Squid is the main farmed fish in the northern region. In recent years, the price of carp has continued to slump, and the breeding efficiency has been poor, which has seriously affected the enthusiasm of fishermen. So, is there any profitable solution for carp pond culture? After many years of investigation and analysis, the author believes that carp pond culture is not unprofitable, and the following five methods can be used to increase efficiency.
First, choose the excellent carp carp carp to choose fast growth, strong disease resistance, good quality,
The market is popular with the German mirroring breeding system, Jianou, Songpu, Huanghe, and Koi. The German mirror carp breeding line was first promoted in Heilongjiang province and gradually spread in northern areas. The German mirror carp breeding line was also listed as the nation's main pusher for fishery technology in the Ministry of Agriculture from 2008 to 2010. Jianou has the advantages of rapid growth rate, suitable for breeding in various farming methods, strong disease resistance, easy catching, high meat content, good meat quality, and self-breeding and self-cultivation without hybrid seed production, etc. Large-scale promotion. Matsuura Acer is a hybrid new variety that is cultivated in Heilongjiang wild rice cultivars, red purslane, German mirror amaranth and scattered phyloge australis. It is a new hybrid variety bred through a variety of breeding methods. It has a stable heredity, fast growth, and strong cold resistance. Traits. Matsuura wolfberry grows faster than common squid by more than 30%, and its survival rate is over 95%.
It has become an important target for trout farming in the north. Koi is a popular ornamental fish species and its development prospects are promising.
Second, a year farming "two fish" fish traditional trout commercial fish pond farming methods commonly adopted is the spring fall catch, due to a large number of concentrated commercial fish market, resulting in poor market sales, selling fish is difficult, low fish prices The breeding efficiency is not high. In other seasons, it is the off-season when commodity fish is listed and the fish price is relatively high. In response to the problems existing in the traditional commercial fish culture method for squid, the squid has been promoting the “two scorpion†technology for one year in recent years. The squid will be raised first and then one squid species will be raised. Compared with traditional squid commercial fish culture methods, the main advantages of squid's annual “two pods†technology are: First, it is through the stocking of large-scale fish species.
(Fish size 200-300g), realizing the market for fish products in the morning. Commercial fish (specifications 750 to 1000g) are usually listed in the pool in summer, and this is a relatively low season for commercial fish. The second is the high efficiency of aquaculture, and the general acre benefits up to about 2,000 yuan. Third, the aquaculture production has been greatly improved. The output is about 2 times that of traditional farming methods.
3. Raise and raise the name of special and superior aquatic products The main pond for raising squid can increase the benefits through the cultivation of famous and special aquatic products. At present, the aquatic products that can be used as a trout pond are: river crab, Aphrodisiac, squid, Pengze scorpion, Huaiyin scrofa, stingray, L. striata, and Dingyu. The following issues should be noted in the cultivation of special aquatic products:
One must strictly control the stocking density, otherwise it will not reach the listed specifications and affect the breeding efficiency. The second is that for the special aquatic product species with similar food habits, only one species is generally selected. The third is the cultivation of aquatic products can not harm the eel or compete for food with it.
Fourth, the commodity fish overwinters for the spring fishing squid fish, when the fish price is low,
It is possible to sell commercial fish over the winter and sell it when the price is high in the second year of spring to realize off-season sales and increase profits. Commercial fish is generally better before entering the pool before sealing ice. The pool density is calculated according to the effective water body under the ice, and the commercial fish is put into 0.25-million cubic meters of water.
0.5kg. Commercial fish adopts the technology of over-winter bioaerobic safe overwintering. It mainly adopts the following measures: First, it kills large-scale zooplankton. In the first 15 to 20 days before the closure of the ice, Quanchip is splashed with trichlorfon at a concentration of 0.5 to 1 mg/L. The second is to sweep the snow and dust on the ice to keep the ice transparent. The third is measuring oxygen,
Note the changes in dissolved oxygen in the water under the ice. Dissolved oxygen at 3mg/L
In the following, emergency oxygenation measures should be taken. The third is the patrol pool. Observe whether there is water leakage in the overwintering pool, whether the dam breaks, or whether there is excessive amount of large zooplankton by using ice eyes to observe whether there is floating head under the ice.
V. Fish pond fishing Carp fishing is one of the main species of pond fishing in the northern region. Sell ​​fish through fish pond fishing, the price of carp is generally more than 50% higher than the market price, which is one of the effective ways to increase the efficiency of carp aquaculture. The following issues should be paid attention to the development of carp fishing: First, it is necessary to adjust measures to local conditions. Pond site selection is one of the key factors affecting the economic benefits of fishing. The location of the fishing pool requires convenient transportation, close to the highway, and it is best to be close to tourist attractions. In addition, it is best to provide entertainment and dining facilities to attract more guests. The second is to do a good job fishing pool management. The fishing pool should maintain a density of more than 1000kg, and often make up the fish to ensure the fishing effect.
Before the fish enters the pond, disinfect the fish. When the fishing pond is not fishing, feed should be fed in an appropriate amount to maintain the fish's constitution.
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