How to use trichlorfon

Trichlorfon is a broad-spectrum anthelmintic drug used in veterinary medicine for the treatment of various nematode diseases of cattle, horses, pigs and sheep, trematode sphagnum, swine mites, ascariasis, equine tsutsugamushi, etc. Extracorporeal parasitic diseases such as bovine fly maggots, sheep snouts, and body lice and mites. Trichlorfon is low in price and easy to use, but it can easily cause poisoning if not used properly.

How to use trichlorfon

Cattle reacts to trichlorfon. It is currently used less domestically. Horses are orally administered with 2% solution per kilogram of body weight of 30 mg to 50 mg. Pigs are given a dose of 0.05% to 0.09% of trichlorfon solution per kilogram of body weight of 80 mg to 100 mg, and the effect is good. Goats are slightly more sensitive than sheep. Fine-wool sheep are slightly more sensitive than native sheep. Goats are 50 mg to 70 mg per kilogram of body weight, and sheep are 80 mg to 100 mg per kilogram of body weight, and they are orally administered with 2% aqueous solution.

Trichlorfon has a good effect on killing ectoparasites of livestock and poultry. For sheep larvae, it can be taken orally in a 2% aqueous solution of 50 mg to 70 mg per kilogram of body weight, or 20 ml with 2% trichlorfon. ~60 ml, sprayed into the sheep's nasal cavity with a syringe. The repelling of the leather fly maggot can be rubbed back with 2% trichlorfon solution, 300 ml ~ 500 ml each time. For the treatment of sputum, the topical rubbing with 1%~3% trichlorfon solution is better. It is also possible to treat chicken cockroaches with 0.1% to 0.15% of trichlorfon solution. In addition, spraying 0.1%~0.15% of trichlorfon solution can kill cockroaches, cockroaches, cockroaches, mosquitoes, flies and so on.

Taboo use of trichlorfon

Avoid excessive usage

Excessive use of trichlorfon can cause poisoning. Whether it is administered internally or externally, it is important to pay attention to the dosage. When applying local rubbing, it is best not to exceed 1/3 of the body surface area to prevent poisoning.

Avoid compatibility with alkaline drugs

When trichlorfon comes into contact with alkaline drugs, it turns into dichlorvos, which greatly increases its toxicity.

Avoid use in poultry, use caution in cattle and sheep

Poultry is very sensitive to trichlorfon and is highly susceptible to poisoning and is not suitable for application. Cattle are also sensitive to trichlorfon and are currently used less frequently in China. Goats and fine-wool sheep are slightly sensitive to trichlorfon. When applied, control the dosage to prevent poisoning.

Source: China Animal Husbandry and Veterinary Newspaper

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