1, A B pond around the cement sand batch masonry pond base, area ****1hm2, pond depth of 2.5m, can be stored in the depth of 17m, the bottom of the pond for the white good silt substrate. Pond sunny, abundant water, fresh water quality, convenient drainage and irrigation, and equipped with two 1.7kW oxygenator. The water inlet is made of fixed bamboo blocking net, and the drainage outlet is made of steel bars welded into a fish blocking fence to reinforce the anti-escape.

2, Pond B is used to cultivate and supply large-size fish species stocked in Pond A. The feed is fed with full-value granular submerged Guangdong Zhan Da grass carp material. The weight of the fish species reaches 2500~3000g/tail, with uniform specification, lively and robust, good quality and no disease.

3, the whole test process to feed the northeastern production of broad beans as the main, usually add a small amount of green fodder with.

Two, feeding methods

1, fish stocking before the preparatory work

①Built to keep the pond fish house and feed warehouse, and reinforced to prevent leakage of water, do not damage the feed.

②Build a good feeding canopy, because feeding fish for a long time, need to make a good preparation for rain and sun facilities.

3 pond fish, pond ridge around the planting of elephant grass, saving money, supplementing green feed, improve fish quality, reduce drugs, to achieve the purpose of green pollution-free food.

④Pond disinfection. Fish ponds dry ponds in addition to miscellaneous, after exposure to the sun for 30d, water storage 0.5m, 667m2 with 150kg lime thoroughly clean ponds.

⑤ Water quality is non-polluted, colorless, odorless and tasteless reservoir water and mountain water. Oxygen content of more than 4mg/l is good, pH value of 7.0 ~ 7.5.

2, fish stocking

①In the baiting process, follow the principle of "four fixed" feeding, feeding twice a day, baiting time is generally at 10:00 and 18:00. daily feeding is generally based on the estimated weight of the fish 2% ~ 3%, in the feeding of the fish. 3% of the fish body weight as the basis, in the feeding to observe the feeding after 1h residual bait situation flexibility to decide, both to ensure that the fish can eat enough and not to overeat and feed waste. In the high temperature season, look at the pond water color, water change, so that the water quality is fresh, fish grab food.

② Feeding beans must be soaked sprouting, sprouting beans catalyzed after rinsing clean without odor before feeding, sprouting time and feeding time convergence, in order to keep eating as well. Feeding sprouted fava beans, fish are willing to eat, easy to digest and absorb, high conversion rate, fish grow fast, meat flavor, muscle brittle.

4, fish disease control

By regulating the water environment of the pond, so that the environmental factors to maintain ecological balance, to create a good living environment for fish, suitable for fish growth and development, so that fish do not develop or reduce the incidence of disease. And do a good job of prevention and control, generally with 0.8mg / l of copper sulfate, ferrous sulfate (5:2) combination of the whole pond sprinkled, or trichloroisocyanuric acid 0.4mg / l or chlorine dioxide 0.2mg / l, once a month, three kinds of drugs are used alternately.

5, daily management

①Pond patrol to check whether the water inlet and outlet is perfect, there are no loopholes, to observe whether the fish activity is normal, as well as the growth and water quality changes; strict guards, to prevent theft and burglary, to reduce the impact of human factors on the project test.

②From time to time sampling test fish weight, so as to estimate the total weight of the fish to facilitate the master baiting.