Aquaculture Lists
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How to restore the population potential and make use of Honey Source the main points of the management of honeybees in spring
How to restore the population potential and make use of Honey Source the main points of the management of honeybees in spring
2019-01-15 -
Prolapse of anus in layers affects laying how to treat prolapse of anus in laying hens
Prolapse of anus in layers affects laying how to treat prolapse of anus in laying hens
2019-01-15 -
What if a long journey leads to diarrhea in beef cattle?
What if a long journey leads to diarrhea in beef cattle?
2019-01-15 -
Control of pure yellow aphid wasp of brown scale in orange orchard
[morphological characteristics] the length of the female cicada is 0.92-1.18 mm, yellow and spotless. The posterior edge of the scutellum has dark brown stripes. There are short black stripes at the base of the forewing, dark brown on the ventral side of the antennal stalk, and dark smoke on the rest of the segments. Yellow feet. Compound eyes have fine hairs. The chest hair is thick and black, there are 4 hairs on the scutellum, the length of the forewing is 2.25 times of the width, and the spawning needle is 1.9-2.01 times the length of the tibia of the middle foot. The length of the male bee is 0.71-0.92 mm, the forewing is wider than the female, and the length is wide.
2019-01-15 -
Simple prevention and treatment of common diseases of pigeon
Pigeon plague: is caused by pigeon type I myxovirus, the mortality of the disease is high, showing neurological symptoms, shaking the head, often diarrhea. Medication is ineffective. Autopsy: there were bleeding spots in glandular stomach, intestinal mucosa bleeding and encephalitis. Prevention: ① uses peracetic acid 0.3% with pigeon spray disinfection, 0.5% concentration peracetic acid shed, environmental disinfection. Iodine type disinfectant can also be used. ② with pigeon type I Fu myxovirus inactivated vaccine prophylactic injection, chest muscle injection, injection should be slow rather than fast, each injection 0.5ml, generally in squab 30
2019-01-15 -
The reason why silkworms do not cocoon
1. Pathological factors. For example, purulent disease and malacia are easy to be infected before the upper cluster, which destroys the secretory function of silk glands of silkworm, or pathogens produce a large number of toxic metabolites in silkworm body, so that the nerves of silkworms are paralyzed and cannot be cocooned. 2, physiological factors. The first is the abnormality of the central silk gland, mainly because the feeding temperature is too high or too low, the leaf quality is too tender, the secretory gland is maladjusted, and the silk gland is abnormal, and the second is the abnormality of the anterior silk gland. it is mainly due to excessive exposure to bad gases such as gas, fishy gas, alcohol and so on.
2019-01-15 -
Snake pattern
Alias: red snake, spot snake, leopard snake, colorful swallow, discus, colorful fish, colorful fairy species: Sparidae water temperature: 20-28 ℃ hardness: less than 5dhPH value: 4.2-6.8 by the offspring of brown pine stone, occasionally there will be one or two pine stone with finer stripes, and then by Thailand and Penang
2019-01-15 -
A brief discussion on the artificial midwifery technique of raccoon dog delivery
The pregnancy and delivery of raccoon dogs has a certain seasonality, which is generally delivered from March to May. The artificial midwifery technology can be used to solve the general dystocia in the process of delivery and ensure the normal delivery of pregnant mother raccoon raccoons. The phenomenon of false death of young raccoon dogs can be dealt with in time. The author introduces the delivery and midwifery technology of raccoon dogs for reference. 1 Prenatal preparation of mother raccoon dogs 5 days before the due date, choose dry, warm and wind-free, sufficient light, quiet environment, do a good job of cage disinfection, cleaning and hygiene for delivery;
2019-01-15 -
Comprehensive control measures of bee disease in spring
The occurrence of bee disease is directly related to the technology of feeding and management. once it occurs, it is bound to affect the proliferation and economic benefits of the colony. Especially in the north of China, when the temperature difference between early and late spring is large, and the sources of honey and powder are scarce, the bee colony is most prone to bee disease. Therefore, in spring, we should take the measures of "prevention first and treatment as the supplement" to control the occurrence of bee disease. The selection and treatment of beekeeping sites the basic conditions for beekeepers to choose the site should be leeward and sunny and the terrain should be dry. There are more willow species in spring, and the shallow mountain areas or cutting sites dominated by Aceraceae plants can only be protected.
2019-01-15 -
Rearing method of male silkworm and big silkworm
1. New hybrid varieties of male silkworm (1) variety characters. Qiuhua × Ping 30, a new autumn male silkworm variety bred by the sericulture Research Institute of Zhejiang Academy of Agricultural Sciences, has the advantages of strong physique, uniform sleep of all ages and easy rearing. The number of ants per gram is about 2310, and the 5th instar passes through 6 days and 18 hours. After 22 and a half days, the two-day hatching rate is 49.34%, the silk length is about 1240 meters, the cocoon shape is oval, large and uniform, the cocoon color is white, and the cocoon shell rate and silk emergence rate are high. (2) key points of feeding and rearing techniques the photosensitivity of collecting ants can be properly compared with that of the general public.
2019-01-15 -
Collection and processing of scorpion venom
First, scorpion venom collection scorpion in the case of anger, out of defense or attack instinct, will discharge venom from the poison sac. The collection of scorpion venom is based on this principle. There are three common methods to collect scorpion venom: tail-cutting method, artificial stimulation method and electric stimulation method. (1) tail-cutting method: clip both sides of the fifth segment of the scorpion's rear abdomen with tweezers in one hand, cut off the tail segment of the scorpion with scissors in the other, break it into normal saline, leach the toxic part, concentrate the toxic liquid, put it into the container, and then make dry poison powder.
2019-01-15 -
Suggestions on strengthening the management of dog raising in urban and rural residents
1 to strengthen leadership and raise awareness that government departments at all levels should vigorously publicize the harmfulness of rabies to people's health and the medical knowledge of rabies prevention and control. The whole people should mobilize to control and eliminate rabies together. 2 to formulate unified laws and regulations for the prevention and control of rabies as soon as possible, dogs, as animals, should be managed by the supervision department of animal epidemic prevention in accordance with the provisions of the Animal epidemic Prevention Law, formulate implementation measures as soon as possible, clarify the main body of law enforcement, and other departments actively cooperate, the management of rabies will be accepted.
2019-01-15 -
Why do rabbits eat their own soft dung?
In the process of raising rabbits, we can see that the hard dung balls discharged by rabbits are formed by secondary digestion. Rabbits eat forage during the day, discharge soft feces at night or before dawn, and as soon as the soft feces are discharged, they immediately eat it, and through secondary digestion and absorption, the residue forms a hard dung ball out of the body. Rabbits eat their own soft feces at night, not because of the lack of certain nutrients in the body caused by dung-eating, but its normal physiological phenomenon. This instinct of rabbits has two great advantages: one is that it can make the rabbit house,
2019-01-15 -
How to choose the variety of rabbit and how to change it?
The main results are as follows: 1 the most common breeds of meat rabbits in China are New Zealand rabbit, California rabbit, Belgian rabbit and Chinese white rabbit. The basic requirements for meat rabbit breeds are fast growth in the early stage (70 ~ 80 days old body weight should be more than 2.5 kg), high feed efficiency, good meat production performance, and adult weight of about 4 kg. New Zealand rabbit is the most widely raised meat rabbit in the world. It originated in the United States and has three populations: new Zealand white rabbit, New Zealand red rabbit and New Zealand black rabbit. To the new west
2019-01-15 -
How to control the occurrence of silkworm disease
Through practical investigation, we found that in the process of silkworm rearing at home, silkworm farmers' lack of understanding of the harm of silkworm disease often led to the occurrence of silkworm disease, resulting in serious losses to production. Therefore, how to control the occurrence of silkworm disease is always the primary task in sericulture production. 1. The cause of silkworm disease is that sericulture is a high-density group rearing mode. There are many silkworm heads in a certain area, and silkworm eats mulberry and excreta in the same area. Once disinfection is negligent, or improper feeding and management, infectious silkworm disease is easy to occur, resulting in spread,
2019-01-15 -
Guanzhong Donkey
It is produced in the counties of the Weihe River Basin in Guanzhong Plain, Shaanxi Province, with Xianyang, Pingguan Wugong, Qianxian and Liquan as the central producing areas. This kind of donkey is tall, more than 1.30 meters tall, weighs 250-290 kilograms, has a strong physique, small and solid hooves, strong disease resistance, good heredity and strong persistence. The hair color of Guanzhong donkey is mainly black, but the rims of eyes, nose, mouth and lower abdomen are mostly white or gray, so it is called "pink nose, bright eyes and white belly". This is the characteristic of Guanzhong donkey, and it is also necessary for donkeys.
2019-01-15 -
General situation of research and utilization of propolis
Propolis is a kind of colloidal substance which is collected by bees from buds and bark of plants and mixed with glandular secretions such as tongue glands and wax glands of honeybees. Propolis is an opaque solid, brownish brown, reddish brown or grayish brown, sometimes with turquoise, a few nearly black. Natural fresh propolis has resin flavor, stickiness and plasticity. It begins to soften at 36 ℃, hardens and becomes brittle at 15 ℃, and melts into a viscous liquid at 60-70 ℃. Propolis is a kind of resin, which is easily soluble in ether, chloroform, acetone,
2019-01-15 -
Cut leaves to harvest and keep fresh: Fox tail Tianmen winter
[other middle name] Wu bamboo, Myers asparagus, Meibo's dense flower asparagus [family] Liliaceae asparagus belongs to South Africa, this species is a horticultural variety. [plant character] Tianmeng is a perennial herb. The plant height is about 60 cm. Rhizome short, stem erect. The leafy branches are fine needle-shaped. [cut leaf harvesting] the harvest site is the leaf-like technique of the fox tail Tianmeng. In the process of cultivation, the leafy branches that turn dark green and grow well can be cut off at any time as needed. The operation can be carried out throughout the day.
2019-01-15 -
Abnormal estrus in dogs
First, the estrus period of short estrus dogs is very short, it is not easy to observe, and the opportunity for mating is often missing. the reason may be that the follicles mature and ovulate quickly, which shortens the estrus period, or it may be that the follicles suddenly stop developing and atrophy, and stop secreting estrogen. the exact reason for short estrus is not clear. Second, intermittent estrus is common in malnourished bitches, estrus is intermittent, and the process of estrus lasts for a long time. Most of the reasons are that the follicles develop alternately due to the insufficient secretion of luteinizing hormone.
2019-01-15 -
Black brow snake
Black brow serpent: a large snake with a full length of 2000mm. The back of the head is yellowish green or brownish gray, there are obvious black stripes behind the eyes, and there are black trapezoid or butterfly markings in the front and middle of the body. After the middle part of the body, there are obvious black longitudinal bands on both sides to the tail end. Distribution: widely distributed in Tianjin, Shanghai, Shanxi, Zhejiang, Jiangsu, Anhui, Fujian, Taiwan, Jiangxi, Hubei, Hunan, Hainan, Guangxi, Chongqing, Sichuan, Guizhou, Yunnan, Xizang, Gansu and other places. Beijing area
2019-01-15