Organophosphorus pesticide poisoning in farmed wild geese

Wild geese are poisoned by accidentally eating vegetables, grasses or pond water contaminated with organophosphorus pesticides.

[symptoms] most of them are acute poisoning. Acute almost no obvious symptoms, about 10 minutes after feeding, suddenly flapping wings, jumping, convulsive death. Those with a longer course of disease show mental uneasiness, dyspnea, inability to cry, unstable standing, tears, obvious constriction of pupils, salivation and dilated nose, and frequently shake the head and throw out the feed of the eaten people from the mouth; muscle tremors, dysentery, and finally convulsive death. I can bear some of it. There are also cases of chronic poisoning. Sick geese refuse to eat, but drink water and crawl on the ground; pull water like white dung, inverted will spit out black water from the mouth. On the other hand, the laying rate of laying geese decreased. The course of the disease is longer, and some die in about a week.

[pathological examination] in acute death, the liver and kidney were enlarged and brittle, the gastrointestinal mucosa had hemorrhagic inflammation, exfoliation, ulcer and other changes, and the gastrointestinal contents smelled of garlic. Chronic death can be seen muscle stomach cuticular membrane blackening, like bark-like, duodenal mucosa congestion, bleeding, liver anemia, white necrotic spots on the surface, slight bleeding of coronal fat. Egg yolk water sample, egg deformation.

[diagnosis] it can be diagnosed mainly according to the history of medication and pathological examination.

[treatment] once organophosphorus poisoning occurs, emergency treatment should be timely. Stop using suspicious feed and drinking water immediately; cut open the inflated part of the esophagus or squeeze it upward to extrude the contents, and drink 0.01% potassium permanganate (prohibited by 1,605 poisoning) or 2.5% baking soda (prohibited by trichlorfon). Rapid use of atropine symptomatic treatment, each goose subcutaneous injection of 0.5 mg, chicks reduced, 15 minutes later again, and then according to the need (to see whether the pupil dilated, salivation stopped) can be oral atropine every 30 minutes, one tablet at a time, soluble in water; if possible, you can also use pralidoxime (0.2 ~ 0.5 ml / mouse, intravenous injection) or pralidoxime chloride treatment.

[prevention] organophosphorus pesticides should be strictly managed and should not graze in areas where organophosphorus pesticides have just been used (generally, the interval should be more than 1: 2 weeks). It is best not to use organophosphorus pesticides to kill mites, flies and so on.