Now showing items 1-2 of 2
Pneumonia and pleurisy in sheep : studies of prevalence, risk factors, vaccine efficacy and economic impact : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy at Massey University, Palmerston North, New Zealand
(Massey University, 2006)
The objectives of this thesis were to investigate patterns of lamb pneumonia prevalence of a large sample of New Zealand flocks including an investigation of spatial patterns, to evaluate farm-level risk factors for lamb ...
Campylobacter abortion in sheep : a study of strain types and vaccine protection : a thesis presented in fulfilment of the requirements for the degree of Doctor of Philosophy in Veterinary Pathology at Massey University, Palmerston North, New Zealand
(Massey University, 2003)
The bacteria Campylobacter fetus subsp. fetus and C. jejuni are important causes of abortion in sheep, and the majority of Campylobacter sheep abortion in New Zealand is associated with C. fetus subsp. fetus. Campylovexin® ...