1. Swine diseases

2.  Mange: Sarcoptes scabei var suis  Greasy pig disease: Staphylococcus hyicus: Gram-positive coccus  Swine pox: Swine pox virus  Erysipelas: Erysipelothrix rhusiopathiae: Gram-positive, aerobic, slightly bent, thin bacillus

3.  Sarcoptes scabei var suis (not zoonotic)  represents the most important ectoparasitic disease of swine  nursery or grower pigs

4. Clinical signs intense pruritus, lichenification, papules, crusts poor production susceptible to other diseases

6. Diagnosis - clinical signs, skin scrape Treatment and control, acaricide (amitraz) topically, ivermectin injection 0.5 mm in length, gray to white, and just visible to the naked eye when on a black background ova, larvae, nymphs, adults develop in the epidermis Place the scraping on a piece of black paper for a few minutes. Then carefully blow off the superficial debris and examine the site on the paper for the small, light colored mites.

7.  Exudative dermatitis  Staphylococcus hyicus: Gram-positive coccus  Affects late preweaning pigs: few days to about eight weeks of age

8. Clinical signs exfoliation of skin, excess sebaceous secretion pruritis not a feature unless complicated my mange Diagnosis - clinical signs and culture or histopathology Sebaceous glands secrete excessively and there is accumulation of greasy exudate over lesions

9.  Treatment: frustrating  Injectible penicllin, oxytetracyline  Tetracyclines in feed  Topicals: 10% bleach, chlorhexidine, Virkon® (Durvet) or dilute tamed iodine  Control  Sanitation: sanitation for pregnant sows, especially in housing, and washing of sows may be of value  Control external parasites  Good nutrition

10.  Swine pox virus ◦ Poxviridae family  Only pigs less than 4months old

11. Clinical signs papules 1-6 mm in diameter pustules, crusts clear spontaenously “round to oval cutaneous lesions that heal in three to four weeks” Diagnosis - clinical signs, biopsy intracytoplasmic inclusion bodies Treatment - not necessary: herd immunity

12.  Erysipelothrix rhusiopathiae ◦ Gram-positive, aerobic, slightly bent, thin bacillus  Diamond skin disease: zoonotic  pigs 3months - 3years old

13. Clinical signs widespread ecchymotic hemorrhages due to microthrombi arthritis, endocarditis

14.  Diagnosis  Diamond skin lesions pathognomonic  Culture of blood, joints, lung, liver  Treatment  Penicillin is the drug of choice  Control  General sanitation  Bacterins or attenuated live vaccines

15.  Swine lice: louse, Pediculosis  Baby piglet anemia

16.  Haematopinus suis: zoonotic, 6 mm long (largest louse)  Lifecycle ◦ sucking louse (anemia) ◦ entire LC on host  Indicator of poor management

17.  Clinical signs  pruritis (mild), anemia, poor growing  Diagnosis  visible to naked eye  Treatment - same as for mange

18.  Iron deficiency  Piglets iron demand is greater than the sows milk (15-50%)  Pigs raised in the outdoors may not need iron  Vit E/ selenium deficiency : Fe toxicity !!

19.  Clinical signs  anemia within 2-3 days of birth  dyspnea, edema, pale skin, lethargy  Diagnosis - clinical signs, CBC  Treatment - 200mg iron dextran at 1-3 days of age

20. Africa Swine Fever Foot and mouth disease Hog cholera / classical swine fever Swine vesicular disease Malignant catarrhal fever

21.  Virus family Flaviviridae, genus Pestivirus  Highly contagious viral dz  1978: ‘hog free’  Swine and boars  Direct/ uncooked meat  CS: High Fever: 106-108 o F (>41 o C) Depression Conjunctivitis Constipation, then Diarrhea Skin hemorrhages/Cyanosis Stillbirths, deformities, mummies neurologic Renal petechiation

22.  African swine fever  genus asfivirus in the family Asfarviridae  Only DNA virus ~ arbovirus  hemorrhage in multiple areas: hot sick red pigs  is a tick-borne (ornithodorus), contagious, febrile, systemic viral disease of swine  100% mortality  No vaccine

23. 1. Greatly enlarged dark red to black friable spleen 2. Enlarged hemorrhagic gastrohepatic lymph nodes 3. Enlarged hemorrhagic renal lymph nodes

24. ◦ African Swine Fever pigs do not develop conjunctivitis or encephalitis ◦ Despite high fever, ASF infected pigs stay in good condition, whereas hog cholera infected pigs drastically lose weight

25.  Foot and mouth disease - apthavirus*  Swine vesicular disease - enterovirus  Vesicular exanthema - calicivirus  Vesicular stomatitis - rhabdovirus

27.  http://www.aphis.usda.gov/animal_health/an imal_dis_spec/swine/ http://www.aphis.usda.gov/animal_health/an imal_dis_spec/swine/  http://www.ncsu.edu/project/swine_extensio n/ncporkconf/2002/roberts.htm http://www.ncsu.edu/project/swine_extensio n/ncporkconf/2002/roberts.htm  http://www.vetmed.wisc.edu/pbs/zoonoses/ Erysipelas/erysipelasindex.html http://www.vetmed.wisc.edu/pbs/zoonoses/ Erysipelas/erysipelasindex.html  http://vetmed.iastate.edu/vdpam/new- vdpam-employees/food-supply-veterinary- medicine/swine/swine- diseases/haemophilus-parasuis- http://vetmed.iastate.edu/vdpam/new- vdpam-employees/food-supply-veterinary- medicine/swine/swine- diseases/haemophilus-parasuis-  http://vetpath.wordpress.com/category/necr opsy-cases/

28.  http://www.fmv.utl.pt/atlas/figado/pages_us /figad015_ing.htm http://www.fmv.utl.pt/atlas/figado/pages_us /figad015_ing.htm  http://www.cfsph.iastate.edu/DiseaseInfo/dis ease.php?name=influenza&lang=en http://www.cfsph.iastate.edu/DiseaseInfo/dis ease.php?name=influenza&lang=en  http://microgen.ouhsc.edu/a_pleuro/a_pleur o_home.htm http://microgen.ouhsc.edu/a_pleuro/a_pleur o_home.htm  http://www.cvm.tamu.edu/fadr/disease.aspx ?did=2500