多年來,臨床發現有許多肉仔雞常在雞群飼養至中後期,出現零星死亡、陸續發病、且很難控製的現象,常診斷為多種病原混合感染。
在實際的生產過程中,經常會有這樣的現象發生,即禽類的生長受阻、疫苗的免疫失效、多種疾病並發或者繼發感染,最終導致大批禽隻死亡或淘汰,給養殖者造成巨大的經濟損失。
臨床症狀
多年來,臨床發現有許多肉仔雞常在雞群飼養至中後期,出現零星死亡、陸續發病、qiehennankongzhidexianxiang,changzhenduanweiduozhongbingyuanhunheganran。jiqunlinchuangbiaoxianweifabingchuqi,zhengtizhuangtaizhengchang,zhishigebiedechuxianhuxidaozhengzhuang,xiaohuayichang。suihoufabingjizhiluxuzengduo,chuxianlingxingsiwang,houqisiwanglvzhujianshangsheng,meitianyuewei0.1%~0.3%,且病程越長,死亡率越高。投用一些藥物,死亡稍減,一旦停止用藥,幾天後又開始發病,1個~3個療程用藥後,再用各種藥物都收效甚微。常常是各種抗菌藥、抗病毒藥、營養藥、消毒藥、活菌製劑等用了個遍,藥費開支驟增,但結果並不理想。
上述現象在蛋雞、鴨、鵝及其他禽類養殖中也是普遍存在的。究其原因,主要是免疫抑製病的存在。
綜合防控措施
建jian立li健jian全quan生sheng物wu安an全quan體ti係xi。這zhe對dui免mian疫yi抑yi製zhi性xing疾ji病bing的de預yu防fang至zhi關guan重zhong要yao。具ju體ti來lai說shuo,就jiu是shi要yao將jiang消xiao毒du衛wei生sheng工gong作zuo貫guan穿chuan在zai養yang殖zhi生sheng產chan的de全quan過guo程cheng,並bing且qie將jiang其qi作zuo為wei最zui重zhong要yao的de工gong作zuo來lai進jin行xing。通tong過guo生sheng物wu安an全quan體ti係xi的de建jian立li與yu健jian全quan,可ke以yi有you效xiao降jiang低di養yang殖zhi場chang內nei汙wu染ran的de病bing原yuan微wei生sheng物wu,盡jin量liang減jian少shao甚shen至zhi是shi杜du絕jue家jia禽qin發fa生sheng感gan染ran的de概gai率lv。
zuohaojihuamianyi。zhenduimianyiyizhixingjibing,yidingyaoxuanzezuiweishiyideyimiao,bingqiezhidinghelidemianyichengxu,tongshizuohaoqitajibingdemianyijiezhonggongzuo。mianyijiezhongbingfeiyixiangyilaoyongyidegongzuo,bujinxuyaoyangzhizheyuyichongfendezhongshi,yeyaozuoweiyixiangzhongyaodegongzuojianchibuxie,zhiyouzheyang,cainengzhenzhengfahuimianyijiezhongdejijixiaoyong。
jiaqiangrichangsiyangguanli。henduoyingjiyinsudoukeyiyoufamouxiejibinghuozhejiajumouxiejibingdebingqing。weici,zairichangsiyangyuguanliguochengzhong,jinliangjianshaojiaqinqundeyingjiyinsu,ruyouxiaobimiansiweifameibianzhihuozheshihanyoudujundusudesiliao,zuohaotongfenghuanqigongzuo,youxiaogaishankongqidezhiliang,jiangdijiaqinshenghuochangsuodeanqinongdu,baochisheneihuozhequanneiganzao,weichizuiweishiyidesiyangmidudeng。yucitongshi,yidingyaozuohaoyibingdejiancegongzuo,jinkenengzuodaoquanjinquanchu,quebaoxiaodugongzuodekexuehuayuguifanhua。
提高家禽的營養水平。通過提高家禽的蛋白質、氨基酸、維wei生sheng素su和he微wei量liang元yuan素su的de水shui平ping,有you效xiao提ti高gao飼si料liao的de質zhi量liang,保bao證zheng充chong足zu的de飲yin水shui等deng措cuo施shi,都dou可ke以yi有you效xiao提ti高gao家jia禽qin對dui一yi些xie病bing原yuan微wei生sheng物wu的de抵di抗kang能neng力li,從cong而er減jian少shao繼ji發fa感gan染ran的de發fa生sheng概gai率lv,降jiang低di因yin此ci而er產chan生sheng的de各ge種zhong損sun失shi。
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