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Bovine eyeworm disease must be treated promptly during the high-temperature period in summer and autumn

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Symptoms: In the early stage, there is conjunctival redness, congestion, swelling, inflammation, and tearing, with serous or purulent discharge. In the later stage, it gradually worsens and increases, the eyelids swell, and the cornea becomes cloudy or develops ulcers or perforation. Sick cattle have reduced appetite, elevated body temperature, restlessness, shake their heads and rub their eyes, and are photophobic. In severe cases, it can cause blindness in one or both eyes, and cows produce less milk. Prevention: Maintain good environmental sanitation in the cattle shed, ensure the pen is dry, remove filth and dispose of it properly, and do a good job of fly control. Feeding management should also be strengthened, nutrition increased, and the cattle's eyes protected from injury

Symptoms: In the early stage, there is conjunctival redness, congestion, swelling, inflammation, and tearing, with serous or purulent discharge. In the later stage, it gradually worsens and increases, the eyelids swell, and the cornea becomes cloudy or develops ulcers or perforation. Sick cattle have reduced appetite, elevated body temperature, restlessness, shake their heads and rub their eyes, and are photophobic. In severe cases, it can cause blindness in one or both eyes, and cows produce less milk.

Prevention: Maintain good environmental sanitation in the cattle shed, ensure the pen is dry, remove filth and dispose of it properly, and do a good job of fly control. Feeding management should also be strengthened, nutrition increased, and the cattle's eyes protected from injury.

Treatment: The principles should be expelling parasites and improving vision, and dispersing blood stasis and reducing swelling. Any of the following drugs may be selected to flush or apply drops to the bovine conjunctival sac and third eyelid (nictitating membrane). Flush the bovine eye several times with a 2%-3% boric acid aqueous solution; flush the bovine eye several times with a 0.5% lysol solution; instill 2 milliliters of 10% sodium chloride solution into the bovine conjunctival sac; apply 2-3 drops of 0.5%-1% trichlorfon aqueous solution to the eye; instill 3-4 drops of 5% colloidal eye drop solution into the conjunctival sac, once in the morning and once in the evening; flush 2-3 times with 0.2% haiqunsheng; have the sick cattle take tetramisole orally at 15 milligrams per kilogram of body weight for 2 consecutive days; take 12 grams of Coptis chinensis, 30 grams of Phellodendron amurense, 30 grams of Scutellaria baicalensis, 12 grams of Ligusticum chuanxiong, 12 grams of Mentha haplocalyx, 30 grams of Forsythia suspensa, 30 grams of yellow powder, 24 grams of cicada slough, and 30 grams of Equisetum debile, grind them together into a fine powder, mix with boiling water, and administer by gavage all at once.

After the first flushing or eye drop application with the above drugs, most of the sucking nematodes in the bovine conjunctival sac can generally be killed, but some still remain in the lacrimal duct. The drug needs to be used once every 5-6 days for 2-3 consecutive times.

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