首页 锦鲤常见鱼病及鉴别(Common disease and identification of carp)

锦鲤常见鱼病及鉴别(Common disease and identification of carp)

举报
开通vip

锦鲤常见鱼病及鉴别(Common disease and identification of carp)锦鲤常见鱼病及鉴别(Common disease and identification of carp) 锦鲤常见鱼病及鉴别(Common disease and identification of carp) What diseases are the fish easy to catch in the four seasons? Spring (solar calendar 3-5 months), the temperature gradually picked up, generally betwee...

锦鲤常见鱼病及鉴别(Common disease and identification of carp)
锦鲤常见鱼病及鉴别(Common disease and identification of carp) 锦鲤常见鱼病及鉴别(Common disease and identification of carp) What diseases are the fish easy to catch in the four seasons? Spring (solar calendar 3-5 months), the temperature gradually picked up, generally between 10-20 degrees Celsius, water temperature environment is suitable for all kinds of pathogen growth and reproduction, especially in 4-5 months is the peak season of fish disease --- "barley yellow."". In early spring when the fish fry hatching, prone saprolegniasis; mainly from fry Trichodina, ichthyophthiriasis, Dactylogyrus, diplostomum, such as fish lice; spring fish are susceptible to microbial diseases, such as viral hemorrhagic disease, enteritis, gill rot disease, silver carp, print iodine Cryptosporidium disease. Summer (solar calendar 6-8 months), the temperature is generally between 26-28 degrees Celsius, the incidence of fish is slightly less than in spring, at this time the species gradually grow up, disease resistance has increased. Therefore, fish disease gradually reduced flagellates ciliates. According to the survey also remains of fish in spring summer microorganisms, with gill hemorrhage, red skin disease, enteritis, print. At this time, Lernaea disease more common parasites. In midsummer, high yield ponds are prone to flooding. Autumn (Gregorian calendar 9-10 months) the temperature gradually decreased, the temperature between 23-15 degrees Celsius, the temperature environment and spring are similar, especially 8-9 months is the peak season, "fish disease 100 dew heart", summer fingerlings mainly from Trichodina, ichthyophthiriasis, Dactylogyrus, copies of trematodes, lice and other diseases. The fall of larger sized fish susceptible to microbial diseases, such as viral hemorrhagic disease, enteritis and gill rot disease. Winter (around 12-2 months) low temperatures, generally between 3-6 degrees Celsius, fish disease rarely occurs. Winter is the fish stocking period, often due to pulling or transport scrapes fish, can also occur saprolegniasis; when the water temperature is high, may produce a.piscicola disease and ichthyophthiriasis disease; wintering fish in the water temperature below 10 degrees Celsius, the winter room temperature and water temperature due to the temperature difference is too large, causing the head at the top of frostbite fish during hypoxia. Spring and autumn and winter with temperature change of common disease at present preliminary summed up in 12, the parasitic disease mainly has 7 kinds: trichodiniasis, ichthyophthiriasis, Dactylogyrus, Lernaea disease, lice disease, silver iodine Cryptosporidium disease, the worm disease; there are 5 main types: hemorrhage (red skin disease microorganisms disease), enteritis, gill rot disease, disease, saprolegniasis print. As the saying goes: "fish is not the disease, rich". In the event of fish production, fish disease, light will affect fish growth and development, or will cause a part of the death of fish, so must pay attention to disease prevention and control work, and actively implement the "disease prevention early, early disease treatment guidelines. The naked eye identification of common disease profile Disease name, month of onset, gross identification of the main symptoms Lepidorthosis spring scale pocket water, scale up, the shape of the pineal, hand pressure, the water can be sprayed out scale follicle, sometimes actinosts of hyperemia, swelling of the abdomen. 5~8 month bonus muscle type and bleeding red fin shaped red operculum The red muscle type: lesions in fish muscles on both sides, the base and fin cavity, especially the anal fin base are also sometimes eye hyperemia, congestion, muscle punctate different levels of congestion; severe muscle was red. The red fin type: early red opercular fin hyperemia, operculum and abdomen, oral have different levels of congestion, severe fin surface and also hyperemia, intestinal inflammation The lesions of 5~7 are usually on both sides of the body and abdomen, often with inflammation, bleeding, scaling, congestion of fins and decay of the end. White headed white mouth disease, 5~7 month disease, slow movements of fish, body color is slightly black, white hair around the head and mouth, observed in the pool activities of diseased fish, its symptoms are very easy to identify. Print disease 5~7 months, lesions in both sides of the body, at the beginning of the disease, common round or oval, and bleeding lesions, as if marked. As the lesion grows, it develops deep, and in some cases the muscles of the lesion are often worn out. Bones or viscera can be seen White disease 5~7 months from the dorsal posterior to the end of the tail skin white, a white mist. When touching, the scales are rough and mucus free. The fish that is dying will show up, down and up. Furunculosis 5~7 lesion in the dorsal side, showing strong swollen and slightly raised, with the hand elasticity. Cut open the affected part, showing muscle congestion and decay. The saprolegniasis lesions produce many cottony hyphae, like clouds of white. 5~7 months mainly affect the fry and fingerling. When a large number of pathogen invasion, the body with the aid of a magnifying glass can be seen shining activities, fish disease symptom is: increased body surface mucus, sometimes with sludge, thin black, slowly floating in the water. Cryptobiasis Bodonidae Inclined pipe worm Cup borne worm disease Ichthyophthiriasis 5~7 months of severe infection, skin white spots, it is also called the "white spot disease". 5~7, parasitic on the scales and fins of various fins, can be observed with the naked eye, because of its bright red color, which is also called "red line worm disease"". A member of the larva of 5~7, having the gills, gills, mouths, and oral cavity of the body of the fish. It is observed by the naked eye and can be seen as a yellow triangular worm. The three generation of worm disease, 5~7 months, the surface of large amounts of mucus, with the naked eye to observe the location of lesions, you can see the fine worm in peristalsis. Lernaea parasitic disease 5~7 it is easy to see on the surface of the body, because the Lernaea with its head and chest part of a drill into the fish muscle tissue and scales outside the exposed part of the body is slender, so it is also called the disease as "bark disease". The infected fish disease Shi 5~7 months often exhibit restless or leaping out of the water, or mad swim in water, loss of appetite, the fish became thinner, serious and even death. Larger body, generally white, can be seen by the naked eye, but the worms often leave the host and seek new hosts at any time. Therefore, insects are sometimes not found on diseased fish. More than 5~9 months of the disease occurred in the acidic water. At the early stage of disease of fish skin mucus increased, a large number of white spots and small red spots, loss of appetite, late white connection overlap, as a Rice noodles over, "powder" off "hair" (director of saprolegniasis) or fester, Gill has lesions. Sick fish often stay on the surface of the water, not eating, motionless gills. Gill rot disease 7~9 month fish gill rot disease, severe gill and suprabranchial cartilage end exposed, often with sludge on the inner opercular lesion epidermis is often etched into a transparent window round or irregular (commonly known as the "open window"). Branchiomycosis 5~9 month sick fish gill is pale, sometimes spotty hyperemia or bleeding, often with fulminant rapid death, if not promptly take measures, there is danger in the short term The whole army was wiped out. Cryptobiasis fry stage due to body mass propagation and harassment, the disease of fish gill mucus, seriously affecting the fish breathe, the floating head is prolonged, serious disease of fish black, travel alone, floating. Wheel worm disease Trypanosomiasis Cup borne worm disease Dactylogyrusis 5~7 infection of Dactylogyrus, gill was swelling, opercular tension, increased mucus, gill was dark gray, some relatively large body, visible to the naked eye The 5~7 month end worm disease gill enlargement in gill pale, swollen in a lot of these parasitic worms, the naked eye visible, because the body back with a pair of slender white egg, shape a little like maggots, so the internal organs of gill maggot disease ". Enteritis 5~9 months anal swelling, severe often actinosts of congestion, abdominal erythema, cut open the stomach, often with ascites outflow, intestinal inflammation, serious when the entire bowel is red or purple. 5~7 months of the invasion of pathogens of intestinal coccidiosis, disease symptoms of fish gill is pale, loss of appetite, bowel wall in the naked eye can see many white cyst, intestinal tissue was severely damaged, causing inflammation hyperemia, even intestinal perforation. In the 5~9 months, some species develop only in the intestinal mucosa and form white spot like cysts. Some species invade the intestinal mucosa outside the mucosa, A large number of cysts can also be seen through the intestinal wall. This situation is more common in the two year old carp and crucian carp. Crazy disease in winter and spring the main infection of silver carp and Bighead, the invasion of pathogens of fish brain, normal physiological activities damage the nervous system, the ill fish in the water is mad swim around, twitching round, a sink to the bottom, a floating in the water, the fish disease generally thin, yellow head, tail upturned, microvascular bleeding inside the brain and liver in general is purple, sometimes seroperitoneum. 5~9 disease mainly affects the fry and fingerling. Because the fish intestine is blocked by the fluke, it affects the normal feeding and digestion of the fry. The diseased fish body is black and the flow is slow, and the group floats on the leeward surface. It is commonly called "closed disease"". The intestinal tract of the fry is carefully observed with the naked eye. Paragonimiasis 5~9 months after the larvae were infected with cercariae, initially on the surface of the water up and down, moving rapidly or struggling, and then appeared belly upside down, head down; a few minutes or ten minutes after the death. The diseased fish is congested and partially bent. There is also a part of fish disease because of a small number of cercariae infected, but the cercaria entering the eye lens opacity is milky white, it is also called the "cataract". At this stage, fish can continue to grow except when they are blind or out of sight. Bothriocephalus acheilognathi infection disease 5~9 month grass carp for less than 10 cm. After suffering from the disease, the fish nutrition is consumed, affecting growth and development, so that the disease gradually emaciated fish die. Often in the autumn wind, fish, appetite decreased, a large number of deaths. Cut open the stomach, the foregut rear corner, visible many thin like white worm body. Double cestodiasis 5~9 disease fish back from the anus can be thin, white strip body extrusion with handle gently pressing the abdomen cut open the stomach worms in the abdominal wound visible. Abdominal disease fish parasites in fish 5~9 months, carefully observe the pectoral fin base fish bean size has a hole from the hole position in the parts of the fins cut open the stomach, abdominal cavity, with the shape of a pair of white wood louse. The disease fish, thin body, slow growth. Other horse racing disease 5~6 months occurs during fry and fingerling cultivation. The fish around the pond cluster mad swim, long time not only, like "happy". Bubble disease 5~6 months, there are bubbles in the intestines, or the body surface, fins with more bubbles, so that fish floating on the water, can not sink. Anemia 10~3 opah body shriveled, large head and a small tail, back like the blade. Body 6~7 opah body bending, sometimes the skull and jaw and fins are deformed.
本文档为【锦鲤常见鱼病及鉴别(Common disease and identification of carp)】,请使用软件OFFICE或WPS软件打开。作品中的文字与图均可以修改和编辑, 图片更改请在作品中右键图片并更换,文字修改请直接点击文字进行修改,也可以新增和删除文档中的内容。
该文档来自用户分享,如有侵权行为请发邮件ishare@vip.sina.com联系网站客服,我们会及时删除。
[版权声明] 本站所有资料为用户分享产生,若发现您的权利被侵害,请联系客服邮件isharekefu@iask.cn,我们尽快处理。
本作品所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用。
网站提供的党政主题相关内容(国旗、国徽、党徽..)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
下载需要: 免费 已有0 人下载
最新资料
资料动态
专题动态
is_954223
暂无简介~
格式:doc
大小:34KB
软件:Word
页数:0
分类:
上传时间:2018-02-18
浏览量:12