While experts struggle to pinpoint the original source of the Mycoplasma bovis outbreak, New Zealand Agriculture Minister Damien O'Connor says resources may be better spent on bio security systems that prevent similar outbreaks. Last May the New Zeland government announced it would try to eradicate the disease, which can cause mastitis and abortions in cows, ordering a phased culling program that's expected to cost close to US$ 700 million.