因真菌毒素主要作用於機體的外周血管,牛發生黴變飼草中毒可使機體局部血管發生痙攣性收縮,導致血管壁增厚、管腔狹窄,引起血流緩慢和血栓形成,牛發生黴變飼草中毒後即會出現局部(主要是四肢和蹄部)水腫、出血與肌肉變形、huaisi,ruojifaxijunganran,zehuishiqibingqingjinyibuehua,yanzhongzhekeshihuanniuqiuguanjieyixiafulan。yinci,yibanniufashengmeibiansicaozhongduchangfabingturan,huanniubutaijiangying,zaixiguanchahuifaxianhuanniutiguanweizhong,qieaobupifuyouhengxingliexi,weire,chumoshihuanniuyoutengtonggan。shurihou,zhongzhangbuweihuimanyanzhiwanguanjiehuofuguanjie,huanniuxingzoukunnan。suihou,zhongzhangbuweipifubianliang,biaomianyoudanhuangsetoumingyetishenchu。ruojixufazhan,zezhongzhangbuweipifupokuihou,huidaozhichuxue、化膿、huaisi,yizhichuangmianchangjiubuyu,xingchounanwen。yanzhongzhehaikenenghuidaozhitixiatuoluo,qieyoubufenhuanniudeerjianheweijianbuweihuichuxianganxinghuaisi,pifuganying,bingchengxiananheise。
chunjiyufangniumeibiansicaozhongdudegenbencuoshishiyanjinyongmeibiansicaoweiniu。yangzhichanghuduisiweiniudesicaojinxingganzaochulihou,yingjishijiangsicaochucunyugaozaochu,bingzuohaofangzhifengchuiyulincuoshi。quyongcaoduosicaoweiniushi,yingzhuyijianzhasicaodezhiliang,rufaxiansicaofashengqingweimeibianshi,yingjishijinxingqumeichuli,kexianjiangsicaojinxingbaoshaihoujinxingfanfudepaida,shiqichuqumeijun,yekejiangqingweimeibiandesicaoyongjianshui(1.5%氫氧化鈉或草木灰水等)進行處理或用清水進行反複多次浸泡,直到處理液清澈無色後,方可用於喂牛;如(ru)發(fa)現(xian)飼(si)草(cao)有(you)結(jie)塊(kuai)黴(mei)爛(lan)現(xian)象(xiang)時(shi),則(ze)應(ying)及(ji)早(zao)將(jiang)飼(si)草(cao)棄(qi)之(zhi),不(bu)可(ke)用(yong)於(yu)喂(wei)牛(niu)。同(tong)時(shi)養(yang)殖(zhi)場(chang)戶(hu)在(zai)春(chun)季(ji)飼(si)喂(wei)牛(niu)群(qun)時(shi),應(ying)隨(sui)時(shi)注(zhu)意(yi)觀(guan)察(cha)牛(niu)群(qun)的(de)動(dong)態(tai),如(ru)一(yi)旦(dan)發(fa)現(xian)有(you)部(bu)分(fen)牛(niu)出(chu)現(xian)四(si)肢(zhi)、蹄部的水腫、出chu血xue等deng病bing變bian時shi,則ze更geng應ying仔zai細xi檢jian查zha診zhen斷duan,若ruo確que定ding牛niu屬shu於yu黴mei變bian飼si草cao中zhong毒du症zheng狀zhuang時shi,則ze應ying及ji時shi更geng換huan飼si草cao,並bing在zai給gei牛niu飼si喂wei優you質zhi青qing幹gan草cao的de同tong時shi,適shi時shi給gei牛niu補bu飼si發fa芽ya飼si料liao、白菜、蘿卜和胡蘿卜等青綠多汁飼料,以利於給牛補充維生素,並增進牛的食欲,緩解牛的中毒症狀。
對(dui)已(yi)發(fa)生(sheng)中(zhong)毒(du)症(zheng)狀(zhuang)的(de)患(huan)牛(niu)應(ying)在(zai)改(gai)善(shan)其(qi)飼(si)養(yang)管(guan)理(li)的(de)同(tong)時(shi),及(ji)時(shi)采(cai)取(qu)治(zhi)療(liao)措(cuo)施(shi)。在(zai)患(huan)牛(niu)的(de)發(fa)病(bing)初(chu)期(qi),為(wei)促(cu)進(jin)局(ju)部(bu)的(de)血(xue)液(ye)循(xun)環(huan),可(ke)對(dui)患(huan)牛(niu)的(de)患(huan)肢(zhi)進(jin)行(xing)熱(re)敷(fu)按(an)摩(mo),一(yi)般(ban)每(mei)天(tian)熱(re)敷(fu)按(an)摩(mo)2次-3次,每次30分鍾左右,也可配合用白胡椒麵20克-30克兌白酒200毫升-300毫升混合後,一次給患牛內服;對皮膚破潰的患牛,應及時用0.1%新潔爾滅溶液清洗創麵,並在創麵撒布外用磺胺類藥,也可配合使用抗菌素藥物進行治療;為了促進患部肉芽組織及上皮組織增生,加快瘡口愈合,可用紅黴素軟膏塗敷患部,每天塗敷1次-2次;對病情嚴重的患牛,應配合靜脈注射5%葡萄糖注射液1000毫升-2000毫升和10%維生素C注射液20毫升-40毫升,同時並注意防止患牛發生繼發感染。
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