Sarcina-like bacteria associated with bloat in young lambs and calves

Sarcina species are fastidious Gram-positive anaerobic bacteria that occur in cubical packets of eight or more cells. In 2006 to 2007, they were associated with cases of acute abomasal bloat in young lambs and calves. Two incidents were in lambs aged three to six weeks that were found dead, with one or two cases in each of a group of 15 and 100 lambs. Three incidents were recorded in small groups of calves up to 10 days of age, two cases in each incident, with the calves found dead or dying after a short illness characterised by bloat. Their gross lesions included emphysema and oedema of the abomasal wall, mucosal hyperaemia and haemorrhage, and rupture of the abomasum. Histological lesions included abomasitis with congestion, haemorrhage, emphysema and oedema. Bacteria characteristic of Sarcina species were observed in sections associated with the superficial mucosa of these cases, but the bacteria were not detected in cultures.     

黑龙江省部分地区牛弓形虫病血清学调查

<正>弓形虫病是由肉孢子虫科(Sarcocystidae)弓形虫属(Toxoplasma)的刚地弓形虫(Toxoplasma gondii)引起的一种人和多种动物共患寄生虫病。弓形虫病宿主种类十分广泛,目前已证实猫及猫科动物为其终末宿主,人、畜、禽和多种野生动物对弓形虫均具易感性。给人类健康和畜牧业发展带来很大危害和威