蛋dan雞ji脫tuo肛gang在zai雞ji開kai產chan時shi就jiu會hui發fa生sheng,並bing延yan續xu整zheng個ge產chan蛋dan期qi,但dan由you於yu大da多duo數shu養yang殖zhi戶hu不bu清qing楚chu脫tuo肛gang原yuan因yin,致zhi使shi問wen題ti得de不bu到dao徹che底di解jie決jue,嚴yan重zhong影ying響xiang了le養yang雞ji的de經jing濟ji效xiao益yi。為wei此ci,筆bi者zhe提ti出chu蛋dan雞ji脫tuo肛gang病bing因yin分fen析xi與yu防fang治zhi措cuo施shi,僅jin供gong養yang雞ji戶hu參can考kao。
開(kai)產(chan)前(qian)光(guang)照(zhao)時(shi)間(jian)長(chang),使(shi)得(de)蛋(dan)雞(ji)過(guo)早(zao)開(kai)產(chan)。由(you)於(yu)開(kai)產(chan)前(qian)光(guang)照(zhao)時(shi)間(jian)長(chang),導(dao)致(zhi)雞(ji)體(ti)成(cheng)熟(shu)尚(shang)未(wei)達(da)到(dao)而(er)性(xing)成(cheng)熟(shu)已(yi)完(wan)成(cheng),造(zao)成(cheng)蛋(dan)雞(ji)提(ti)前(qian)開(kai)產(chan)而(er)脫(tuo)肛(gang)。因(yin)此(ci),育(yu)成(cheng)雞(ji)階(jie)段(duan)光(guang)照(zhao)應(ying)控(kong)製(zhi)在(zai)9小時以內,開產後逐漸把光照增加到14小時~16小時。
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產蛋雞日糧中維生素A和維生素E不足,生殖道發生炎症,造成輸卵管狹窄而引起脫肛。因此,在產蛋雞日糧中添加充足的維生素A和維生素E能有效解決生殖道發炎,防止雞體抵抗力下降而引起輸卵管和泄殖腔發生炎症,從而解決輸卵管狹窄引起的脫肛。
腹fu瀉xie脫tuo水shui導dao致zhi輸shu卵luan管guan黏nian膜mo潤run滑hua作zuo用yong降jiang低di。長chang時shi間jian的de腹fu瀉xie使shi蛋dan雞ji的de體ti內nei水shui分fen消xiao耗hao過guo大da,嚴yan重zhong的de達da到dao脫tuo水shui程cheng度du,致zhi使shi輸shu卵luan管guan黏nian膜mo不bu能neng有you效xiao地di分fen泌mi潤run滑hua液ye,生sheng殖zhi道dao幹gan澀se,雞ji產chan蛋dan時shi強qiang烈lie努nu責ze造zao成cheng脫tuo肛gang。因yin此ci,在zai生sheng產chan中zhong應ying找zhao出chu腹fu瀉xie的de飼si料liao或huo疾ji病bing原yuan因yin,實shi行xing標biao本ben兼jian治zhi以yi恢hui複fu各ge器qi官guan的de正zheng常chang生sheng理li功gong能neng來lai解jie決jue脫tuo肛gang。
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雞群擁擠、衛生條件差。雞舍內氨氣濃度、飼養密度較高,空氣環境惡劣,造成母雞產蛋脫肛。因此,要注意雞舍飼養密度和衛生,加強雞舍通風換氣以防脫肛。
蛋雞處於產蛋高峰期,連續產蛋導致輸卵管內分泌液減少,潤滑作用降低。因此,要供應蛋雞充足的飲水,從而降低脫肛雞的數量。
意外驚嚇。處於產蛋狀態的雞因應激而使外翻的泄殖腔不能複位造成脫肛。因此,應盡量減少噪音等應激,嚴禁犬、貓、鼠進入雞舍致使蛋雞發生驚嚇而引起脫肛。
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