4 more diseases

contagious agalactia

mycoplasmal disease of sheep and goats causing mastitis, arthritis, and keratoconjunctivitis

Mycoplasma agalactiae

causative agent of Contagious agalactia in sheep and goats

middle east and southern europe

high prevalence of contagious agalactia in these places

1 to 8 weeks

incubation period of Contagious agalactia

nasal and ocular discharges, milk, urine, feces, semen

shedding of M. agalactiae

56 to 60oC for 60 to 120 mins

colostrum pasteurization

mastitis, arthritis, keratoconjunctivitis

major syndromes of contagious agalactia

tarsal and carpal joints

location of arthritis in contagious agalactia

young animals and lactating females

severely affected by M. agalactiae

Brucella ovis

bacterium circulating sheep

sheep, farmed red deer

primary host of B. ovis

urine, semen, vaginal discharge, milk

shedding of B. ovis

prepuce, conjunctiva, oral, nasal, rectal mucosae

transmission routes of B. ovis in rams

1% solution of citric acid

less effective disinfectant in B. ovis

xylene and calcium cyanamide

decontamination of liquid manure in 2 to 4 weeks with this

tail

more often affected part of the epididymis in ovine epididymitis

Farrell’s medium

medium that inhibits B. ovis

as young as 4 to 6 months but more common on older

susceptible age of infection in B. ovis

Chlamydia abortus

causes enzootic abortion in small ruminants

sheep and goats

primary reservoir hosts of Chlamydia abortus

australia, new zealand

countries free from C. abortus

elementary body

infectious, smaller, relatively inert form of chlamydia

reticulate body

non-infectious, intracellular only form of chlamydia

birth products

primary route of transmission in C. abortus

around the third month of pregnancy

increased susceptibility of infection of C. abortus

Salmonella abortusovis

causes abortions and stillbirths in pregnant ewes, mortality in neonates

ingestion

most common route of S. abortusovis

abortion in the last 4 to 6 weeks of gestation

major clinical sign of S. abortusovis

Mycoplasma mycoides subspecies mycoides

causative agent of CBPP

cattle and asian buffalo

primary hosts of CBPP

respiratory aerosols

main transmission route of CBPP

3 weeks to 6 months

incubation period of M. mycoides subsp. mycoides

PCR

primary identification method for CBPP

Mycoplasma capricolum subspecies capripneumoniae

causative agent of CCPP

goats

primary host of CCPP

Mycoplasma biotype F-38

former name of M. capricolum capripneumoniae

2 days to 4 weeks

incubation period of CCPP

cattle and water buffalo

primary host of hemorrhagic septicmeia

Pasteurella multocida subsp. multocida

causative agent of hemorrhagic septicemia

southeast asia

highest incidence of hemosep

3 to 5 days

incubation period of hemosep

water buffalo

species where hemosep more severe signs and shorter course