Inffi 4, repro & varia Flashcards
Porcine brucellosis (luomistauti)
An infectious disease of
pigs, caused by Brucella suis, characterized by abortions and weak or stillborn piglets.
Alimentary route.
5 serovars, biovar 2 is ZOONOTIC.
Reproduction failure
Abortion
Weak or stillborn piglets
Epididymitis, orchitis in boars
Swollen joints &tendon sheats, lameness & incoordination may occur
No treatment, no vaccine
Post mortem findings in porcine brucellosis (luomistauti)
- Metritis
- Orchitis
- Osteomyelitis
- Abscesses or other purulent lesions in reproductive
and non-reproductive organs
Porcine parvovirus (PPV)
A contagious disease of swine, caused by Parvovirus,
characterized by reproduction failure.
Alimentary, respiratory or genital route.
Pregnant sows/gilts are susceptible in the first half of pregnancy
-> fetuses die - reabsorbed or mummified
- REPRODUCTION FAILURE
- Increased return to oestrus
- Increased number of mating/artificial inseminations
needed to conceive - Decrease in the number of piglets in litter
- Stillbirths
- Mummified fetuses
- Weak neonates
- In boars: can temporarily disturb spermatogenesis
No specific treatment, vaccine available.
Post mortem:
Non-specific – aborted fetuses and weak Post mortem stunted piglets
Porcine circoviral disease (PCVD)
A contagious disease of swine, caused by Circovirus, and characterized by post-weaning multisystemic wasting syndrome, & dermatitis and nephropathy syndrome. Alimentary route.
Clin. disease in 6-16 w olds.
Serotype PCV2 is pathogenic. Mortality can be up to 90%.
Associated syndromes: PMWS and PDNS
Clin. signs:
POSTWEANING MULTISYSTEMIC WASTING SYNDROME (PMWS) – or systemic disease (PCV-SD):
- Rapid weight loss in early finishing, with reduced feed & water consumption, wasting
- Labored breathing (pneumonia)
- Diarrhea
- Enlarged lymph nodes
- Jaundice
- High mortality
PORCINE DERMATITIS AND NEPHROPATHY SYNDROME (PDNS):
- Skin and kidney lesions
- Arthritis
No specific treatment, vaccine available.
Post mortem findings in porcine circoviral disease
PMDS:
- Enlarged LNs
- White spots on kidney’s cortices
- Hepatic atrophy and paleness
- Catarrhal enteritis
PDNS:
- Hemorrhagic and necrotic skin lesions
- Kidneys are enlarged, pale, and may have pinpoint
hemorrhages on the surface
Swine erysipelas
An infectious disease of
swine, caused by Erysipelothrix rhusiopathiae, and is characterized by sudden death, skin lesions and arthritis.
Alimentary route or skin abrasions.
Clin. disease in growing-finishing pigs.
Host range: swine, sheep, birds
ACUTE, SUBACUTE, CHRONIC
ABs, vaccination.
Clinical signs of acute swine erysipelas
Sudden deaths
Fever, stiff walk on toes, depression, anorexia, thirst
Skin lesions – widespread discoloration of the ears, snout and abdomen, diamond-shaped skin lesions anywhere on the body
Clinical signs of subacute swine erysipelas
Characteristic skin lesions – may not persist more than few days
Inappetence, mild fever
Clinical signs of chronic swine erysipelas
Arthritis
Endocarditis
Post mortem findings in swine erysipelas
Skin lesions, widespread ecchymotic
hemorrhages (kidney, pleura, peritoneum), venous infarction of stomach
Nonsuppurative proliferative arthritis
Vegetative endocarditis
Vesicular exanthema of swine
A contagious vesicular disease of swine, caused by Vesivirus (VESV), and is characterized by fever and
vesicles on snout, lips, nostrils, tongue, feet and mammary glands.
Alimentary or transcutaneous route.
- High fever
- Vesicles in the mouth, on the snout, teats and udder and coronary skin, sole, heel bulbs and between the claws
Rupture in 24-48h -> rapid fall of
temperature - Lethargy, anorexia
- Lameness
No treatment, no vaccine
Post mortem: vesicles
Swine vesicular disease (SVD)
A contagious virosis, caused by Picornavirus (SVDV), that is characterised by pyrexia and vesicular lesion on the snout, feet and teats.
Transcutaneous, transmucosal and ingestion routes.
POTENTIAL ZOONOSIS
Vesicles and erosions (snout, feet, teats)
Pyrexia and lameness
Post mortem: vesicles/lesions
No treatment, no vaccination
