Aquaculture Lists
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Dying Organs and Physiological Characteristics of Female Foxes
Female reproductive organs are composed of ovary, oviduct, uterus, vagina and external reproductive organs (vulva). The external genital organs include the vestibule, labia and clitoris. Female foxes ovary located in the third and fourth lumbar, grayish red, oestrus ovary length 2 cm, width 1. 5 cm; oviduct length 5-7 cm. The ovaries and fallopian tubes are covered with adipose tissue. The cervix protrudes into the vagina. The vagina is 6-8 cm long, connected to the cervix at the front and to the reproductive vestibule at the rear. The vestibule has two more developed processes.
2019-01-16 -
The reason why dogs bury bones
Animals generally have a special habit, and different animals have different habits. Some animals store some food in advance in order to prevent "food loss". We call this habit food storage. For example, every autumn, Shrike birds often catch insects, lizards, frogs and other small animals that they like to eat and hang them on prickly branches or thorns so that they can eat them at any time. The purpose of catching small animals is still to prevent a shortage of food in winter. Squirrels have the same habit. Dogs also have the habit of storing food.
2019-01-16 -
Preparation for artificial breeding of queen bee
Before artificial rearing, the following preparatory work needs to be done: (1) parents should be selected to choose healthy and disease-free colonies whose honey or royal jelly output exceeds the average yield of the whole field, with weak bee distribution and rapid development. The father colony is the colony that provides the drones, and the mother colony is the colony that provides the queen. Both parent and parent groups are used to cultivate bee larvae. A single parent group can also breed thousands of drones. If one or two groups of species are used to breed queens and drones every year, the whole colony will form inbreeding, making productivity and
2019-01-16 -
Feeding and management of commercial donkeys for pollution-free meat in captivity
With the improvement of people's living standards, the demand for animal food is gradually diversified, high-quality, and green, donkey meat and water and other products are very popular. High protein, low fat, delicious taste, can cook a variety of dishes. Since ancient times, there has been a saying that dragon meat is in the sky and donkey meat is underground in China, which shows that people have long recognized donkey products. Donkey meat restaurants can be seen everywhere in some large, small and medium-sized cities, but there are no tables with hundreds of surnames. Reasons: first, there are too few resources; second, there are few large-scale farming.
2019-01-16 -
Cocoon collection and sale of silkworm
1. The suitable time for cocoon collection: after the cocooning of mature silkworm, molting and pupation, with the development of pupa, the skin becomes hard and the skin color becomes darker, when the skin color changes to yellow, it is the suitable time for cocoon collection. The spring silkworm period is 6-7 days after the upper cluster. The summer and autumn silkworm period is 5-6 days after the upper cluster, and the late autumn silkworm period is 7-8 days after the upper cluster. The cocoon is picked too early, the silkworm has not yet pupated, the hairy foot cocoon is not easy to be evenly baked during cocoon drying, the cocoon quality is reduced, and the hairy foot cocoon is easy to seep the dirt out of the cocoon layer during cocoon cooking, which makes the color of raw silk worse.
2019-01-16 -
When is the best time for dog breeding?
When puppies reach a certain age after birth, male dogs can produce sperm with the ability to fertilize, which is called sexual maturity. Maturity does not mean that it is possible to reproduce, because the dog is not yet fully mature. About 12 months of age is the appropriate time to start breeding. In general, the sexual maturity of small dogs is earlier, while that of large dogs is later. It is generally believed that sexual maturity is 8-12 months old after birth, and there are 6 months earlier. It's different all over the country. Small and medium-sized dogs are 1.5 years old and have a high survival rate of reproduction.
2019-01-16 -
The basic method of diagnosis of leprosy
Key points for attention in practical application reasonable collocation between different protein feeds due to different qualities of different protein feeds, mainly due to different contents of essential amino acids, the reasonable collocation of protein feed must be considered when compounding dairy cow feed. in order to ensure the intake of reasonable protein nutrients for dairy cows. In the actual production, when we use corn meal, silage corn and DDGS, because of the high methionine content and the relative lack of lysine, lysine becomes
2019-01-16 -
Identification and management of hateful doe
Every year during the birth and lactation period of female deer, due to the lack of management skills in some deer farms, the phenomenon of hateful female deer harming newborn deer and feeding managers occurs from time to time. Some newborn deer are killed alive, and some breeders or technicians are scratched. According to the investigation, a sika deer hated female deer killed five newborn deer in the first few days of her birth, and scratched two young and able-bodied managers. The harm of hateful female deer has led to a significant increase in the mortality of young deer, which should be paid full attention to. 1 recognition
2019-01-16 -
The introduction of snakes
The quality of snake introduction is related to the survival rate and production capacity of snakes. The acquisition of snake species can be approved by the relevant management departments to catch snakes in the wild, and it is necessary to introduce species of snakes if local snake resources are scarce. 1. The best season for introduction is that the weather is suitable in spring and autumn, and the breeding can enter the spawning or breeding period soon after introduction, which is especially suitable for beginners. Autumn is also a good season for introduction, because it is neither too cold nor too hot, and it is a peak season for snakes to hunt.
2019-01-16 -
Application of melatonin in Fox Industry
Melatonin is an indole hormone secreted by the pineal gland in the animal brain, also known as pineal gland hormone. It was first applied in fur farms in North America in 1985. China solved the technology of synthetic melatonin and manufacturing melatonin implants in domestic chemical raw materials at the beginning of 1993. After 1998, melatonin is widely used in fur breeding in Northeast China. Melatonin has been used in Dongjin improved breed livestock farm in Xiangfan City, Hubei Province since 1999. in the course of 8 years of practical application, melatonin can induce fox fur to mature ahead of time and delay public silver black.
2019-01-16 -
A New Special Aquatic Product-- Brazilian Green Turtle
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, and it is very lovely. Raised in the water, shining in the light, swimming on the head and back armor
2019-01-16 -
Prevention of fish hypoxia in winter
In winter, fish in ponds need dissolved oxygen to maintain slow respiration although their feeding activity decreases. Dissolved oxygen in ponds comes mainly from phytoplankton photosynthesis and direct dissolution of oxygen in the air into water. However, in the cold winter, once the water surface of the pond freezes, the oxygen in the air cannot be dissolved in the fish pond. When snow covers the ice surface, sunlight cannot directly shine into the pond water, and green plants in the water cannot carry out photosynthesis and produce oxygen. And most fish gather at the bottom of the water in winter,
2019-01-16 -
Eight treasures crab rice
Fujian cuisine: 2 green crabs, 4 cups of glutinous rice, 2 tablespoons each of diced mushrooms, dried shrimp, diced bamboo shoots, diced ham, 1 tablespoon wine, 1 tablespoon soy sauce, 5 cups soup, 3 tablespoons raw peanut (peeled), 2 green onions, 1 tablespoon onions and 4 slices of ginger. Production process: ① hot oil pan, stir-fry diced mushrooms, dried shrimps, diced bamboo shoots, ham, peanuts, etc., sprinkle wine and season with soy sauce and salt, then add 1 cup of soup and bring to a boil. After flameout, add the cooked glutinous rice and mix evenly.
2019-01-16 -
Tortoise songs in December
Frozen water turned into ice in January. Lesser Cold and Greater Cold regularly checked to prevent enemy damage while sleeping, and the young turtles did not relax in special care. When the Beginning of Spring and Rain Water came in February, the chilling ice was first opened in spring, and the turtle pond was protected against cold and heat preservation, and the work was arranged early for one year. The spring light of the Spring Equinox is beautiful, the tortoise dream awakens the rain and Fei Fei, raises worms to prepare bait, and the turtle swims in new water in March. In April, Grain Rain again during the Qingming Festival, added bait and re-management, four will be put into feeding science, and there will be a good period of reproductive growth. The Beginning of Summer meets Lesser Fullness of Grain in May, clean water quality should not be slow, turtle disease should be prevented as early as possible in one year, and disinfection should be given.
2019-01-16 -
Diseases caused by vitamin deficiency in fish
1. Lack of vb1 can lead to loss of balance and blackening of body color in fish. 2. Vb2 deficiency can lead to lens opacity and fin rot in fish. It has been reported that albinism of Japanese flounder is related to the content of vb2. 3. Deficiency of vb6 can lead to neurological symptoms such as spasm and abnormal swimming in fish. It can also cause bending of the spine. It is also reported that when the balance of vb6 and protein is disrupted, the disease resistance of fish decreases. 4. Vc, also known as ascorbic acid, can cause fish when it is deficient.
2019-01-16 -
New techniques for artificial control of field snails in natural ponds
Field snail is not only a favorite fitness food, but also a bait for raising carnivorous fish. Due to overfishing, natural resources are decreasing day by day, and the prospect of developing field snail culture is promising. In recent years, our town has made great efforts to promote artificial imitation of natural ponds to raise field snails, that is, to create a good ecological environment in the ponds, to plant a small amount of water plants for field snails to perch and to avoid summer heat, and to place some branches and stones for field snails to live in different water layers. if possible, an aerator can be installed in the pond. Field snails live in such a living environment, the average output of 667 square meters can reach 800 kg ~ 1000 000.
2019-01-16 -
High benefit of silver carp culture led by science and technology
Adult fish (commercial fish on the market) culture is the destination and purpose of fish production. Recently, although special aquaculture has become "hot" all over the country, the traditional breeding and consumption of silver carp and bighead carp are still bulk currency, and the economic benefits are still considerable, with small investment, quick results, easy operation, many provenances, mature production and other advantages. it is very popular with fishermen. The key points of its production technology and technology are mainly the use of "water seed bait dense mixed wheel prevention and tube" intensive culture method. 1. The pond condition area is 0.3 to 1.4 hectares, and the bottom clay soil is the best.
2019-01-16 -
Processing of pipa shrimp
Pipa shrimp is also called shrimp crawler, learn the famous mouth shrimp aunt. The body is flat, the abdominal foot and tail fan are well developed, the carapace in the front of the body is very thin, the posterior part is thick, the frontal horn is not significant, the head and chest nail is wide and round, the first pair of feet are clamp-shaped, asymmetrical, androgynous, and there are two protuberances on the inner edge. Pipa shrimp is the main part-time catch in the fixed net of the Bohai Sea, with spring flood from April to July and autumn flood from October to November. Can be processed into frozen boiled pipa shrimp and frozen boiled pipa shrimp. 1. Processing of frozen boiled pipa shrimp 1. Quality conditions:
2019-01-16 -
Golden head turtle
Golden-headed turtles are known as Huangyuan box turtles, and other nicknames include yellow board turtles, snake turtles, broken plate turtles and so on. In China, it is mainly distributed in Anhui, Jiangsu, Zhejiang, Guangxi, Guangdong and other places. Foreign countries are mainly distributed in Japan. The main results are as follows: 1. The back armor of the golden head turtle is crimson, the center is high, and there are light yellow steep ribs, each shield has a fine concentric circle pattern, the back nail edge, shield and ventral surface are all yellow, so it has the name "yellow box turtle". The ventral nail is black and spotless. Light olive on the top of the head and on the sockets
2019-01-16 -
Identification of eel seedling varieties
At present, it is the Yangtze River eel seedling flood season, Jiangsu, Zhejiang, Anhui, Fujian, Shandong and other provinces and cities fishing vessels gathered in the Yangtze River Estuary fishing. Because the eel seedlings produced in the Yangtze River are "Japanese eels", it is better than "European eels" produced in France, "American eels" produced in the United States, "Australian eels" produced in Indonesia and Australia and "Filipino eels" produced in the Philippines. There is not only obvious difference in price, but also suitable for breeding in our country. In order to avoid being deceived by farmers in buying eel seedlings, the characteristics and identification methods of all kinds of eel seedlings are introduced as follows: first, the body color of Japanese eel seedlings is
2019-01-16