In the process of raising pigs, pig ears and purple skin are often encountered. Here are the main diseases and symptoms of common skin and purple skin and ears and the rational use of drugs.

It is distributed, mainly piglets and framed pigs. The body temperature of the sick pig is below 41 ℃, diarrhea, gray and black feces, purple spots on the skin such as ear root and abdomen.

Subcutaneous autopsy, extensive muscle bleeding, chronic cases of large intestine surface fibrinous necrotizing enteritis and scattered diffuse pseudomembranes.

Florfenicol powder is preferred for treatment, and it can be administered for whole group prevention.

The body temperature of the sick pig is about 41 ℃, the visible mucosa has needle-like bleeding, the longer course of anemia, the visible mucosa is pale, the skin is pale, the needle-like bleeding point, the lymph node is enlarged, there is marble-like bleeding, the throat and other mucous membranes and kidneys have needle-like bleeding point. Prevention and control, the whole group of emergency injection of swine fever single joint seedlings.

It is sporadic, with body temperature above 41 ℃, skin with irregular pressure fading erythema or rhombic erythema, and diarrhea in the later period. The splenomegaly, kidney enlargement and hemorrhage, the surface was dark red, lymph node enlargement and hemorrhage.

Treatment is effective with penicillin or cephalosporin antibiotics.

Disseminated, body temperature above 41 ℃, skin under the abdomen, limbs, ears and other skin have purple spots, sick pigs scream, convulsions, circling and other neurological symptoms, chronic pigs have suppurative arthritis, endocarditis and suppurative lymphadenitis, the course of acute cases is 2 days. Dissection of poor blood coagulation, lymph node hemorrhage, myocardial hemorrhage.

Treatment with penicillins, cephalosporins, sulfamonomethoxine sodium and other antibiotics effective.

It is sporadic, which mostly occurs after the stress of climate mutation and long-distance transportation. The body temperature of sick pigs is 41~42 ℃, and the skin has purple spots, especially the throat and neck are red and swollen, hard, dyspnea, cough and purulent nasal discharge of chronic pigs. Dissection of laryngeal head and its surrounding, tissue edema, early bleeding point, late lobar pneumonia.

Treatment with cephalosporins, sulfonamides effective.

It is sporadic, often concurrent with or secondary to swine flu. The body temperature of the sick pig is above 40 ℃, cough, skin redness, difficulty breathing in the later period, and the skin of the nose, ears and hindquarters is purple and red. The lungs on both sides were purplish red, the interstitium was filled with blood sample liquid, the surface was covered with cellulose, the serosa was red, the chest wall was adhered, and the pleural effusion was longer.

Prevention and treatment, with cephalosporins, florfenicol, sulfonamide antibiotics effective.

A regional epidemic. The body temperature of the sick pig is above 42 ℃, the skin is red at the beginning of the disease, the skin of the middle ear, limbs and tail has purple spots, and the ear is necrotic at the later stage. Urine was pale, hemoglobinuria. Microscopic examination of red blood cell deformation, rupture.

Treatment with oxytetracycline hydrochloride, doxycycline and other injections, prevention when the whole group of oxytetracycline hydrochloride soluble powder or kexi effective.

veterinary drug name]

Common Name: Oxytetracycline Hydrochloride Soluble Powder

 英文名称：Oxytetracycline Hydrochloride Soluble Powder

 汉语拼音：Yansuan Tumeisu Kerongxingfen

main ingredient]Oxytetracycline Hydrochloride

character]This product is light yellow powder.

pharmacological action]Tetracycline antibiotics. Oxytetracycline binds reversibly to the receptor on the 30S subunit of the bacterial ribosome, interferes with the formation of ribosome complexes between tRNA and mRNA, prevents the extension of the peptide chain and inhibits protein synthesis, so that the growth and reproduction of bacteria is rapidly inhibited. Oxytetracycline has an inhibitory effect on both gram-positive and gram-negative bacteria. Bacteria were cross-resistant to oxytetracycline and doxycycline.

role and use]Tetracycline antibiotics. It is used to treat infectious diseases caused by sensitive Escherichia coli, Salmonella, Pasteuella and Mycoplasma in pigs and chickens.

Usage and dosage]With this product. Mixed drink: 1~2g pig per 1L of water; Chicken 1.5~2.5g. Use for 3 to 5 days.

veterinary drug name]

Common Name: Doxycycline Hydrochloride Soluble Powder

commodity name: kexi

main ingredient]Doxycycline Hydrochloride

character]This product is light yellow or yellow crystalline powder.

pharmacological action]Tetracycline antibiotics. By reversibly binding to the receptor on the 30S subunit of the bacterial ribosome, doxycycline interferes with the formation of ribosomal complexes between tRNA and mRNA, prevents the extension of the peptide chain and inhibits protein synthesis, so that the growth and reproduction of bacteria is rapidly inhibited. Doxycycline inhibits both gram-positive and gram-negative bacteria. Bacteria were cross-resistant to doxycycline and oxytetracycline.

Oral absorption is rapid, less affected by food, high bioavailability, strong tissue penetration, wide distribution, effective blood concentration to maintain a long time. The protein binding rate in pigs was 93%.

role and use]Tetracycline antibiotics. For the treatment of pigs, chickens, gram-positive bacteria, negative bacteria caused by Escherichia coli disease, salmonellosis, pasteurelloiella disease and respiratory diseases caused by mycoplasma.

Usage and dosage]With this product. Mixed drink: 500g of this product is mixed with 2000kg of water for 3~5 days.