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Australian bat lyssavirus in horses · Alfaxalone or propofol for caesarean in bitches · Cerebellar abiotrophy · Brucella and Leptospira in feral pigs · Breech strike, mulesing and insecticide · Parasites in a green tree snake · ELISA to detect Facsiola hepatica bs_bs_banner EDITORIAL EDITORIAL

Bovine respiratory disease complex (BRDC) is a multifactorial disease causing significant economic losses in the intensive cattle industry. 1 Research conducted in Europe and North America suggests that Mycoplasma bovis has an important role in its development. In Australia, however, M. bovis has been associated with cases of mastitis in dairy cattle, but its presence in beef cattle populations and role in the development of BRDC in Australian feedlots has not been investigated. In the first cattle article this month, the role of M. bovis in the etiology of BRDC is reviewed and preliminary results of an investigation into BRDC outbreaks that occurred in seven Australian feedlots between 2008 and 2010 are presented. Nasal swabs from clinical cases as well as lung and tracheal samples from BRCD deaths were tested for the presence of bovine herpes-virus 1, bovine viral diarrhoea virus 1, bovine parainfluenza virus 3, bovine respiratory syncytial virus and M. bovis using PCR. M. bovis was the most frequently detected pathogen in the nasal swab and tissue samples and was present in combination with bovine herpes-virus 1 in the majority of samples tested. bs_bs_banner EDITORIAL EDITORIAL

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