Aquaculture Lists
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Source and selection of parent fish of Pelteobagrus fulvidraco
Parent fish for artificial reproduction can be fished and selected directly from rivers, lakes, reservoirs, ponds and other water bodies. This is a common method for artificial reproduction of Pelteobagrus fulvidraco in culture units at present. If there are conditions, you can cultivate your own Pelteobagrus fulvidraco parent fish. And choose from it. When fishing for parent fish from rivers, lakes, ponds, reservoirs or ponds, we should pay attention to the following: specific requirements: ① should be determined to catch parent fish in autumn and winter, when the water temperature is low, which is conducive to selection and operation, and is especially easy to transport.
2019-01-16 -
Baked eggs with silverfish
Ingredients: egg 4, silverfish 1/3LB, green bean seasoning: salt, ginger slices 1, vinegar method: 1. First squeeze the silverfish dry, add less salt, and stir-fry a piece of ginger in an oil pan and set aside. And remove the ginger slices. two. Stir-fry the green beans and set aside. three. Beat 4 eggs, beat well with salt, add a little more cooking oil, heat to 80% to 90% over high heat (the oil is very hot), pour in the eggs and fry into a large omelet, that is, in a few seconds, turn to low heat immediately.
2019-01-16 -
Key measures for cultivating large size fish species
Fish species are the material conditions for stable and high yield of adult fish. Practice has proved that large-size fish species have strong ability to adapt to the environment, escape from enemy damage, disease resistance and feeding ability, so the survival rate is high, the size of water is large, and can achieve the goal of high yield. In order to cultivate large-scale fish species, in addition to "four-fixed" feeding, "three-look" fertilization, daily pond patrol and fish disease prevention and control, the following measures should also be taken: 1. Add new water to improve water quality. "when the water rises by an inch, the fish grows by three cents" and "the wide water raises the big fish". In the process of feeding
2019-01-16 -
Prevent money turtles from laying sand shell eggs and soft shell eggs
Money turtles mate and fertilize from March to April every year, and lay eggs and hatch from May to July. A sexually mature female turtle lays 9 eggs per year, while the money tortoise lays less eggs in turtles. Improper feeding and management or affected by other factors will also cause some money turtles to lay two or even a whole litter of sand shell eggs (the surface of the eggshell is sandy, not smooth) or soft shell eggs, affecting the hatching rate and causing certain economic losses to the breeding of money turtles. 1 causes the money tortoise to lay sand shell eggs or soft shell eggs a) lack of eggshells in feed
2019-01-16 -
Disease control of barracuda
Barracuda belongs to Mugilidae, similar in external morphology to mullet, but with underdeveloped fat eyelids. It lives in coastal areas and estuaries, and can also live in fresh water. It is a eurythermal and euryhaline fish. In its natural state, it scrapes diatoms and putrefied organic matter, and also eats benthos. Artificial compound bait can be used in pond culture. There is a saying of "south mullet and north shuttle" among the cultivated varieties. Barracuda culture is dominant in Jiangsu and northern areas. In recent years, the trend of breeding barracuda in freshwater ponds in coastal areas has developed rapidly.
2019-01-16 -
What should be paid attention to in dealing with eel summer syndrome
We should pay attention to the following points: first, the treatment of pool water. As it may take a long time to use the drug, it is easy to worsen the water quality, so it is best to change the water greatly and keep the water environment clean at the end of each medication cycle. Second, in the period of high temperature, we should pay attention to the changes of water temperature and water quality. In general, ventilation should be strengthened, dissolved oxygen in water should be increased, and if necessary, the water level should be raised to prevent the increase of eel death caused by the sharp change of water temperature during medication. Third, in the early stage of the disease, both antibiotics are used.
2019-01-16 -
Technical measures to reduce the death of spawning parent fish
Reducing the death of spawning parent fish is an important technical work in fish fry culture. There are two main factors causing the death of parent fish in spawning. One is that parent fish consume a lot of physical energy in the process of spawning and reproduction, which increases the side effects of spawning drugs and reduces the resistance of parent fish. If the fish is seriously injured, various pathogens will take advantage of the opportunity to infect the fish and cause disease, resulting in the death of the parent fish. Second, the physique of the parent fish is poor, or the water temperature changes greatly during the induction of labor, and the improper dose of the drug (the dose is too high or too low), the parent fish can not give birth normally.
2019-01-16 -
Canned shark fin in soup
Process raw material acceptance → raw material treatment → boiled soup → canned → seal → sterilized → packaging → finished product. Operation points 1. Raw material acceptance: 1.1 shark fin: using dried products produced in Shantou, Guangdong Province. 1.2 Chicken breast, chicken shell, scallops, ham, ginger, liquor and dark soy sauce are all sold on the market. 1.4 Xanthan gum, made in Germany; modified starch, made in France. 2Raw material treatment: shark fin was soaked in clean water for 12 hours, then at 50 ℃.
2019-01-16 -
Tuna fishing
There are many ways to catch tuna, and now the most popular one is longline fishing. Longline fishery can be divided into three types: floating longline, bottom longline and middle longline. Tuna longline fishing gear is mainly composed of dry rope, branch line, float, floating line, fishing hook, etc., that is, a number of branch ropes with hooks are hung on the extended dry line to catch tuna. A number of floats are tied to the dry rope, and the length of the floating rope and branch rope between the dry rope and the float plays a role in regulating the fishing water layer. The hook needs to be loaded with erh material. The main ingredients are frozen bamboo swordfish, squid and sardines.
2019-01-16 -
Key points of Management in the Middle and late stage of Shrimp
In the middle and later stage of shrimp ponds with a body length of 7-8 cm, due to the increase of feeding amount, shrimp excreta gradually accumulated, coupled with the joint effects of dead algae, residual bait, oxidation and decomposition of organic matter at the bottom of the pond, great changes have taken place in pond water quality, sediment, microorganisms and so on. The specific changes of water environment and shrimp in the middle and later stages of shrimp culture are as follows: ph value gradually increased, water color changed from clear green and yellowish green to brown, tea green, transparency decreased, turbidity increased, the bottom of the pond was black and smelly, and the number and species of harmful microorganisms increased.
2019-01-16 -
Crystal crab rolls
Guangdong cuisine characteristics crisp and refreshing, fragrant, shaped like crystal. Ingredients: 30g crab meat, 200g white radish, 50g carrot, 30g cucumber Preparation method: Cut the white radish into thin slices by spinning method, marinate it with salt until soft and rinse it with cold water. Shred carrots and cucumbers and stir-fry crab powder to make crab powder stuffing. wrapping the crab powder stuffing into white radish slices to prepare radish rolls. Soak radish rolls in sour and sweet sauce made with white vinegar, sugar and lime juice for 2 hours. Change the shape of the knife to be ready
2019-01-16 -
Matters needing attention when eating fish head
Professor Wang Cunxin, a fish research expert at the Institute of Oceanography of the Chinese Academy of Sciences, said that there are four major fish farmers in China, namely, herring, grass carp, silver carp and bighead carp. Silver carp is also called silver carp or silver carp. there are more silver carp in bighead carp, but the fish heads we usually eat in restaurants are mainly silver carp and silver carp. The reason why these two kinds of fish are used for fish head dishes is that they grow rapidly and can be raised artificially; second, because herring and grass carp mainly eat grass, while silver carp and bighead carp mainly eat plankton, there is naturally more meat than the former two. Silver carp, especially the head of silver carp
2019-01-16 -
Golden trout: the first new species in China
Yongchang County Golden Trout breeding Base is located in Jiaojiazhuang Township, 10 kilometers west of Yongchang County. The township is rich in spring water resources, constantly flowing all the year round, good water quality, rich in strontium, lithium, zinc and other minerals beneficial to the human body, without harmful elements, without any pollution, and is a pure natural treasure. Water quality and water temperature are very suitable for the growth of cold-water freshwater fish. At present, a Yongchang golden trout breeding center has been built in the township, with 6 professional golden trout farmers, more than 200 parent fish and more than 20,000 large fish species.
2019-01-16 -
Treatment of Pig poisoning with traditional Chinese Medicine
The pigs were poisoned with excessive salt to take 30 grams of cabbage leaves and 300 grams of wild chrysanthemum, and the diseased pigs were fed with fried water twice a day for 3-4 days. Pigs eat moldy corn poisoning to take 30 grams of licorice, 100 grams of mung beans, fried into soup, add 60 grams of sugar, give the sick pigs a dose. Pigs eat potato poisoning to take 10 grams of honeysuckle, 30 grams of alum, 30 grams of licorice, fried into soup, cool to warm, add 30 grams of honey to the sick pigs. The pig was poisoned with dysentery to take 500 grams of licorice decoction.
2019-01-16 -
Processing of Beijing Roast Duck
Beijing Roast Duck is a famous specialty of Beijing, which is made from Beijing stuffed duck. The product is characterized by golden yellow and bright skin, white and tender meat, crispy meat. The technological process is as follows: raw material treatment → scalding cinnamon color → cold embryo → roasting → out of the oven brush oil 1, raw material treatment using 2.5-3kg healthy duck, slaughtered by cutting off three pipes, the feather is eviscerated, the duck feet and wings are cut off, and washed with clean water. 2. ironing the duck with boiling water for 4 times, then pouring it with sugar water (caramel: water = 1:6).
2019-01-16 -
Prevention and treatment of fracture and dislocation in pigs
The fracture of the bone caused by the impact of external force is called fracture (also known as incomplete fracture), and the fracture is called fracture (also known as complete fracture). The joint head of the bone leaves the joint fossa and cannot be automatically restored, which is called dislocation. When the two opposite articular surfaces can not touch each other completely, it is called complete dislocation, and the partial contact between the two articular surfaces is called incomplete dislocation. 1. The cause of traumatic fracture is caused by various mechanical violent shocks, such as whipping, fighting, falling, jumping, etc., such as rickets, osteomalacia, osteomyelitis
2019-01-16 -
Fattening trick of old and disabled cattle
Fattening old and residual cattle is an effective measure to give full play to the production performance of cattle and improve the economic benefits of raising cattle. Before fattening, first give cattle deworming and preventive vaccination, and then take intensive fattening, that is, to achieve the purpose of fattening in a short period of time (80 ~ 100 days). The following is an introduction to the fattening tricks of the old remnant cattle that I have mastered as follows: Amoy rice water and rice bran fattening skills 20 kg, 30 kg per cow per day, 2 kg ~ 3 kg of rice bran, mixed and fed to cattle, other routine
2019-01-16 -
Prevention and treatment of abomasum obstruction in sheep
Abomasum obstruction in sheep, also known as abomasum accumulation, is mainly caused by vagus nerve regulation disorder, abomasum content accumulation, gastric wall dilatation, volume enlargement, obstruction, and secondary valvular secret knot. Serious pathological processes that cause extreme disorders of digestive function, rumen effusion, autologous poisoning and dehydration, often leading to death. The expert relieves the disease. Etiology of ⑴: mainly due to improper feeding management and feed changes; some are due to digestive and metabolic disorders; also seen in vagus nerve regulatory disorders
2019-01-16 -
Jinding duck
Originated in Longhai, Tongan, Nanan, Jinjiang and other counties and cities in Fujian Province, it is one of the high-yield breeds of egg duck in China. Jinding duck has a long body, with red-brown forebody, gray-brown back, dark markings on the belly, dark brown wing feathers and dark brown tail feathers. The mother duck has a thin and compact body and a plump belly. The whole body feathers are reddish brown sparrow feathers and mirror feathers. Beak yellowish green, shank web orange, iridescent brown. The adult male duck weighs 1.76 kg. The mother duck weighs 1.78 kilograms. The female duck begins to lay at 120 days old and lays 280 eggs a year.
2019-01-16 -
Characteristics of Nutrition and Metabolic Diseases in Chicken
1. The incidence is slow, the incidence is high, the course of disease is long, and most cases have a long-term recessive process. 2. generally, the body temperature is low or in the normal range, there is no contact infection between chickens, and most of the diseased chickens have diversified clinical symptoms such as growth arrest, anemia, digestive and reproductive dysfunction and so on. 3. Early diagnosis is difficult, but this kind of disease has characteristic changes of biochemical indexes of blood or urine or pathological changes of organs and tissues. Through the examination and analysis of feed or soil and water quality, the cause can be identified.
2019-01-16