Color diagnosis and Prevention techniques of cattle and Sheep

In the long-term animal husbandry and veterinary production practice, we have summed up nearly 30 years of experience and relevant reports, according to watching the color of cattle and sheep, we can diagnose the disease quite accurately, and adopt effective new technology to prevent and cure it at the same time. A good therapeutic effect can be obtained.

1 "cylinder color" diagnosis

1.1 "pinkeye disease" of cattle and sheep

The pathogen of the disease is Haemophilus or conjunctival rickettsia, which can be infected in cattle and sheep.

1.1.1 symptoms

Simultaneous onset of both eyes, eyelid swelling, fear of tears: conjunctival inflammation, diffuse flushing; corneal ulcer, no systemic symptoms, often occur in large groups, showing an endemic epidemic.

1.1.2 treatment

Rinse the affected eyes with 2% boric acid aqueous solution, then use chloramphenicol eye drops, 3-5 drops per eye; boil water with cypress branches and alum, wash eyes after cooling.

1.1.3 Prevention

After a few cases, they should be quarantined and treated immediately; do a good job in the hygiene of stable houses and eliminate mosquitoes and flies.

1.2 "Red nose Disease" of cattle

There are 5 types of infectious bovine rhinotracheitis, namely respiratory type, genital type, conjunctival type, abortion type and encephalitis type. the pathogen is bovine herpesvirus type Ⅰ, among which respiratory type is also known as red nose disease.

1.2.1 symptoms

Sudden onset, mental depression, reduced food intake, stop ruminating, fever to more than 40 ℃. Fast breathing, nasal discharge of a large number of purulent snot, nasal mucosa ulcers, high congestion, the appearance of fiery red, hence the name "red nose disease".

1.2.2 treatment

No specific therapeutic drugs, focus on prevention, in order to prevent secondary infection, antibiotics can be used; in order to alleviate symptoms, symptomatic treatment can be carried out.

1.2.3 Prevention

Vaccination with attenuated vaccine has a better preventive effect. Since maternal antibodies in colostrum can last for 4 months, calves should be immunized at the age of 5 months.

1.3 "red hoof disease" of sheep

Sheep red hoof disease is a hereditary disease, which mainly occurs in Scottish black-faced lambs and their first generation hybrids.

1.3.1 symptoms

High degree of lameness, hoof shell easy to fall off, after falling off to reveal bright red hoof leaves, hence the name red hoof disease; some diseased sheep also have corneal ulcer disease.

1.3.2 treatment

There is no specific treatment.

1.3.3 Prevention

As there are no domestic sheep breeds prone to the disease, it is the best way to prevent foreign sheep breeds that are prone to the disease.

2 "blue" diagnosis

2.1 Infectious blue eye disease of cattle and sheep

2.1.1 symptoms

In both eyes, the cornea was grayish blue, the blindness rate of cattle was 3.1%, and the blindness rate of sheep was 15.3%.

2.1.2 treatment

Gentamicin sulfate 200000 IU, dexamethasone 20mg, atropine 200mg, ribavirin 20mg, distilled water 20mL were dissolved as eye drops. Eye drops were given 6 times a day with 3-5 drops per eye, and 4 times a day with 2-3 drops each time after the symptoms were relieved. For patients with corneal ulcer, use vitamin B2 instead of dexamethasone as eye drops, the usage is the same as before.

2.2 Blue tongue disease of cattle and sheep

2.2.1 Bull bluetongue

The disease is caused by bovine bluetongue virus and Culicoides is the main transmission vector.

2.2.1.1 symptoms

The initial fever was 40.5-41.5 ℃, missed for 2-3 days, the tongue was swollen blue-purple, oral mucous membrane swelling, ulcer: a lot of salivation, eating grass, ruminating slowly and carefully.

2.2.1.2 treatment

0.1% potassium permanganate solution, rinse the mouth; smear iodine glycerin or purple solution on the mouth ulcer; feed fresh and soft grass.

2.2.1.3 Prevention

Completely eliminate blood-sucking flying insects, especially Culicoides, in summer; fill potholes with stagnant water; remove ground weeds; and barn houses are disinfected with 1%-2% sodium hydroxide solution.

2.2.2 Sheep bluetongue

The pathogen and symptoms of sheep bluetongue and bovine bluetongue are basically the same, but sheep have other symptoms of gastroenteritis, frequent diarrhea and blood in feces. In addition, sheep suffer from the disease, pregnant sheep can be transmitted to the fetus through the placenta, and rams can be transmitted to ewes through semen. The treatment of the disease not only refers to the treatment of cattle, but also needs to treat digestive tract inflammation, such as gentamicin sulfate 1.5mg/kg, intramuscular injection, twice a day. Prevention is the same as cow disease.

3 "black" diagnosis

Black plague of sheep, also known as infectious necrotizing hepatitis, is caused by Clostridium norvegicum type B.

3.1 symptoms

Sheep, especially obese sheep at the age of 2 ~ 4 months, have more morbidity, sudden onset, quick death and rapid spread. A few subacute patients had depression of spirit, loss of appetite and cessation of ruminating: dyspnea, body temperature rose to 41 ℃, and died within 1-2 days. After death, due to the high congestion of blood vessels on the body surface, the skin of the sheep was black.

3.2 treatment

Anti-Clostridium norvegicum serum was injected intramuscularly with 2~4mL per sheep.

3.3 Prevention

3.3.1 5mL per sheep (black plague, quick plague, sudden gangrene, enterotoxemia, lamb dysentery), no matter big or small, injected subcutaneously or intramuscularly once a year.

3.3.2 dead sheep were burned or buried deeply.

3.3.3 the sheep house was disinfected with 20% bleach solution.

3.3.4 do not graze by low-lying water.