Fish disease microscope

With the current large-scale farming industry,the investment of farmers is getting bigger and bigger,and the risks are getting bigger and bigger,so the method of scientific farming is indispensable.For fish farmers,if a fish develops a disease,it will have a wide-ranging contagious effect,which will eventually lead to illness or death.The loss to the farmer will be enormous.In order to prevent fish disease,early prevention must be done.In addition to visual observation,a more effective method is to use microscopic microscopy to determine what bacteria or virus is infected by the fish to prevent the disease.
 Inspection Method:
1.Body surface observation of diseased fish.The mouth, eyes, scales,fins and other parts of the diseased fish are carefully inspected in order.Some obvious pathogens such as water mold, nematode,fish gill and spearhead can be seen by the naked eye.Observe whether the oral and body surface of the diseased fish is bleeding,whether the body surface mucus is increased, whether the anus is red and swollen,whether the scales are shed or vertical scales.Check whether the individual fins of the diseased fish are intact,whether there are pustules or flocculent attachments in the lesions (if necessary,scrape them for examination),whether the eyes are prominent,and whether the eyes are turbid.
2, check. First,put the fish naturally flat,see if the lid is open,then open the lid to check whether the sputum is mucus,congestion,rot or mildew.Finally,cut the lid with scissors and cut a part of the silk under the microscope.Observe.
3. Anatomical examination.To check the body of the fish, first dissect the diseased fish (pictured),cut it from the anus at the side of the body surface with scissors,open the abdominal cavity,remove all the internal organs, separate the internal organs, and check one by one. Observe the visceral abnormalities,foreign bodies or parasites,whether there is ascites;cut the intestines to see if the intestines are red and swollen,whether there are feed or parasites in the intestines;observe whether the organs are normal,whether there is bleeding,discoloration or hardening,hypertrophy or shrinkage.
4. Microscope examination.According to the inspection of diseased fish,sampling at key parts can visually and quickly observe the diseased organs and parasites,and has the characteristics of high diagnosis rate,quick and convenient.Generally,the areas requiring microscopic examination include mucus on the surface,bracts,and intestinal mucus.Some parasites may be observed on the surface mucus,such as:worms,ciliates,small melons,fish worms,etc.;sputum may observe redness and swelling,increased mucus,parasitic parasites,common axillary parasites Many,such as:worms,ringworms,ciliates,small melons,third-generation insects, tube worms;aphids,echinoderms,and myxospores can be observed in the intestines.During the test,keep the sample fresh and easy to observe.You can drip in the proper amount of normal saline.The examination should be focused and rapid.The longer the time, the less likely it is to find the pathogen.
(1) Mucus:Check in the mucus of the fish body: pathogens that are invisible to the naked eye,such as the cryptic whipworm,the filaria,the worm,the sporozoite and the small worm,and the trematode.
(2) Gill:check the pathogens,bacteria or parasites of various pathogens.Protozoa such as rotten cockroach,cockroach, cryptoside,myxospores,microsporidia,worms,worms,worms,small melons,half-browed worms,tongue worms,capillaris,etc. Three-generation insects,double-worms and other monosemimonas,clostridium sputum,mollusk larvae and mites.
(3) Gastrointestinal:Examination of parasites such as flagellates,amoeba,myxospores,microsporidia,coccidia and other protozoa as well as parasitic worms,nematodes,echinoderms,mites,trematodes,mites,Nematodes and echinoderms,six flagellates,amoeba,and intestinal worms.
(4) Liver A small white spot of cysts formed by cysts or worms,myxospores,microsporidia or coccidia in the liver.