I. Choosing varieties suitable for raising oysters outdoors Currently, the most important varieties for cultivating glutinous rice in Zhejiang include Xiaoshan's Japanese Chinese sturgeon, Deqing's Qingxi flower hoe, Jiashan's Liutaji, and Shaoxing's Jiangnan flower worm. The species is not only determined by the aquatic experts as a provincial or national fine variety, but has also been accepted by the majority of consumers, and has established a corresponding provincial or national level of the Echihara cultivar in the local area. There are strict breeding requirements. The quality can be guaranteed, and each breeding owner can choose according to actual financial strength and breeding experience. However, it should be noted that Taiwan's cockroach is the main species of greenhouse cultivation, and its quality has been widely recognized by consumers. Therefore, Taiwan cockroaches should not be cultured as much as possible to avoid being misunderstood by some consumers and affecting market prices.
Second, the management of greenhouse aquaculture stocking density of 20/m2 to 50/m2. During feeding, it is necessary to pay attention to the control of medication and avoid the formation of drug residues. Before hatching, juveniles must have a half-month adaptation period. On the one hand, the feeds fed should be transformed from juvenile clams and young clams to clams; on the Other hand, the water temperature should be gradually reduced to be consistent with that of outdoor ponds. . The specifications for the move to the outdoors require a weight of about 0.25kg, and after strict screening, the sick and injured species can not be placed in the outer pool, and the species should be disinfected before being put into the outer pool.
Third, outdoor farming management
1. Control stocking densities and male-female ratios to cubs weighing more than 0.25 kg and stocking density to within 400 animals/mu. Before sexual maturity, the young male can be used to separate the male and female larvae by using the timing of backing on the shore. This is because if the proportion of males and females is too high after pool ripening, the female quail can easily cause harm after mating and induce disease. (Abrasion on the back of the abdomen, limbs and acne on the body surface) caused a large number of deaths, leading to a significant decrease in the survival rate in the later period of culture.
2. With polyculture varieties In order to improve the overall efficiency of breeding, according to the principle of polyculture of fish gizzards, it is possible to boldly breed multiple species of fish. In addition to earthworms, we can also stock grass, alfalfa, green, alfalfa and other varieties. The main feed is animal feed and the main feed is fish. In addition, high-value aquatic products such as alfalfa, flower bone fish, stingray, and green prawns can also be stocked completely to improve comprehensive benefits.
3. Optimize the aquaculture environment The area of ​​outdoor turtle ponds is preferably 5 mu to 10 mu, and the water depth is 1.5m to 2.0m. In general, the anti-escape facilities of the ponds have a fixed masonry structure. The author thinks that the use of grid bars can be moved flexibly, and they can be spliced ​​at random. To set up more back basal table, it is best to set up a number of drying back in the middle of the pond. The main purpose of the suntan is to remove toxins from the body, increase metabolism, kill parasites on the body surface, and enhance the toughness of the skirt. It is an essential physiological reaction in the growth process of alfalfa, and it is also very important for alfalfa growth. important. When ponds are sited, care should be taken to keep the environment quiet, leeward and sunny, and to avoid outside interference. There must be a certain slope in the back sun and the surface should be clean and weed free.
4. Reasonably feed the feed After the greenhouse maggots are moved to the outdoor rearing ponds, they should be fed animal fresh live feeds, supplemented by special commodity feeds, so as to ensure that the quality of the quail can be kept low, less oil, and more Blood, so that the appearance of luster translucent bright, strong and generous skirt, white oil yellow. Feeding animal foods must be fresh. The feeds in the early stocking period should be sized and puffed. After the larvae grow to 0.25 kg in weight, they can be fed and fed.
5. Grasp the final results of the market specification farming is to reflect the best economic efficiency. Many years of aquaculture practice shows that the growth rate of earthworms began to slow after weighing 0.75kg, especially females, and males reached a body weight of 1.0. The growth rate after kg has also begun to decline. Therefore, the market size of the outdoor pool should be controlled at about 0.7 kg in body weight and should not exceed 1.0 kg. The author believes that: In the fishpond polyculture pool, both commercial fish and merchandise can be flexibly caught in accordance with specifications and market prices, and along with the catch, always maintain a suitable stocking density and breeding specifications. This mode of polyculture in fishponds not only has good survival rate, high yield and stability, and better quality of clams, but also does not affect fish production, so that the overall benefits of aquaculture water can be fully and fully utilized.
Fourth, the development of imitating the development of eco-cultivation imitating eco-culture is a product of production practice and consumer market, is a feasible path for the vast number of producers to try to make the greenhouse aquaculture out of the predicament, this farming method utilizes The existing hatchery facilities and production conditions in the greenhouses and aquaculture farms have taken the road combined with eco-fish farming and fish-raft multiculture, and greenhouse cultivation has been used as a pre-production stage for eco-fish farming, which has not only solved the problems of eco-cultivation and breeding. The cultivation of the problem has also solved the problem of concentrated sales of greenhouses and low prices. It has the following advantages.
1. It is possible to make full use of industrialized breeding facilities and technologies to increase the stocking capacity of juveniles, from 20/m2 to 40/m2.
2. It is possible to achieve a balanced listing so as to reduce the market price risk brought about by the centralized listing of greenhouse commodities.
3. It can increase the economic benefits and ecological benefits of conventional aquaculture waters. The oysters, oysters, oysters, clams, shrimps and other varieties are mixed with quail, and the fish larvae are symbiotic, promote each other, and achieve a good harvest of fish and oysters.
4. The quality and market price of earthworms can be improved compared to simple industrial rearing, and the breeding cycle can be reduced by 1 to 2 years compared to the simple ecological rearing. Due to the open-air breeding of ponds in the later stage of the commodity, the culture density is greatly reduced, pollution and disease are less, and less drugs are used. This not only reduces the breeding cost, shortens the breeding cycle, but also improves the quality of alfalfa, and the market price is moderate. Larger groups result in significant economic benefits.
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Weighing range
5-10kg
Weighing accuracy
±0.1%-0.5%
Weighing rate
120-400 bags/h
Power/current
5kW/10A
Air supply pressure
0.36MPa
Metering mode
Suspension sensor
Frequency/voltage
50Hz/60Hz/220V/380V
Power supply mode
3-phase 5-wire system
External dimensions (L*W*H)
4000*2000*3000 (mm)
Unit weight
800 kg
Powder Bagging Scale System
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