Prevention and treatment of common diseases of captive sheep in summer

Infectious conjunctival keratitis

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Commonly known as "pinkeye disease", is an acute infectious disease of ruminants caused by Haemophilus and Rickettsia. The damage is limited to the eyes, causing obvious inflammatory changes in the conjunctiva and cornea, fear of tears, conjunctival redness and hyperemia, mucous or purulent secretions from the corners of the eyes, and a few form corneal nebula, leukoplakia or blindness. The disease often occurs in the summer and autumn high temperature season with high temperature, mosquitoes and flies, and the environment with poor air circulation and high ammonia concentration.

[prevention]

1. The sick sheep are quarantined and the enclosure is cleaned and disinfected in time.

Wash your eyes with 2.2-5% boric acid water or light salt water or 0.01% furacilin. After drying, you can choose eye ointment such as erythromycin, chloramphenicol, tetracycline, 2% yellow mercury or 2% cortisone.

3. You can also use penicillin or chloramphenicol plus dexamethasone 2ml and 0.1% epinephrine 1ml for 2-3 times a day.

4. Patients with corneal opacity or cataract can be injected with Diyun Powder, or 500000 units of penicillin plus whole blood 10ml of diseased sheep, subcutaneously injected into the eyelid, or 500000 units of streptomycin solution 5ml injected into the supraorbital hole, once every two days.

Sheep infectious abscess

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Commonly known as "sheep mouth sore", is caused by the virus, characterized by papules, abscesses, ulcers and verrucous scabs formed in the skin and mucous membranes of lips and other places, which are mainly spread by enclosures, utensils or skin abrasions, and can be harmful to sheep for many years.

[prevention]

1. To prevent epidemic regularly, 0.2ml was injected into the oral mucosa of each sheep with oral ulcer attenuated cell freeze-dried vaccine in March or September every year.

two。 Use less coarse and hard feed, strictly prevent traumatic infection, isolate sick sheep in time, and disinfect the enclosure and utensils with 2% fire alkali or 10% lime milk or 20% hot plant ash water.

3. Rinse the wound with 0.1-0.2% potassium permanganate solution, and then apply 2% gentian purple, iodoglycerin, 5% oxytetracycline ointment or penicillin furacilin ointment, 1-2 times a day.

Lamb dysentery

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The disease mainly harms newborn lambs within 7 days of age, which is acute toxemia caused by Clostridium perfringens. In addition, salmonella, Escherichia coli and streptococcus can also cause disease, characterized by persistent dysentery, commonly known as "diarrhea", "white dysentery" and "bleeding", which can often cause a large number of lambs to die. The disease is easy to be infected when the climate changes suddenly, hunger and satiety are uneven, and umbilical cord is injured.

[prevention]

1. To strengthen epidemic prevention, pregnant ewes were injected with lamb dysentery formaldehyde vaccine 2-3ml 20-30 days and 10-20 days before parturition. The injection site was subcutaneously on the inside of both hind legs, so that newborn lambs could be passively immunized.

(2) the diseased lambs were given 0.3 grams of oxytetracycline and 0.3 grams of pepsin twice a day.

3. Sulfonamidine 0.5 g, tannic acid protein, bismuth subnitrite, baking soda 0.2 g each, once, 3 times a day.

4. Chloramphenicol per kilogram body weight 0.02-0.03 grams, intramuscular injection 2 or 3 times a day.

5. Dehydrated lambs, rehydration 1-2 times a day, oral rehydration salt or intravenous injection of 5% glucose saline 20-100ml.

Sheep enterotoxemia

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The disease is caused by the proliferation of type D Clostridium welchii in sheep intestines and the production of toxins. The kidney is easy to soften after death, so it is also called "soft nephropathy". It is also known as "fast epidemic" because of its multiple acute attacks and sudden death. most of them occur in sheep with good body condition and under two years old, showing sporadic. Rainy season, sudden climate change, overeating tender grass and concentrate, lack of exercise and so on are all inducements. During the onset of the disease, they either lie or run and jump, gnash their teeth, fall to the ground on their sides, twitch and spasm of their limbs, roll left and right, bend their heads and necks backward, breathe quickly, foam from mouth and nose, sometimes groan painfully, and die within 1-2 hours.

[prevention]

1. Twice a year spring and autumn epidemic prevention, subcutaneous or intramuscular injection of sheep quadruple 5ml (fast epidemic, sudden onset, enterotoxemia, lamb dysentery).

two。 Avoid overeating green and succulent feed and concentrate and exercise properly.

3. If the course of the disease is longer (more than 2 hours), you can take 10-20 grams of sulfonamidine or inject immune serum.

4. Chloramphenicol 0.5-0.7 g was injected intramuscularly, 3 times a day.

5. 1.6 million units of penicillin and 500mg of streptomycin were injected intramuscularly, 4 times a day.

Sheep hoof rot disease

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A sick sheep is lame, likes to lie down and is afraid of standing, and it is difficult to walk. There are often ulcerated surfaces between the hooves, and when the hoof shells are rotten and deformed, the sick sheep can not afford to lie on the ground.

[prevention]

Sick sheep should trim their hooves in time, especially in the humid and hot season. If the hoof fork is rotten, it can be washed with 5% iodine tincture; if the soft tissue of the hoof is rotten, it should be thoroughly expanded and cleaned, and then packed with 5% copper sulfate powder in the bottom hole or hole of the hoof, and then coated with pine distillate oil.