[A new syndrome of the new-born Charolais calf: the paralyzing gastroenteritis. Clinical reliefs and first epidemiology results]

abnormal behaviour beef cattle bovin de boucherie bovini da carne calves comportamento anormale comportamiento anormal comportement anormal diagnosi diagnosis diagnostic diarrea diarrhoea ganado de carne gastroenterite gastroenteritis sintomi symptome symptoms ternero veau virose viroses virosi virosis vitelli