Reference : Functional Changes Induced by Necrotic Laryngitis in Double Muscled Calves
Scientific journals : Article
Life sciences : Anatomy (cytology, histology, embryology...) & physiology
Life sciences : Veterinary medicine & animal health
http://hdl.handle.net/2268/6250
Functional Changes Induced by Necrotic Laryngitis in Double Muscled Calves
English
Lekeux, Pierre mailto [Université de Liège - ULg > Faculty of Veterinary Medicine > Laboratory for cardio-pulmonary functional investigation > >]
Art, Tatiana mailto [Université de Liège - ULg > Faculty of Veterinary Medicine > Laboratory for cardio-pulmonary functional investigation > >]
10-Oct-1987
Veterinary Record : Journal of the British Veterinary Association
121
15
353-355
Yes (verified by ORBi)
International
0042-4900
[en] Necrotic laryngitis ; calves
[en] The effects of necrotic laryngitis on the mechanics of breathing and gas exchange were investigated in five Belgian blue double muscled calves two to three months old. All the animals showed the typical clinical picture of the respiratory syndrome associated with naturally occurring necrotic laryngitis. Highly significant increases in total pulmonary resistance, minute viscous work of breathing and alveolar-arterial oxygen gradient, and highly significant decreases in dynamic lung compliance and arterial oxygen tension were recorded in the infected animals, when compared to reference values for healthy cattle. The ratio of inspiratory to expiratory viscous work of breathing was also significantly increased probably because of a partial collapse of the extrathoracic trachea during inspiration. It was concluded that necrotic laryngitis disturbs pulmonary function to such an extent that it impedes the growing process and predisposes the infected animals to secondary bronchopneumonia and ventilatory failure due to respiratory muscle fatigue.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/6250

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