羊(yang)餘(yu)氨(an)中(zhong)毒(du)的(de)一(yi)般(ban)症(zheng)狀(zhuang)為(wei)精(jing)神(shen)呆(dai)滯(zhi),步(bu)態(tai)踉(liang)蹌(qiang),食(shi)欲(yu)減(jian)退(tui),反(fan)芻(chu)減(jian)少(shao)甚(shen)至(zhi)停(ting)止(zhi),口(kou)內(nei)涎(xian)液(ye)分(fen)泌(mi)增(zeng)多(duo)並(bing)垂(chui)流(liu)於(yu)體(ti)外(wai)。嚴(yan)重(zhong)中(zhong)毒(du)的(de)患(huan)羊(yang)呻(shen)吟(yin)不(bu)安(an),全(quan)身(shen)肌(ji)肉(rou)震(zhen)顫(chan),動(dong)作(zuo)失(shi)調(tiao),伴(ban)有(you)前(qian)肢(zhi)麻(ma)痹(bi)、瘤胃鼓氣等症狀,口內過度流涎並伴有大量泡沫,呼吸急促,最後倒地搐搦窒息而死。慢性中毒的患羊還表現肺水腫、腎炎或尿道炎以及代謝紊亂,其臨床症狀為尿頻而有疼痛感,從尿道中排出膿性分泌物,公羊生殖器外露且呈水腫症狀。
隨sui著zhe秸jie稈gan養yang羊yang技ji術shu在zai農nong村cun的de普pu及ji推tui廣guang,養yang羊yang戶hu已yi認ren識shi到dao氨an化hua飼si草cao是shi喂wei羊yang的de明ming智zhi選xuan擇ze。但dan在zai使shi用yong氨an化hua飼si草cao過guo程cheng中zhong,一yi部bu分fen養yang羊yang戶hu對dui氨an化hua飼si草cao處chu理li不bu當dang,致zhi使shi羊yang食shi入ru或huo吸xi入ru過guo量liang的de餘yu氨an,引yin起qi餘yu氨an中zhong毒du,造zao成cheng不bu必bi要yao的de經jing濟ji損sun失shi。
一旦發現羊發生餘氨中毒,應立即停喂氨化飼草,並對中毒患羊實施緊急治療措施,即將穀氨酸鈉20~40毫升加入200~400毫升10%putaotangzhusheyegeiyangjingmaidizhu,shizhiyuxueyezhongdeanjiehechengwududeguanxianansuiniaoyepaichutiwai。shushiruanhuasicaoerzhiyuanzhongdudehuanyang,kepeiheshiyongshiyongcu0.1~0.2千克對5~8beishuigeiyangneifu,yijiangdiliuweineirongwudesuanjiandu,zuzhiyuanjixuzailiuweizhongfenjie,bimiananbeixishoujifashengjianduzheng。shumanxinganzhongdudehuanyang,chucaiyongshangshuyaowuzhiliaocuoshiwai,haixugeiyangjirouzhushekangshengsu(如青黴素、鏈黴素等),防止炎症加重以及發生繼發感染。如患羊的中毒症狀經過治療得以穩定,並處於恢複期,需給羊內服健胃製劑(如陳皮酊、番木鱉酊等),以利患羊瘤胃內的微生物係得以恢複,促進羊的康複。
要避免和減少羊食用氨化飼草發生餘氨中毒,必須針對引起羊食用氨化飼草發生餘氨中毒的原因采取有效的預防措施:一(yi)是(shi)根(gen)據(ju)不(bu)同(tong)季(ji)節(jie)的(de)氣(qi)溫(wen)條(tiao)件(jian),嚴(yan)格(ge)掌(zhang)握(wo)好(hao)氨(an)化(hua)飼(si)草(cao)的(de)發(fa)酵(jiao)成(cheng)熟(shu)時(shi)間(jian),確(que)保(bao)氨(an)化(hua)飼(si)草(cao)發(fa)酵(jiao)成(cheng)熟(shu)。二(er)是(shi)氨(an)化(hua)飼(si)草(cao)發(fa)酵(jiao)成(cheng)熟(shu)後(hou)需(xu)開(kai)封(feng)散(san)氨(an)後(hou)再(zai)喂(wei)羊(yang),一(yi)般(ban)開(kai)封(feng)散(san)氨(an)時(shi)間(jian)以(yi)晴(qing)天(tian)在(zai)10小時以上,陰雨天在24小時以上,且以散氨後氨化飼草僅略有氨味,不刺人眼鼻時喂羊為佳。三是氨化池、anhuasicaoduifangchuyingyuyangdesiyangfangyangegekai,anhuasicaosuiyongsuiqu,bingbaozhengsiyangfangneikongqiliuchang。sishiyouyuweiduannaidegaoyangliuweineiweishengwuxishangweiwanquanxingcheng,yaoshenzhongsiweianhuasicao。
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