Blackleg seldom affects cattle older than 2 years of age, most likely due to immunity induced by vaccines or natural exposure. However, sporadic cases do occur in cattle older than 2 years and are often associated with the reuse of needles for multiple injections.lackleg seldom affects cattle older than 2 years of age, most likely due to immunity induced by vaccines or natural exposure. However, sporadic cases do occur in cattle older than 2 years and are often associated with the reuse of needles for multiple injections.
Afton: a river in Scotland, for my nature theme. Afton: a Swedish word that means afternoon or evening, for Bjorkâs Scandinavian feel. Afton: a name ending with an ân,â for my weird enjoyment of names ending with ânâ. And âSweet Aftonâ, one of our favorite songs.
Etymology & Historical Origin-Brenton. Brenton is the transferred use of an old English surname derived from a place name (given to a few different medieval villages variously recorded as Brinton, Brington or Bryneton).he name ultimately means âBryniâs homesteadâ from Bryni â an ancient Anglo-Saxon personal name originating from the Olde English word âbryneâ meaning âfire, flameâ â and âtunâ which is Olde English for âfarm, homestead, townâ. Brenton therefore means âfire townâ.