Aquaculture Lists
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Six key points to improve the hatching rate of turtle eggs
As we all know, turtles have strong vitality, few epidemic diseases, and are easy to raise and manage, but this is for adult turtles. In the whole process of raising turtles, it is not possible to be careless in some links and details. The hatching of turtle eggs is a highly technical link, and if not, it will fail. Now six methods to improve the hatching rate of turtle eggs are introduced as follows. 1. Scientific cultivation of parent turtles and selection of improved varieties is the first condition to improve the hatching rate of turtle eggs. Parent turtles should be enlarged, strong, without disability and suitable for age. Female turtles are required to be over 6 years old.
2019-01-15 -
Processing technology of frozen raw shrimp
Production method 1. Raw material selection: the requirement for raw shrimp is that the quality is fresh, and the shrimp body has no deterioration and no peculiar smell. two。 Thawing: when using frozen shrimp as raw material to process shrimp, the first step is to defrost. Put the frozen shrimp in the thawed bamboo basket and rinse with water. The amount of water should be large to speed up the thawing speed. When the shrimp body is separated from the frozen pieces, it will stop thawing. The quantity of thawing should be determined according to the ability of meat peeling, neither disjoint nor overstocking to prevent deterioration. 3. Meat peeling: hold the shrimp body with the left hand, tail belly up, gently pick the shrimp head with the right hand, and peel off the shrimp carefully
2019-01-15 -
SEXUAL IDENTIFICATION AND REPRODUCTION OF ZIBRAFIO
It is not difficult to distinguish between male and female zebra fish: male zebra fish slender body, fin large, yellow body color, anal fin was brown, striated significantly; female fish body is larger, lighter body color, blue, anal fin was pale yellow, pregnant fish belly expansion is obvious. Zebrafish are oviparous fish, 4 months into sexual maturity, generally 5 months old fish reproduction is better. Zebrafish reproduce relatively easily. The reproduction water requires pH 6.5 -7.5, hardness 6-8, and water temperature 25-26 degrees Celsius. Zebrafish are most fond of
2019-01-15 -
A Simple Method for Preparing Several Green Fish Medicines
In the prevention and treatment of fish diseases, if we can use local green plants or traditional Chinese medicine to prepare fish medicine, we can not only prevent and treat common diseases such as red skin disease, enteritis, rotten gill disease, but also save costs. The simple preparation method of several kinds of green fish medicine is introduced as follows:1. Sanhuang powder: rhubarb, phellodendron bark and scutellaria baicalensis are prepared according to the ratio of 5:3:2. When in use, 1 kg of "three yellow powder" and 0.4 kg of salt are added to every 10 kg of fish feed, and a proper amount of water is added to prepare granular bait for feeding. Once a day, continuous feeding for 5 days, in the early stages of treatment
2019-01-15 -
Key techniques for breeding fish species in autumn
Autumn water temperature is appropriate, is a good season for rapid growth of fish species, do a good job in autumn fish species cultivation is very critical, autumn fish species cultivation technology points are as follows: 1, clear pond after 2-3 months of fish species cultivation pond, water quality aging, natural bait reduced, harmful substances and pathogens increased. Therefore, after autumn, fish species should be transferred to ponds disinfected by pond cleaning for cultivation. Under the condition of relatively insufficient water and fish ponds. All the fingerlings can be transferred out for temporary cultivation, and 75-100 parts of quicklime are used for each mu of the original fingerling pond.
2019-01-15 -
Key points of breeding parent fish in spring
After the beginning of spring, the water temperature gradually increased, especially in the prenatal stage from March to April, the fish activity strengthened, developed rapidly, and the food intake also increased. This stage is an important period of gonadal development of parent fish. Practice has proved that the cultivation of parent fish in spring is the key to the success or failure of artificial reproduction of domestic fish. therefore, we must grasp the following points. First, bait grass parent fish are mainly fed with grass and concentrate. According to the source of grass, the grass should be fed on a fixed table in the morning and concentrate in the afternoon, when there is a lack of green fodder in early spring.
2019-01-15 -
Prevention and treatment of fulminant hemorrhagic disease of silver carp in Shantang Reservoir
From August to September in 2005, a large area of fulminant hemorrhagic disease of silver carp occurred continuously in Baiyuan Reservoir, Shachong Reservoir and other small reservoirs in Pingle County, Guangxi, with an area of about 590mu. The fish died within two days with 5386kg and 600~1000g/, and the economic loss reached more than 20, 000 yuan. The disease is ferocious, the mortality rate is high, and the disease is easy to repeat and difficult to control, so it should be paid great attention to by the majority of fishery farmers. 1 epidemic situation and characteristics of the disease are the epidemic seasons in March to May in spring and August to October in autumn every year.
2019-01-15 -
Culture skills of Pelteobagrus fulvidraco in four key periods
Pelteobagrus fulvidraco culture in lakes, reservoirs, ponds, rivers and other water bodies can make effective use of water bodies and obtain higher economic benefits. it is an effective way for farmers to adjust their planting and culture structure and increase their income. However, due to the miscellaneous feeding habits of Pelteobagrus fulvidraco, it is difficult to cultivate parent fish, and it is a scale-free fish, so there are different requirements for feed and culture management in different growth stages. in order to achieve high yield and high efficiency, we must master the culture skills of four key periods. First, the breeding period of parent fish. Parent fish are collected as parent fish, which are required to be bright in color, full in shape,
2019-01-15 -
High-quality fish species pick English-fragrant fish
Fragrant fish belongs to the salmon family of bony fishes, which is an important small and valuable economic fish in China. Its meat is delicate, its body color is beautiful, and there is a cavity covered with balsam on its back, which can give off an attractive fragrance, so it gets its name. After baking with fire, the fragrant fish is golden yellow, with good color, aroma and taste, and unique flavor, so it is known as one of the "five treasures of Yandang". Fragrant fish is a sub-cold water fish, which likes to live in medium-sized sea rivers with fresh water quality, fast current, low water temperature and gravel at the bottom. it has short food chain, fast growth rate and temperature.
2019-01-15 -
New special aquatic products-Brazilian turtles
The breeding of Brazilian green turtles, a new special aquatic product, is welcomed by farmers in Huzhou City, Zhejiang Province. According to the technical staff of the city's aquatic technology promotion station, 2 million Brazilian turtles have been raised in rural areas of the city this year, with a rapid development rate. Brazilian turtles are native to the Mississippi River in the United States, also known as colorful turtles, red-eared turtles, beautiful brocade turtles and so on. The appearance is beautiful, the color is colorful, the action is quick, very lovable. Raised in the water, shining in the light, red, yellow, white, brown and green appear on the head and back armour when swimming.
2019-01-15 -
There are four ways to steamed fish without fishy taste.
Steamed fish to eat, if not properly conditioned, the heat is not available, steamed fish, fish will be dark, eating meat will be thick and fishy. If you want the steamed fish to be delicious, you need to grasp the following four skills: 1. Drain all the blood. Steamed live fish must first hit the fish on the head with a knife to make it faint, and bleed from the gills so that the capillaries in the meat will not eat the blood. The steamed fish is as white as jade and has no fishy smell; on the contrary, the fish is not only dull, but also fishy. 2. Hot blisters. Kill and scrape live fish
2019-01-15 -
Six points for injection of sick turtles
In recent years, artificial turtle breeding is gradually heating up, but the disease also has a local spread trend. There are many kinds of drug administration measures for the prevention and treatment of turtle disease, such as feeding medicine, liniment medicine, injection, medicine bath and so on. Once the tortoise gets sick, the work of treatment is very different from that of other animals, mainly because the tortoise has very hard armor. According to the author's practice of breeding and production for more than ten years, the method of injection is the most effective, because the liquid is directly injected into the tortoise and absorbed quickly. However, the author reminds the majority of turtle farmers to pay attention to the following points when giving turtle injections: 1. Do not use it
2019-01-15 -
Which four levels should be adopted in fish culture at the beginning of spring?
1. Fertilizer application: when the water temperature of the pond is stable at 8 ℃ ~ 10 ℃ in early spring, fertilizer is applied to cultivate natural bait in the water. The amount of fertilization should be determined according to the fat and thin water quality and the quality of fertilizer, 60 kilograms per mu of human feces and urine, or 100 kilograms of animal manure. If chemical fertilizer is used, the ratio of nitrogen, phosphorus and potassium is 1 ∶ 1 ∶ 0.5. when topdressing, it is crushed first and then sprinkled in the whole pond, with a total dosage of 3 kg / mu and an interval of 5 / 10 days. Keep the water quality of the pool yellowish brown or yellowish green with a transparency of 30%
2019-01-15 -
Always roast fish
Clean green fish. 500 grams of Shao wine. 50 grams of soy sauce. 75 grams of sugar. 40 grams of spring onions. 8 grams of ginger. 3 grams of water starch. 10 grams of sesame oil. 5 grams of cooked lard. 75 grams (cooking method) 1. The herring meat is chopped into pieces, about 10 cm long, 2.5 cm wide and 1.5 cm thick. two。 Heat the wok over high heat, scoop in the cooked lard and add the chopped onions.
2019-01-15 -
Xingzhou red fish
Xingzhou red fish: it is a red tilapia selected from Southeast Asian strain, which is like Nile tilapia or Onion in shape, with high back, large and transparent scales, pink or orange color, red rate of more than 99%, less body color separation rate of offspring, adult fish or gray phenomenon in winter low temperature season, but the water temperature can turn red reversely after a period of culture. This fish has the fastest growing speed and large individual in red tilapia. in that year, the fry can grow to more than 500 grams, and the sexually mature individuals reach 350 grams, and the peritoneum is white and the meat is especially fresh and tender, so it is an excellent breeding species worth popularizing.
2019-01-15 -
Early spring release of fish species is exquisite
Early spring is the best season to release fish species, because during this time the water temperature is low, the activity of fish is weakened, and the fish scales are tight, the fish body is strong, and the net, fishing and transportation are not easy to be injured, so that the survival rate of fish species stocking can be improved. When putting fish species, attention should be paid to the following aspects: fish species quality of the same age, consistent specifications, body length and weight, thick back muscles, bright color, intact scales and fins, active and normal swimming, strong water recovery, and placed in the basin after leaving the water.
2019-01-15 -
Selection and release of eel species
The seedling sources of Monopterus Albus can be divided into two ways: breeding and purchasing wild Monopterus Albus. This paper focuses on the acquisition of wild ricefield eel for breeding. At present, the acquisition of wild ricefield eel for artificial breeding is a common method adopted by most eel farmers. It is generally purchased from April to September and listed on the market in winter or around the Spring Festival, which can increase the weight by 1 Mel 5 times (depending on the length of time of acquisition and breeding). Generally, the purchase price in summer is less than 20 yuan / kg, and the selling price in winter is more than 40 yuan / kg. The breeding benefit is very considerable.
2019-01-15 -
On the feeding of hermit crabs
Hermit crabs, mainly found on the coastal edges of the Yellow Sea and the southern sea, generally live in rock crevices on sandy beaches and seaside. Hermit crabs take spiral shells as parasites, usually crawl with negative shells, and will immediately shrink their bodies into the shell when they are frightened. With the gradual growth of crabs, hermit crabs will look for new shells to change shells. Dozens of known species of hermit crabs are known, and the more common species along the coast of China are square wrist hermit crab and chlamys farreri. The square wrist hermit crab is slightly larger than the chlamys farreri, and the maximum diameter of the hermit snail can reach 1.
2019-01-15 -
Control methods of fish bean beetle
① Copper Sulfate: before fish stocking, soak each cubic body of water with 8 grams of copper sulfate for 15 minutes for 30 minutes. ② copper-iron mixture: copper sulfate and ferrous sulfate (5:2) were used to hang bags every half a month during the onset season. ③ sprinkles the mixture of copper sulfate and ferrous sulfate (5:2) in the whole pool, 0.7g per cubic meter of water. ④ water depth of 1 meter per mu, sprinkle with avermectin 15 to 20 grams of the whole pool. ⑤ soaked the diseased fish in 2% salt water or 0.05% formalin for more than 15 minutes. 15kg of neem leaves per 500m3 of water during the season of ⑥
2019-01-15 -
Prevention and treatment of "autumn plague" in fish
In autumn, fish are prone to acute diseases with high mortality, such as impotence, small claw, Gill rot, water mildew and so on, commonly known as "autumn plague". Seven key points should be taken to prevent and control the outbreak of "autumn plague" in fish. 1. Improve the ecological environment. Pay attention to ecological control, properly feed full-price concentrate, tender grass, etc., as far as possible to meet the nutritional needs of fish growth, in order to improve their immune ability. 2. Actively add new water. The addition of new water can bring in oxygen and a variety of nutrients, and can also dilute the organic matter and
2019-01-15