Aquaculture Lists
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What should we pay attention to when catching pond fish in autumn?
First, pay attention to the weather. In autumn, the fishing must be carried out before and after the dawn of sunny days, cool climate and non-floating head of the pond fish, which has the least impact on the fish in the pond and can supply the fresh fish caught in the morning market in time. Haze, muggy weather is not suitable for net fishing, so as not to cause a large number of dead fish. In addition, it is not suitable to catch fish in ponds when they have floating heads or fish diseases. Second, feed should be restricted before arrest. After the fish is full, the oxygen consumption increases, and it will jump and flee when pulling the net, which is easy to cause casualties. Therefore, the catch was made by pulling the net.
2019-01-16 -
fish with Chinese sauerkraut
[dish name] pickled cabbage fish [cuisine] northeast dish [characteristics] fresh and refreshing, appetizing and invigorating spleen, sober up and refreshing, delicious soup. [Ingredients] 1 carp (about 1000 grams), 250 grams of aged pickled cabbage. 1 egg white, 40g mixed oil, 1250g soup, 4g refined salt, 3g monosodium glutamate, 4g pepper flour, 15g cooking wine, 25g pickled pepper powder, 10 pepper, 3g ginger slices and 7g garlic cloves. [System]
2019-01-16 -
Prevention and treatment of gastrointestinal diseases of turtles
Gastrointestinal diseases of turtles, also known as gastroenteritis or enteritis, are common and easy to occur in late spring, summer and autumn. The main results are as follows: (1) when the symptomatic turtles suffer from gastrointestinal disease, they are listless, slow in activity, loss of appetite until waste, only like drinking water; soft feces can not be formed, the color is yellowish brown, dark brown or pig liver; abdominal distension and stagnation of qi, severe water diarrhea and stench, pH is strongly alkaline; in the later stage, the eyeball sagged, the skin was dry, relaxed, inelastic, no luster, and finally died of failure. Autopsy showed gastrointestinal congestion and inflammation. 2 prevention
2019-01-16 -
What are the characteristics of kissing fish? How to raise it?
Kissing fish is also called kissing fish, kissing fish and so on. Belongs to the family Percidae. It is native to Indonesia. The body is oval, flattened laterally, the caudal fin is slightly concave in the middle, and the body length can reach 20 cm. The fish body is milky white, each fin is transparent, slightly white, and the snout is light flesh red. The suitable water temperature is 22 ℃ ~ 26 ℃ and prefers acid soft water. Kissing fish often use their mouths to scrape water plants and algae and moss on the walls of the tank, which is known as the "cleaner" of the fish tank. There are folded gills. Kissing fish have many jagged young teeth on their lips. When two kissing fish
2019-01-16 -
Prevention and treatment of snakehead snakehead disease
(1) pathogenic fish carp. (2) after the symptomatic diseased fish are parasitized by fish fish, they are extremely restless, swim wildly, jump wildly, increase body surface mucus, and are easy to be complicated with water mildew disease, which do great harm to fish species and can cause a large number of diseased fish to die in serious cases. May to September every year is the peak season of the disease. It is a common disease of snakehead. (3) the whole pond was sprinkled with 0.4 × 0.000001 fish and insect cleaning.
2019-01-16 -
Ding fish year old
Dingfish, also known as blackfish, is distributed in Europe, to the Ob and Yenisei rivers in the east, and is only found in the Ertix River and Ulungu River basins in China. Dingyu is also one of the main freshwater farmed economic fish in European countries, and it is known as the royal pet fish in Europe. There are many kinds of fish in the genus fish, and the fish age is of the most economic value, which is one of the more famous fish in China. The fish is coarse-bred, omnivorous, cold-resistant, disease-resistant, easy to transport over long distances and well accepted by the market. The meat of the fish is so delicious that it
2019-01-16 -
Production of shrimp paste and products
Shrimp paste is one of the traditional shrimp foods along the coast of China and Southeast Asia. Its rich nutrition and unique flavor are favored by diners at home and abroad. (-) Shrimp paste is one of several kinds of planktonic crustaceans, among which the main species are: (1) Chinese hairy shrimp; (2) Japanese hairy shrimp; (3) Mysis shrimp; (4) ditch shrimp. The salt used in the production of shrimp paste must meet the national hygienic standard of washing edible salt. (2) the production technology of shrimp seedlings modern fermentation is the most scientific production process at present. The technological process is as follows: original
2019-01-16 -
How to judge fish pollution poisoning
Fish death may be caused by disease, hypoxia, poisonous algae, mechanical injury, pollution poisoning and other causes, and pollution poisoning is the most common cause of death. The following introduces several naked eye judgment methods of common pollution poisoning for reference in production. Heavy metal pollution poisoning. Heavy metals refer to metals with relatively high density, such as lead, manganese, zinc and so on. The gills of poisoned fish are grayish white and secrete a large amount of mucus, forming flocculent deposits, which block fish gills and cause respiratory disorders. Poisoned fish often float on the surface of the water.
2019-01-16 -
Production and processing of spicy fish
Silver carp is a famous freshwater fish species, which has a large yield, but it has low value because of its more fine spines. At the same time, there are more small and medium fish in similar products in the market, but there are fewer large-body fish in fast food. In order to increase its added value, the author has developed soft-packaged spicy fish after many experiments. The processing technology and formula are introduced as follows: first, silver carp (about 0.35Kg), salt, monosodium glutamate, pepper, fennel, cinnamon, pepper, grass fruit, ginger powder, cooking wine, soy sauce, white onion, fresh ginger,
2019-01-16 -
Yellow plate crucian carp
Yellow plate crucian carp, the scientific name triangle carp, is a wild famous and excellent economic fish in rivers. Tender meat and delicious taste, the price of yellow plate crucian carp weighing more than 400 grams is as high as 80m / kg, which has a very high economic value. In recent years, due to the deterioration of river ecological environment and excessive fishing, the wild resources of yellow plate crucian carp are becoming more and more depleted. In order to develop and protect this precious natural resource, Shaoguan Fisheries Research Institute has carried out artificial culture and reproduction experiments of yellow plate crucian carp since 2001 and achieved success. I. Pond
2019-01-16 -
Boiled red grouper
Raw materials: red spot fish, pepper, pepper (cut into small sections of about 2cm), sugar, salt, cooking wine production method: 1 wash the fish clean, take out the fish bone, start from the tail, the fish fillet is large and thin is the best. Add the right amount of salt, pepper, sugar and a small amount of cooking wine to the fish fillet and marinate for 20-30 minutes. Put the oil in the pot, wait for the oil to be 90% hot, first put the pickled fish head, deep-fried and put into the basin, then put the right amount of fish in the pan until all the fish are slippery. four
2019-01-16 -
Water for breeding of kissing fish
(1) activated carbon filter water: put activated carbon into plastic or enamel buckets and let tap water flow in from the inlet at the bottom and out from the outlet at the top. The filtered water is stored in aquariums or other containers, which can be used not only for daily breeding, but also for the breeding of ordinary tropical fish. (2) filtering water with ion exchange resin: using ion exchange resin as filtration material, calcium ion, magnesium ion and nitrite in water can be adsorbed with the help of the adsorption capacity of anion and cation exchange resin. The filtered water quality is neutral soft water, suitable for
2019-01-16 -
Prolapse of turtle penis
[cause] the testosterone in the tortoise is too high. [symptoms] normal turtles, sexually mature males, when mating during the breeding season, the penis is exposed to mate with the female, and after mating, the penis shrinks into the cloaca. The penises of some male turtles are occasionally exposed and immediately retracted. Abnormal male turtles, after the penis is exposed, can not be retracted in time, exposed for a long time, bitten by other turtles or scratched by foreign bodies, but also due to exposure for too long tissue necrosis, causing infection, and other diseases
2019-01-16 -
Petrand pig
Petland pigs are produced in Belgium. The body is square, wide and short, with thin bones and short limbs and well-developed muscles. The hair is gray with black patches and the ears are moderately forward. The average litter size is about 10 piglets. It is reported that 90kg body weight growth fat has a carcass lean rate of 66.9%, a daily gain of 700g, and a feed efficiency of 2.65. The growth rate of commercial pigs decreased significantly after 90kg. Petland pigs have a severe stress response, and about 50% of pigs have halothane recessive genes. It is easy to appear gray meat after crossing with purebred Petrand as male parent.
2019-01-16 -
A simple method for identifying diseased pigs
1. Look at the eyes. In healthy pigs, their eyes are bright and bright, and it is a sign of illness if they are found to have dark, red and excessive droppings. 2. Look at the skin. Healthy pigs have smooth and round skin and plump muscles, such as rough and inelastic pigskin, with swelling, ulcers, erythema, rotten spots and so on. 3. Look at the coat color. Healthy pigs, the coat color is bright and shiny, if the pig hair is rough, inelastic and messy, it is a sign of illness. 4. Look at the nasal plate. A healthy pig with a wet nose plate with sweat balls; such as a pig nose plate.
2019-01-16 -
Two improved breeds of meat duck are recommended.
1. Digao Duck is a large-scale meat duck bred by Australia's Digao Company. The duck was introduced into China in the 1980s. The parents of this duck are raised on overseas Chinese Farm in Guangdong Province. In 1987, the parent generation of Digol duck was introduced into the duck breeding farm in Nanhai County, Guangdong Province, and the commercial generation duck was well received. The appearance of Digao duck is similar to that of Beijing duck. The feathers of the ducklings are red and yellow, and after changing their young feathers, the feathers are white. The head is a little longer, the neck is thick, the back is long and wide, the chest is wide, the body is slightly longer, the chest muscle is plump, the tail is slightly warped, and there are 2 or 4 sexual finger feathers.
2019-01-16 -
Pigs like archery. What's the reason?
1, the pig is not fed; 2, the pig may be sick; 3, the pig lacks some trace elements. You can pick some soil to arch it or put it outside free arch soil, or you can put some carbon ballast to let it arch. It is better to be fed with fine feed.
2019-01-16 -
Prevention and treatment of esophageal obstruction in cattle and horses
The obstruction of esophagus in cattle and horses is the obstruction of feed in lumps or lumps or foreign bodies in the esophagus and cannot descend in the stomach. It is characterized by sudden onset, dysphagia, salivation, reflux, rumen flatulence and so on. The traditional Chinese veterinarian is called hiccup. 1. To remove the obstruction in the esophagus, the following methods can be used: ① extraction from the mouth: if the obstruction is near the pharynx or retropharynx, fix the foreign body, install an army-style mouth opener and press the tongue, reach in and take it out. If the obstruction is in the neck esophagus, it is hard and smooth.
2019-01-16 -
Gout in chickens and poultry
The main results are as follows: (1) etiology: poultry gout is mainly a metabolic disease caused by protein metabolism disorder. High dietary protein concentration is the main cause of the disease. In addition, sodium bicarbonate poisoning, vitamin A deficiency, sulfonamides poisoning, aspergillus toxin poisoning, damp henhouse, lack of exercise can induce the disease. (2) symptoms and changes of autopsy: due to the different sites of urate deposition in the body, gout can be divided into two types: visceral gout and joint gout. In the flock of chickens
2019-01-16 -
Common causes of stress in chickens
In chicken production, especially under the condition of intensive production, the chicken body has a certain adaptability and adaptability to the stimulation of feeding density, climate, immunization, transfer, grouping, capture, beak breaking, light and other factors. If the intensity of these stimuli is too large or lasts too long, which exceeds the physiological tolerance of the body, it will affect the growth, development, reproduction and disease resistance of chickens, and even directly cause death. The main factors that cause chicken stress are as follows. First, physiological stress. The high-yield chickens raised on a large scale are all caged.
2019-01-16