Sheep And Goat Flashcards
What is CAE and OPP in goats and sheep that are two related virus’s in these two species?
Carpine Arthiritis Encephalitis
Ovine Progressive Pneumonia
How is CAE and OPP transmitted? How can we prevent?
Vertically
Colostrum management and heat treatment of colostrum
Pasteurised milk to kids
What are the clinical signs in adults? CAE and OPP
Cannot maintain weight
Multiple swollen joints
Symmetrical firm mammary swelling
Reduced productivity
Common test for OPP/CAE?
ELISA and AGID
What should we do with new animals to reduce the chance of OPP.CAE introduction?
Isolate for several weeks and test
What bacteria causes caseous lymphadenitis?
Corny bacterium pseudo tuberculosis (gram + cocci)
Does C.Pseudotuburculosis persist in environment?
Yes
What is the most common clinical sign of caseous lymphadenitis?
Abscess on neck LN
How can caseous lymphendinitis infect a sheep/goat?
Inhale, ingest or contaminated wound with bacteria
Best way to test for caseous lymphadenitis?
Paired serology titres 2 weeks apart looking for a 4 fold rise in titre in active infection
How do we manage caseous lymphadenitis?
Monitoring, lance abscess, isolate infected animals
Wattle cysts look similar to Caseosu lymphadenitis, how do we tell difference?
Aspirate fluid (yellow transparent)
Ultrasound: non encapsulated
What are the CS of Johne’s in sheep?
Chronic weight loss (diarrhoea not as much as a concern in sheep/goat), and poor fleece
What hormone can be used to measure pregnancy in goat?
Progestin
How long is goat estrus cycle?
20-21 days
Clinical sighs of hemonchous contortus?
Weight loss
Appetite loss
Bottle jaw
Weight loss
Anemia
Give two reasons why h.controtus becomes resistant easily?
Large genetic pool with lots of natural resistance gene
Good survivors: hypobiosis in host and environmental resistance outside
High fecundity: lots of eggs
What is refugia?
A population of worms not exposed to dewormer and therefore remain sensitive to anthilmintic so they can breed with resistant worms
Do SCC tend to be higher in goats or cattle?
Goats as had apocrine secretion path of milk in goats
Most sub clinical cases of mastitis cases in goats are caused by which bacteria?
Most clinical cases are caused by?
Coagulase negative staph
Staph aureus
