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Sheep Infectious Mastitis

Infectious mastitis of sheep (mastitis infectiosa ovium) is an acute contagious disease; manifested by gangrenous lesions of the mammary gland and severe intoxication of the body.

Etiology. The main causative agents of the disease are pathogenic staphylococcus - Staphylococcus sureus ovinus and Pasteurells haemelytica of biotypes A and T. Mastitis in sheep can also be caused by other microorganisms and their associations: Escherichia, Proteus, Clostridia, etc. Disease caused by pathogenic staphylococcus aureus, abscessed mastitis or flakes and pus. When opening abscesses in the lumen of the milk ducts, the amount of pus in secret increases.

Epizootological data. The source of the disease is sick animals. In lambs infected from sick mothers, pneumonia develops: body temperature rises to 41.5 ° C, the pulse increases, breathing becomes superficial. Appetite and chewing gum disappear, diarrhea, a wet cough, mucopurulent discharge from the nose appear. Lambs, as a rule, die, and survivors become microcarriers.

The course, symptoms and pathological changes. A sharp increase in the affected half of the mammary gland is noted (damage to both halves is rare). It is firm to the touch, the skin is tense and has a cyanotic-crimson color; subcutaneous tissue is swollen and gelatinously infiltrated. On a section the mammary gland is easily soiled, dark red; a muddy, gray-red ichorous odor mass flows from the surface of the section. Lobules of the gland are enlarged, swollen and often dark red. The interstitial tissue is thickened. The alternation of sharply hyperemic lobules with lighter areas during swelling of the interlobular connective tissue gives the cut surface a motley color that resembles a marble pattern. In advanced cases, the glandular tissue has necrotic areas with a breakdown and proliferation of connective tissue in the section.

In cases of complication of the disease with a purulent-putrefactive infection in the affected gland, encapsulated abscesses or putrefactive tissue disintegration with the involvement of the skin of the udder and the formation of external fistulas are detected. Indented lymph nodes are sharply enlarged, hyperemic, juicy, pink or red in section. The clay-colored liver, on the section is rather dry, often necrotic foci up to the size of a pea are found in it. The spleen is usually enlarged, its capsule is tense, the pulp is dark red. The kidneys are strongly hyperemic, regenerated, juicy in the section, and often have hemorrhages under the capsule.

With mastitis, gangrenous metritis and peritonitis, acute catarrh of the stomach and intestines with hemorrhages in the mucous membranes are sometimes observed. The lungs are strongly hyperemic; in most cases, they find dense, yellowish and grayish-white foci, ho from a pinhead to a pea. Lymph nodes are enlarged and hyperemic.

The diagnosis is made on the basis of epizootological data, clinical signs, pathological changes and studies of the secretion of the udder and material.

The study of sheep’s milk to identify the initial forms of the disease is carried out by express methods directly in the flock during milking.
For this purpose, samples with mastidine, dimastine or whiteatin are used, and a sedimentation test is also set.

To determine the pathogen and its resistance to antibiotics, laboratory studies of the secretion of the udder and material in the event of the death of the animal are carried out. A sample of the secretion of the mammary gland is taken sterile in test tubes. From the dead animals send pieces of the affected lobe of the udder, cut out with healthy tissue, which are placed in a 30% glycerol solution (sterile).

Treatment. Sick sheep are isolated, provide complete feeding. If the first signs of mastitis are detected, sick sheep are injected intramuscularly with penicillin 100,000-200,000 units 3 times a day and norsulfazole 1-3 g per head 2 times a day is given inside. The use of norsulfazole can be combined with intramuscular injections of erythromycin (4000-6000 units per 1 kg of animal weight 2 times a day).

Once a day, simultaneously with the intramuscular administration of an antibiotic, 50,000-100,000 IU of penicillin or streptomycin dissolved in 10 ml of saline, or oil-based bactericidal emulsions (masticide, mastisan A, B or E) are injected into the affected portion of the udder after secretion is secreted. ) To dilute the exudate of the udder, before using these preparations, a warm 1-2% solution of bicarbonate of soda is introduced through the nipple and removed. Depending on the clinical condition of the sick animal, treatment is continued for 3-4 days.

In livestock breeding for the treatment of sick sheep, it is more convenient to use drugs that have a prolonged effect. With abscesses and gangrene, the udder is cut, pus or dead tissue is removed, the cavity is irrigated with a disinfectant solution (rivanol 1: 1000-3000, 3% hydrogen peroxide, 1% lysol, etc.). Then antibiotics and sulfonamides are administered in the doses indicated above.

Prevention Ill sheep acquire immunity and do not get sick again. Uterine flocks are formed only by a livestock that is safe for infectious mastitis. Lactating queens are provided with complete feeding and create proper conditions for keeping. Systematically inspect animals, paying attention to the condition of the mammary gland.

Control measures. In dysfunctional farms, the broodstock immediately after lambing is administered intramuscularly with antibiotics of prolonged action, the injections are repeated at a monthly interval of 2-3 times (before weaning). After isolating patients, the room must be cleaned and disinfected. For disinfection, conventional disinfectants are used.
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Sheep Infectious Mastitis

  1. INFECTIOUS MASTITIS
    Infectious mastitis is an acute, contagious disease of female animals of various species, mainly cattle and small cattle, manifested by various forms of inflammation of the udder, as well as a violation of the general condition and intoxication of the body (see color. Paste). Historical background, distribution, economic damage. Cows mastitis have been known since ancient times and are widespread.
  2. GENERALIZED POST-BIRTH INFECTIOUS DISEASES LACTATIVE MASTITIS
    SEPTIC SHOCK IN OBSTETRICS One of the most serious complications of purulent-septic processes of any localization is septic or bacterial-toxic shock. Septic shock is a special reaction of the body, expressed in the development of severe systemic disorders associated with impaired adequate tissue perfusion, occurring in response to the introduction of microorganisms or their
  3. GENERALIZED POST-BIRTH INFECTIOUS DISEASES LACTATIVE MASTITIS
    SEPTIC SHOCK IN OBSTETRICS One of the most serious complications of purulent-septic processes of any localization is septic or bacterial-toxic shock. Septic shock is a special reaction of the body, expressed in the development of severe systemic disorders associated with impaired adequate tissue perfusion, occurring in response to the introduction of microorganisms or their
  4. INFECTIOUS AGALACY OF SHEEP AND GOATS
    Infectious agalactia (Latin - Agalactia contagiosa ovium et caprarum; English - Contagious agalactia) is a severe febrile contagious disease of sheep and goats of all ages, occurring in the form of enzootia, characterized by damage to the udder, joints and eyes, termination of milk secretion, as well as abortion, skin damage and inflammation of the testes. Historical background, distribution, degree
  5. Infectious agalactia of sheep and goats
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  6. Sheep Infectious Anaerobic Enterotoxemia
    Anaerobic enterotoxemia - (enterotoxaemia infectiosa anaerobica) - (synonym: softened kidney, overeating disease, herbal disease, etc.) - a severe disease that manifests itself as hemorrhagic enteritis, nervous phenomena, kidney damage and signs of general intoxication. Epizootological data. Sheep are susceptible to infectious enterotoxemia, and other animals are sick (large
  7. Sheep Infectious Catarrhal Fever (Blue Tongue, Blutang)
    Catarrhal fever of sheep (febris catarrhalis ovium) is an infectious disease manifested by a fever, inflammatory and necrotic lesions of the digestive tract, tongue and degenerative changes in skeletal muscles. Etiology. The causative agent, the RNA genomic virus, belongs to the Reoviridae family, the genus Orbivirus. The particle diameter of the purified culture virus is 50-65
  8. Mastitis
    Untreated engorgement on time can lead to inflammation of the breast tissue called mastitis. Mastitis does not necessarily mean infection. The suffix - um, as in the word arthritis, means inflammation with swelling, soreness, redness and pain. It is often difficult for the mother (and the doctor) to say what the inflammation caused by: engorgement or blockage of the milk ducts (none of them require antibiotics), or
  9. Mastitis
    Mastitis (mastitis) is an inflammation of the mammary gland that develops as a result of exposure to mechanical, thermal, chemical and biological factors. Causes of mastitis. Mastitis is a polyetiological disease. The causes of inflammation of the mammary gland are manifold and usually have a complex effect. The content of cows in large dairy complexes is unthinkable
  10. Postpartum Mastitis
    In recent years, the frequency of postpartum mastitis has decreased slightly. However, the course of the disease is characterized by a large number of purulent forms, resistance to treatment, extensive breast damage, a tendency to generalization. With mastitis, puerperas often infect newborns. In the etiology of mastitis, the leading place is occupied by pathogenic staphylococcus. Clinical picture and
  11. MASTITIS
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  12. Task 50. LACTATION MASTITIS
    Puerpera F., 22 years old, was delivered through the natural birth canal by a live full-term male child weighing 3500 g. On the 4th day of the postpartum period, complaints of headache, weakness, pain in the right mammary gland, a sharp increase in body temperature to 39 ° C, chills . Status praesens. The condition is satisfactory. The skin is pale, dry. Marked engorgement of dairy
  13. Postpartum Mastitis
    This disease is a relatively rare form of postpartum infection. There are epidemic that occur in puerperas in the postpartum ward of the maternity hospital, and endemic forms of mastitis that occur in nursing mothers in community-acquired settings. Endemic mastitis most often develops no earlier than 2-3 weeks after birth. Predisposing factors are
  14. Prejudice about mastitis.
    Liliya Kazakova, pediatrician, consultant on breastfeeding. 1. Very often, nursing mothers call mastitis lactostasis. What does lactostasis look like? Painful tuberosity and often redness of the skin over the tubercle. The appearance of such a tuberosity or compaction is associated with the blockage of one of the ducts with a supposedly fat droplet and a violation of the outflow of milk from the lobe of the gland. Sometimes lactostasis
  15. Mastitis in animals: causes, pathogenesis, signs, classification, treatment and prevention
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  16. Purulent mastitis of newborns
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  17. Streptostaphylococcosis (mastitis)
    Streptostaphylococcosis
  18. CHLAMIDIOSIS SHEEP
    Sheep chlamydia (Latin - Abortus enzootica ovis; English - Chlamydiosis of sheep; chlamydial abortion, enzootic abortion, viral abortion) is a contagious, enzootically occurring disease, manifested clinically mainly by abortion in the last week of coagulation or premature lambing and the birth of the weak, non-viable lambs. Historical background, distribution, hazard and
  19. Sheep Shearing Organization
    Shearing sheep is an important technological process in the production of wool. For shearing sheep equipped with shearing points. It is carried out manually and electromechanically. The electromechanical haircut is the most progressive, it is 4-5 times more productive than a manual one. So, if a shearing shear cuts 20 sheep with a pair of scissors per working day, then electromechanically you can shear 100 or more heads, shearing a sheep
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