Publications

the effect of leptospira hardjo vaccine in a northern queensland beef herd.	in a northern queensland beef herd where there was serological evidence of l. hardjo infection, lactation failure or wastage between pregnancy diagnosis and branding was 11.9% in animals vaccinated with a single dose of a l. hardjo vaccine and 19.4% in unvaccinated controls. this difference was statistically significant (p less than 0.05). vaccination caused a significant (p less than 0.05) reduction in rate of lactation failure in heifers but not in other classes of cows.	1976	971143
a farming systems study of abortion in dairy cattle on the atherton tableland. 2. the pattern of infectious diseases.	the role of infectious agents on dairy farms on the atherton tableland in tropical north queensland was studied as part of a comprehensive investigation into the causes of bovine abortion. the prevalence of antibody in serums collected from 7 herds whose annual abortion rates ranged from 3% to 21% were as follows: leptospira hardjo 49.9% (426/853), l. pomona 0.4% (3/851), bovine virus diarrhoea (bvd) 33.7% (35/104). infectious bovine rhinotracheitis virus (ibr) 11.5% (12/105), akabane virus 92.2 ...	1989	2505741