NADIS Knowledge Transfer - Sheep vaccines (2)

Please select one or more answers from the list for each question. Many have multiple answers - these will only be marked as correct when all the right answers and none of the wrong answers, have been selected

Highly efficacious vaccines are available against which of the following diseases (note more than one answer may be correct):

	enzootic abortion of ewes
	toxoplasmosis
	clostridial diseases
	pasteurellosis,
	erysipelas

When should enzootic abortion vaccines be administered?

	before the start of the mating period
	after the rams have been removed
	four weeks before lambing time
	at lambing
	at weaning

Johnes disease in sheep presents as:

	chronic weight loss/low body condition score and poor fleece in individual middle-aged sheep
	chronic weight loss/low body condition score and poor fleece in individual young sheep
	chronic scour and poor fleece in individual middle-aged sheep
	chronic scour and bottle-jaw in individual middle-aged sheep
	Fleece loss at itching in individual middle-aged sheep

Which of the following statements about erysipelas in sheep is correct? (Note more than one answer may be correct)

	severe lameness typically affecting growing lambs aged six weeks to four months
	severe lameness typically affecting growing lambs aged one to six weeks
	lameness can be prevented by penicillin injection at birth
	lame sheep respond well to antibiotic injection.
	lameness can be prevented by vaccination of the dam

The target barren rate after a 6 week breeding period should be around:

	2 per cent
	4 per cent
	6 per cent
	8 per cent
	10 per cent

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