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yang xi que fa zheng de zhen zhi
Author(s): 
Pages: 33
Year: Issue:  3
Journal: Liaoning Journal of Animal Husbandry and Veterinar

Abstract: <正> 羊硒缺乏症又称白肌病。该病的特征是发病突然,多数病羊体温不高或下降,心肌、骨骼肌及肝脏变性坏死,常伴有运动功能障碍,幼羊发病率和死亡率较高,尤其食欲好、膘情好的羊易发病和死亡。1 临床症状 精神沉郁,食欲减退或废绝,卧地嗜睡,腹泻。心脏功能减退,心跳快而无力,每分钟达120次以上,呼吸促迫,每分钟达100次以上。患病较轻者走路后躯摇摆或跛行,重者后肢颤抖,强行驱赶步态僵硬,关节不能伸直并不时发出痛苦的叫声。2 剖检变化 心肌色淡,有条状变性,呈虎斑心样,心包液明显增多。肝脏呈花肝样并有巨块状坏死。骨骼肌,尤其是深部肌肉变性和蜡样坏死。肠淋巴结出
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