Mature herpes virions vary from 120–260 nm in size. The core of the virion comprises double-stranded DNA held inside a 115–130 nm icosahedral capsid. The nucleocapsid is surrounded by a dense...
A first lactation, 28-month-old Holstein dairy cow was presented at a routine fertility visit at 47 days in milk for ‘oestrus not observed’. The cow had been examined at a previous routine fertility...