Seasonal incidence of enzootic pneumonia and its effect on the growth of lambs

Authors: Shortridge EH, Cordes DO, Kirton AJ, O'Hara PJ
Publication: New Zealand Veterinary Journal, Volume 24, Issue 4, pp 59-64, Apr 1976
Publisher: Taylor and Francis

Animal type: Livestock, Production animal, Ruminant, Sheep
Subject Terms: Bacterial, Environment, Pneumonia/pleurisy, Viral, Disease/defect, Infectious disease, Notifiable organisms/exotic disease, Growth/development, Respiratory system, Seasonality/photoperiod
Article class: Scientific Article

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Abstract: Enzootic pneumonia is one of the commonest diseases of sheep in New Zealand and may affect most young sheep in the late summer to autumn period during their first 2 years of life. The disease is usually subclinical or accompanied only by coughing. Outbreaks of very severe pneumonia in some flocks may result in deaths but such outbreaks are uncommon. Pneumonia accounted for 9% of deaths of adult sheep in a survey by Davis (1974) in Hawke`s Bay and a slightly higher incidence from this cause was reported from a smaller King Country survey by Pyke (1974). This communication reports on the seasonal incidence of pneumonia in a flock of mixed breed of lambs over five seasons and its effect on their growth.

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