Aquaculture Lists
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Various Reproductive Organ Diseases of cattle (1)
First, endometritis is an important cause of bovine infertility, which is divided into acute and chronic. Causes and symptoms: postpartum cows (including abortion, dystocia treatment, mating) are caused by the invasion of bacteria and other microorganisms. There are brucellosis, trichomoniasis, unreasonable operation and drug stimulation will be the inducement. During the acute attack, the body temperature rises, the appetite decreases, the spirit is low, the back is arched, the responsibility is hard, and the urine is frequent. Mucous and purulent exudates flow from the vulva, and there is a fishy smell when lying down.
2019-01-16 -
How to treat pig dysentery in winter
Winter dysentery is called epidemic diarrhea in pigs in winter. The peak of the disease is from mid-December to mid-January of the following year; the disease is urgent, spreads rapidly and spreads widely; the morbidity is high and the mortality is low, which seriously affects the growth and development of pigs. The incubation period of the disease is generally 12 Mel 18 hours. Adult pigs show symptoms of watery diarrhea after infection. The diarrhea faeces are grayish white, gradually yellowish green and smelly. Abdominal distension, vomiting, body temperature increased by 40 ℃-41 ℃ at the initial stage, and the body temperature decreased as soon as it was purged. I am thirsty and like to drink. 10-day-old piglets suddenly
2019-01-16 -
How to prevent and cure the disease and insect of Achyranthes bidentata
The disease during the growth period of Achyranthes bidentata is mainly white rust, which is characterized by damage to the aboveground parts of the plant, yellowish green patches on the leaf surface, outstanding blister protuberances on the back, 1 mm in diameter, and white and glossy sticky powder after the epidermis is ruptured. The diseased leaves turn yellow and brown when blister spots occur for a long time. Occurs in the petiole bud and other parts, resulting in light yellow spots, and then into white blister spots, the diseased stem is often swollen and twisted. The incidence rule of white rust is that the pathogen is mainly oospore.
2019-01-16 -
Diagnosis and treatment of Porcine Influenza in Winter and Spring
Porcine influenza is an acute and highly contagious respiratory organ infectious disease, which occurs suddenly, spreads rapidly and has a high incidence. The outbreak of the disease is easy to occur in winter and spring due to sudden change of climate, extensive feeding and management, malnutrition of pigs and decline of resistance. The main results are as follows: (1) the epidemic characteristics are obvious in seasonality, which mostly occurs in autumn, winter and spring when the temperature changes suddenly. All kinds of pigs can be infected. The virus is present in nasal juice, tracheal and bronchial exudates, lungs and pulmonary lymph nodes of infected pigs. Main
2019-01-16 -
Prevention and treatment of tripe disease
Cattle bellyache disease is also known as "rumen gas", this disease occurs more in summer and autumn. The main reason is that cattle suddenly eat a large number of young and juicy grass, especially alfalfa and other leguminous grass. These grasses, which cannot move down due to excess, produce a large amount of gas in the rumen for a short time, causing the rumen of cattle to swell rapidly. The abdomen of sick cattle is enlarged, especially the left side is obviously prominent, and in severe cases, it can be higher than the back. The pressure is elastic, and the beating is drumming. Sick cattle mental depression, rumination stop, hyperactivity of heart sounds, breathing difficulties, look back
2019-01-16 -
Symptoms, prevention and treatment of vitamin b1 deficiency in chickens
Etiology (1) lack of vitamin B1-rich bran, yeast, grains and processed products in feed. (2) long-term use of drugs containing pyrimidine rings and thiazoles, such as sulfonamides, etc. Second, most of the clinical symptoms of chicks occur before the age of 2 weeks, showing paralysis or spasm. The sick chicken sits paralyzed on the flexion leg, its head is extremely bent back, showing the so-called "stargazing" posture, and some of them are unable to move because of paralysis, fall to the ground and die of convulsions. In addition to neurological symptoms, adult chickens also have crown hair.
2019-01-16 -
Cast fish seeds in autumn and beware of "fish colds"
Autumn is the golden season for the massive application of silver carp, grass, green, bighead carp and other fish species to the reservoir. However, many mariculturists have found that within 2-7 days after the release of fish species, sick and dead fish will be found on the surface of the store. these diseased fish lose luster and increase in mucus on their body surface, causing paralysis, stiffness and death in serious cases. The above symptoms are typical "colds", mainly due to sharp changes in water temperature, fish skin nerve endings have been strongly stimulated and internal organ activity disorders, the mortality rate is as high as 20% to 60%. Fish stocks are shipped from fish ponds to
2019-01-16 -
Pomfret in oil
Pomfret seasoning salt, monosodium glutamate, soy sauce, peanut oil, spring onion and ginger slices 1. Pomfret clean, change knife, add seasoning and marinate for 4 hours. 2. heat the oil in the pan until it is 50% hot, add the Pomfret and cease fire. 3. Soak the fish in the remaining temperature of the oil until cooked, remove and put on a plate. Characteristic homely taste, fresh flavor and delicious taste.
2019-01-16 -
Occurrence and control of red whiteboard disease in soft-shelled turtle
Soft-shelled turtle red white board disease (commonly known as red floor disease, white floor disease) is a harmful disease of soft-shelled turtle in China in recent years, and there is no ideal treatment method so far, but through the efforts of various aspects, the main pathogen and pathogenic conditions of red white board disease have been basically found, and a breakthrough has been made in prevention, especially the progress in the prevention of Chinese herbal medicine and immune vaccine, which has laid a foundation for controlling the occurrence of red white board disease in the future. Based on the relevant domestic research and combined with my own practice, the author introduces the occurrence, prevention and treatment of red whiteboard disease as follows for reference and application.
2019-01-16 -
Skillfully manage fish at the beginning of winter
1. The transformation of the pond. Transform ponds from small ponds to big ponds and shallow ponds to deep ponds during the winter leisure season. After transformation, it can not only increase the water capacity of the pond, but also improve the environment of the pond. The ponds with better conditions should also be drained and the thick silt should be removed so that the thickness of the pond mud can be kept at about 20cm. Root out weeds around the pond and raise and strengthen the ridges. two。 Disinfect the pond. The repaired pond should be sterilized with quicklime. Pond disinfection should be carried out on sunny days. Dry disinfection, per 667 square meters
2019-01-16 -
11 of the most valuable crabs in the country
Yangcheng Lake hairy crab: this crab is produced in Yangcheng Lake, Suzhou area, Jiangsu Province. It is a famous Chinese product at home and abroad. Yangcheng Lake hairy crab, a general fat, generally 3 weigh 500 grams, the big one only weighs more than 250 grams, the largest can reach 500 grams, green back, white belly, golden claws and yellow hair, ten limbs, crab meat plump, nutritious. Since ancient times, Yangcheng Lake hairy crabs have captivated countless diners. Zhang Taiyan's wife, Ms. Tang Guoli, said in a poem: "it's not Yangcheng crab that tastes good, so why live in Suzhou in this life!" Tianjin purple crab: this is the middle
2019-01-16 -
Six pieces of fish feed formula
1. Suitable for raising tilapia in running water and cage: 20% grass meal, 30% fish meal, 20% bean cake, 20% corn gluten meal, 20% rice sugar, 10% wheat bran, 5.5% corn flour, 1% bone meal, 0.5% salt and vitamins. two。 Suitable for grass carp: sweet potato rattan meal 45%, bean cake 13%, rice sugar 15%, wheat bran 12%, fish meal 3%, corn flour 10%, bone meal 1.5%, salt 0.5%. 3. Suitable for silver carp and grass carp: straw
2019-01-16 -
Crystal shrimp balls
Cooking category: fried cuisine: Cantonese food category: shrimp and crab taste: salty and fresh flavor: color white and transparent, crisp to eat, summer most suitable ingredients: prawns (10) excipients: monosodium glutamate (12.5g), refined salt (a little), ground chestnut powder (a little), sesame oil (a little), pepper (a little) production: 1) peel the prawns to the head and tail, and then remove the surface of the black skin with a blade, each bright Prawn Crackers into 3 slices Marinate and put in alkali water (every 500 grams)
2019-01-16 -
Fishery Science and Technology Cooperation Network: 100 key achievements of Aquatic Science and Technology
At the 2007 National Fisheries Science and Technology Cooperation Network meeting, which ended today, a declaration on jointly promoting the "Ten actions" was issued to the national fishery science and technology community, and 100 key achievements of fishery science and technology were introduced and released to the public. It is reported that 100 achievements in aquatic science and technology cover the fields of conservation and development of resources, cultivation of aquatic varieties, healthy aquaculture, prevention and control of aquatic diseases, quality and safety of aquatic products, fishery equipment and engineering, and so on. there are not only national-level achievements in high and new technology and promoting independent innovation, but also meet the needs of industrial development.
2019-01-16 -
Technical points of raising eel in Taishan soil pond
The eel culture model in Taishan soil pond is an extensive culture model developed with reference to the soil pond fish culture model. Its characteristics are: ① pond is large, generally has more than 4 mu, up to 20-30 mu, piece development: ② stocking density is small; ③ water source is insufficient, one pool water is cultivated, the water depth is less than 1.2m; ④ soil quality is good, mainly loam soil; ⑤ oxygen enhancement facilities are adequate; ⑥ feeding method is full of meals to leftover bait; ⑦ annual cultivation rate is more than 90%. Most of the Taishan soil ponds are developed from the land after reclamation, and most of the soil is loam, so it can retain water.
2019-01-16 -
Several kinds of fish feed formula
Suitable for grass carp or silver carp rice straw meal 70%, bean cake 15%, cotton cake 10%, corn flour 5%, plus bone meal 1%, salt 0.5%, vitamin amount. Second, it is suitable for raising grass carp, soybean straw, or peanut vine in cage, 15% of bean cake, 10% of rapeseed cake (or cottonseed cake), 10% of corn flour, 5% of fish meal, 1% of clam shell meal (or bone meal) and 0.5% of salt. Third, suitable for grass carp dried grass powder (or peanut vine, sweet potato vine) 45%, bean cake
2019-01-16 -
Separate cultivation, capture and selection of adult eel
1. There are two ways to raise and catch adult eels, generally using nets in eel ponds with larger area, and in eel ponds with small area or concrete structure, the eels can be drained directly and put into eel cage. The method of net fishing is used, that is, feed is used to attract food in the food farm, and when most of the eels are concentrated in the food field, the food field is surrounded by a net and a net is set up in the position of the food field. Collect the captured eel in a long eel collection box, which should be located on the side of the eel pond which is convenient for selection and operation, and 3 ~ 3 away from the long box.
2019-01-16 -
Mass Cultivation Technology of Summer Flowers of Myrtle (Megalobrama tricornis, Megalobrama amblycephala)
The fish (Megalobrama tricornis, Megalobrama amblycephala) belongs to the fresh water high quality fish. It is not only the fine species of pond culture, but also suitable for stocking in large water surface. The large-scale cultivation technology of summer flowers is now introduced as follows: First, the conditions of summer flower cultivation pool Summer flower cultivation pool requires sufficient water source, water quality without pollution, and easy drainage. The area should not be too large, generally 1-3 mu, water depth 1-1.2 meters is appropriate. Pond must not leak,
2019-01-16 -
Present situation and development prospect of black fish culture
People are used to calling them mullet, black fish, talent fish, raw fish and so on. Black fish is the most widely distributed and most productive species in the family Carpinidae. With the increase of market demand, blackfish is likely to become one of the most promising breeding objects in China at the beginning of the 21st century. There are 7 species of snakehead fishes in China. They are black fish, snakehead snakehead, snakehead snakehead, striped snakehead snakehead, snakehead snakehead and long snakehead snakehead. Among them, only black fish is a widespread species, which is distributed in all major river systems in China, and its yield is the largest. Snakehead snakehead, snakehead snakehead and snakehead snakehead are only distributed in China.
2019-01-16 -
The optimum protein level of fish feed
Protein is the main nutritional index of compound feed for fish. the level of protein directly affects the internal quality of fish feed. The optimal protein requirements of different fish species and growth stages are also different. Too high protein content will not only cause a waste of feed protein resources, but also increase the pressure on pond water quality management. If the protein content is too low, it will cause slow growth and poor disease resistance of fish on the one hand, and delay production on the other hand. Therefore, mastering the optimal protein level of fish feed is very important to guide fishery production.
2019-01-16