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* Mainly in growing pigs * common in many areas of the world
Erysipelas
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ETIOLOGY * Erysipelothrix rhusiopathiae * remain in carcass even after processing * carrier in pigs can cause re-infection
Erysipelas
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CLINICAL SIGNS * acute septicemia * fever (40 - 42°C) * walk stiffly
Erysipelas
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CLINICAL SIGNS * lie on sternum * erythema of ears, snout, and abdomen * diamond shaped skin lesion all over the body (lateral and dorsal part)
Erysipelas
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LESIONS * swollen spleen * congested lungs * arthritis
Erysipelas
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DIAGNOSIS * penicillin treatment within 24 hours * diamond shape lesion * staining (spleen/ kidney)
Erysipelas
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DIAGNOSIS * culture (blood agar) (tonsil/lymph nodes) * gram staining * bacterial isolation
Erysipelas
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TREATMENT * simple-acting penicillin
Erysipelas
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CONTROL * vaccination (4 - 6 months) * elimination of carrier * sanitation
Erysipelas
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* highly contagious viral disease of pigs * affects pigs of all ages * high morbidity and mortality
Hog cholera/ classical swine fever
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ETIOLOGY * pestivirus from togaviridae family * host specific * virus replicate in cell culture of pig origin * virus survive in bedding for days to weeks, depending on temp
Hog cholera/ classical swine fever
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ETIOLOGY * temperature remain in frozen pork (<4 yrs), chilled and preserve carcass (3 -6months ) * most common route infection is ingestion and replication occur in tonsil * viremia occurs within 24 hrs
Hog cholera/ classical swine fever
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ETIOLOGY * direct contact (most common mode of transmission) * infected pigs shed virus in body excretion/ secretion * pigs surviving infection have depletion of lymphoid tissue and susceptible to concurrent infection
Hog cholera/ classical swine fever
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CLINICAL SIGNS * incubation period (5-10) or (2 - 20) days * anorexia, lethargy and fever (41c) * multifocal hyperaemia of skin * transient constipation, diarrhea, w/ vomiting
Hog cholera/ classical swine fever
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CLINICAL SIGNS * dyspaea * ataxia, paresis, and convulsion * pigs file up or huddle together
Hog cholera/ classical swine fever
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CLINICAL SIGNS * mortality in young (100%) * pre-terminal cyanosis of skin, especially ventrally base of ear and snout * transplacental infection
Hog cholera/ classical swine fever
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LESIONS * leukopenia * thrombocytopenia * turkey egg appearance of kidney * infarction of margin of spleen
Hog cholera/ classical swine fever
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LESIONS * button ulcers in large intestine * enlarge hemorrhagic lymph node * non-suppurative encephalitis w/ severe vasculitis
Hog cholera/ classical swine fever
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DIAGNOSIS * pneumonia (tonsils lymph node, spleen, kidney, distal ileum * immunofluorescence * immunoperoxidase * neutralization * ELISA
Hog cholera/ classical swine fever
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TREATMENT * hyperimmune serum
Hog cholera/ classical swine fever
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CONTROL * vaccination * slaughter and disposal of carcass * disinfection * waste-food feeding management
Hog cholera/ classical swine fever
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* highly contagious disease with signs and lesion resembling HC, but it was restricted to Africa
African swine fever
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ETIOLOGY * iridovirus, w/ some properties of poxvirus/ asfarviridae
African swine fever
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TRANSMISSION * Ornithodoros spp. (Tick act as vector) Including O. Coriaceus and O. Turicata from USA * Fomites, horizontal
African swine fever
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CLINICAL SIGNS * Ist sign is fever (40.5 - 42°C) * Leukopenia and thrombocytopenia * Anorexia, listlessness, incoordination, and cyanosis
African swine fever
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CLINICAL SIGNS * Vomiting, diarrhea, conjunctivitis * Abortion in pregnant animal * Survivors are usually carriers for life, although virus is not continuously present in the exertion
African swine fever
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LESIONS * Hemorrhage of lymph nodes and kidneys * Splenomegaly * Edematous areas of cyanosis in hairless portion * Pleural, pericardial and peritoneal fluid are excessive * Focal,caseous necrosis and mineralization of lungs
African swine fever
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DIAGNOSIS * hemadsorption * immunofluorescence * immunoperoxidase * ELISA, PCR
African swine fever
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TREATMENT * No treatment or vaccines available
African swine fever
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CONTROL * Control movement of animal * Control vectors * Quarantine and slaughter
African swine fever
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An acute and highly contagious, viral infection of domestic and wild cloven-footed animals
Food and mouth disease
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ETIOLOGY • Enterovirus of the picornaviridae family or Aphthosvirus Family: A south African Territory 1 O SAT 2 C SAT 3 Asia 1 • Horse are resistant
Food and mouth disease
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ETIOLOGY • Rapidly inactivated by increase or decrease pH, sunlight and increase temp. • Lacks liquid containing envelope resistant to ether and chloroform • Most commonly used disinfectants (Na hydroxide, Na carbonate, acetic acid, methylene blue, gentian violet, formalin and dye)
Food and mouth disease
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TRANSMISSION • Most common transmission is aerosol (50km.) • When man inhale the respiratory aerosol of FMD, virus persist in the respiratory tract for 24hrs • Esophageal fluid may contain the virus, even before and after the lesion appear • Cattle may retain the virus in tonsillar cells for as long as 3yrs after recovery
Food and mouth disease
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TRANSMISSION • Virus is also present in milk, pasteurization does not kill the virus, because they are protected by cell debris and fats. • Source of infection: Al, meat, bone,; garbage food, contaminated vaccine • Pigs tend to excrete more virus than ruminants • The disease is difficult to detect in sheep, but they can readily transmit the virus
Food and mouth disease
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CLINICAL SIGNS • Morbidity and mortality is high in young • Initial signs: dullness, in appetence, fever and shivering • Following by: smacking of lips, drooling, shackling, and kicking of the feet Vesicle formation: nares, buccal cavity, claws, mammary gland
Food and mouth disease
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CLINICAL SIGNS • Pronounced salivation and lameness • Abortion in pregnant, death young • Deformed claw • Mammary and involvement may result to mastitis and permanent impairment of milk production • Prolonged unthriftiness and failure to gain weight in
Food and mouth disease
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LESIONS • Vesicles • In sheep, dental pad is the most common site • Lesion in rumen pillars, myocardium in skeletal muscle • Type C have predilection for heart membrane
Food and mouth disease
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DIAGNOSIS • Complement fixation • Virus neutralization • Agar-gel precipitation • ELISA, PCR • DNA probes, labeled with avidin-biotin (fingerprinting/ PCR) in products form infected animals
Food and mouth disease
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TREATMENT • No specific cure, soft beddings • Antibiotics-to prevent secondary treatment • Wound Antiseptic
Food and mouth disease
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CONTROL • Alleviate sign, avoid feeding waste • Vitamins and minerals • Isolation and quarantine
Food and mouth disease
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CONTROL • Slaughter and disposal of affected animals • Hygiene and sanitation • Vaccination program ◦ Sow: once/twice ◦ Piglets: 5-1 week before farrow ◦ Gilts: 1-2 a year
Food and mouth disease
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• Transient disease of pigs in which vesicular lesions appear in mouth and feet. • Lesion is similar to FMD, but swine do not lose condition and the lesions heal rapidly • Do not cause severe production losses. • Pigs are the natural host, although the virus is present in sheep and cattle.
Swine vesicular disease (SVD)
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ETIOLOGY • Enterovirus of Picornaviridae/ or Vesiculoviridae
Swine vesicular disease (SVD)
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TRANSMISSION • Direct and indirect contact • Contaminated pork and pork products
Swine vesicular disease (SVD)
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CLINICAL SIGNS • Vesicles in mouth, lips and snout, feet • Lesions are mild or inapparent, especially when pigs are kept in soft bedding
Swine vesicular disease (SVD)
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DIAGNOSIS • Complement Fixation test • ELISA, PCR • Require passage in tissue culture • Serum neutralization • Agar-gel precipitation
Swine vesicular disease (SVD)
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CONTROL • Cooking pork and pork products • Control pig movement • Disinfection (strong alkalies, iodophores, acids, hypochlorites, iodine)
Swine vesicular disease (SVD)
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An acute, highly infectious disease, characterized by fever a formation of blister
Swine vesicular disease (SVD)
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ETIOLOGY • Calicivirus or Vesivirus from caliciviridae • 13 types of VESV • > 20 of SMSV • Isolated virus from marine, are capable of producing VES in Swine
Swine vesicular disease (SVD)
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CLINICAL SIGNS • Vesicular on the snout, oral mucosa and feet • Fever, lameness, anorexia, vesicle in mouth and hoof
Swine vesicular disease (SVD)
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DIAGNOSIS • Fever and vesicle w/c break w/in 24-48 hrs • Complement fixation test • Electron microscopy • Serum neutralization • ELISA
Swine vesicular disease (SVD)
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TREATMENT • No specific treatment
Swine vesicular disease (SVD)
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CONTROL • Prevent pig movement • Strict hygiene • No implement vaccination program
Swine vesicular disease (SVD)
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ETIOLOGY • Streptococcus suis
Type 1. Joint-ill (neonatal) septic Polyarthritis
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TRANSMISSION • Contact • Oral • Navel • Skin breaks • Knee breaks
Type 1. Joint-ill (neonatal) septic Polyarthritis
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CLINICAL SIGNS • Subacute ◦ Lameness (3 to 5 days) • Chronic ◦ Joint distension (7-15 days) ◦ Fever, lameness, swelling joints
Type 1. Joint-ill (neonatal) septic Polyarthritis
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LESIONS • Subacute – joint capsule are filled with necrotic materials, fibrin and flecks of pus ◦ synovial membrane are hyperaemic • Chronic – necrosis – fibrosis of surroundings muscles pale-green pus o joint-capsule
Type 1. Joint-ill (neonatal) septic Polyarthritis
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DIAGNOSIS • Bacterial Isolation • Necrotic debris
Type 1. Joint-ill (neonatal) septic Polyarthritis
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TREATMENT • Long action Penicillin, amoxicillin, penicillin streptomycin, aminoglycoside, and cephalexin • Antibiotic sensitivity of causative agent
Type 1. Joint-ill (neonatal) septic Polyarthritis
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CONTROL • Colostral immunity/intake • Hygiene and sanitation/ use povidone iodine • Provide non-abrasive floors
Type 1. Joint-ill (neonatal) septic Polyarthritis
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• It affects mostly growers • Acute • Weanling and growers • Respiratory
Type 2. Bronchopneumonia
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CLINICAL SIGNS • Fever • Tremor • Depression • Incoordination/pneumonia arthritis and abortion
Type 2. Bronchopneumonia
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LESIONS • Red skin patches • Thick joint capsule • Excess cerebrospinal fluid and meningitis • Endocarditis
Type 2. Bronchopneumonia
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DIAGNOSIS • Bacterial isolation
Type 2. Bronchopneumonia
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TREATMENT • Tetracycline antibiotic • Amoxicillin develop resistance
Type 2. Bronchopneumonia
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CONTROL • Vaccination • Hygiene and sanitation
Type 2. Bronchopneumonia