As a rare and valuable breeding species, the golden pheasant is gradually attracting people's attention. In 2006, the author reconstructed the original shrimp rearing nursery and used the underground well water indoor factory to raise the golden oysters. After nearly 8 months, a total of 16 tons of adult fish were produced in a total of 480 square meters of culture ponds. The average size reached 357.4g/body weight, and the survival rate of culture was 90%, and good economic benefits were obtained. Safety Shoes;WORK SHOES;INDUNSTRAIL SHOES;Construction Shoe;Steel Toe SHOES Ningbo Staneex Imp. & Exp. Co., Ltd. , https://www.staneex.com
First, the breeding pond
The aquaculture pond is a rectangular cement pool, which is transformed from the original shrimp nursery pond. The pool is 15m long, 4m wide, and the water depth is 1m. The area of ​​each breeding pond is 60m2. The pond is well-ventilated and drained, and it is equipped with a charge. Oxygen facilities. In the initial stage of cultivation, a total of 4 breeding ponds were used. In the latter stage of cultivation, 8 ponds in Sichuan were raised due to gradual thinning and aquaculture, and the total aquaculture area reached 480 square meters. Before the emergence of the seedlings, bleaching powder was used to completely sterilize the culture ponds and repeatedly flushed with underground well water to kill pathogens in the pond.
Second, water and water quality
The source of aquaculture water is underground well water. The water quality is clear, transparent, colorless, and odorless, and the dissolved oxygen content is sufficient (above 10mg/L), the pH is 7.8, the salinity is 5‰ to 6‰, and the water temperature is kept at 15°C all year round. ~16°C. During the breeding period, the method of circulating aquaculture water every day is adopted. First, water is drained by 1/4 so as to remove the fish droppings and residual baits in the culture pond, and then 1/4 of the water is added to maintain the amount of aquaculture water.
Third, fish species stocking
Golden mullet species were purchased from a nearby nursery. In October 2006, the average size of the species was 60,000 gilts of 60 g per tail. The specifications of the stocking species are tidy, agile, robust, disease-free, and bright, with a bright golden color.
IV. Breeding management
1. Feed Feeding In the entire breeding process, there are two formulas for feed: the early period of culture (from Dingtang to the beginning of February in the following year), the feed formula is 60% for animal feed, and 40% for plant feed, ie fish meal 60%, bean cake 15%, bran 15%, coarse powder 5%, corn 5%; in the late culture period (from mid-February to the out of the pool), feed formulation accounts for 50% of animal feed and 50% of vegetable feed. That is, fishmeal 50%, soybean cake 25%, bran 15%, corn 5%, coarse powder 5%. Long-term addition of 100 g of multidimensional pigment, 166 g of choline chloride, 200 g of inorganic salt per 100 kg of feed, and vitamin E were added in the feed at 0.1% of the total weight of the fish. When the feed was fed, the feed amount was increased or decreased according to the fish's feeding condition. Eighty percent of the fish was fed to the fish and fed twice a day. The method of hand-sprinkling was used for timing, spotting, qualitative and quantitative feeding. Under normal circumstances, the daily feeding amount is 2% to 3% of the total weight of the fish body, but it should be based on the weather, water temperature and fish ingestion, etc. to avoid overfeeding and polluting the water quality.
2. Prevention and control of fish diseases is mainly prevention and prevention and control, and more methods of pool water disinfection and drug feeding are combined. When the pool water is disinfected, commonly used drugs are copper sulfate and ferrous sulfate (mixed with 5:2), so that the pool water concentration of 0.7ppm, static water bath for 30 minutes, observe the fish after the application of the reaction during disinfection, if found Abnormal phenomena immediately increase the amount of water in the pool and dilute the drug concentration to prevent the occurrence of dead fish accidents. When baits are baited, oxytetracycline, such as oxytetracycline, is added to the feed, and the amount of vitamin E, vitamin C, and choline chloride are increased, and 100 g of oxytetracycline can be added to 100 kg of feed.
3. Daily management Regular sparse seedlings to ensure a reasonable stocking density and reduce the occurrence of hypoxia and floating heads.
4. Capture, catch up, stay small, and get a balanced listing. Considering factors such as market demand, turnover of production materials, and growth of group production, individuals with specifications up to 500g/s are selected for listing in a timely manner, which not only satisfies the market demand, but also alleviates the shortage of production funds, reduces the load capacity of fish ponds, and improves Fish pond overall production capacity.
V. Analysis of breeding results and economic benefits
Farming began in October 2006 and ended in June 2007. After nearly 8 months of careful breeding, 16 tons of adult fish were produced in 480 square meters of culture ponds. The average size of adult fish reached 357.4 g/body weight, and the survival rate of culture was 90%. A total of 31t of compound feed was fed, and the feed coefficient was 1.95. A total of 500,000 yuan was paid for production costs, 1.28 million yuan for adult fish, 780,000 yuan for net profit, and an input-output ratio of 1:2.56.
Sixth, summary
1. The golden carp has strong adaptability, and the suitable growth water temperature range is 12°C~20°C. It can also be less than 15% in pure fresh water or salinity. The saltwater aquaculture. From the data collected from the culture, it can be seen that the golden pheasant grows well, has a strong physique, and has fewer diseases.
2. Jinlu temperament is mild, individuals do not eat each other, suitable for high-density industrial farming.
3. The author suggests that the use of existing natural conditions, appropriate adjustment of the ratio of the breeding of golden pheasant and rainbow trout, can increase the economic benefits of unit culture rainbow trout, and will also play a positive role in promoting the healthy development of the breeding industry in China.