健(jian)康(kang)的(de)雛(chu)雞(ji)都(dou)有(you)較(jiao)好(hao)的(de)母(mu)源(yuan)抗(kang)體(ti)，入(ru)室(shi)後(hou)初(chu)次(ci)免(mian)疫(yi)時(shi)間(jian)要(yao)結(jie)合(he)廠(chang)家(jia)提(ti)供(gong)的(de)免(mian)疫(yi)時(shi)間(jian)來(lai)做(zuo)。如(ru)果(guo)過(guo)早(zao)免(mian)疫(yi)接(jie)種(zhong)

，疫(yi)苗(miao)病(bing)毒(du)會(hui)被(bei)較(jiao)高(gao)的(de)母(mu)源(yuan)抗(kang)體(ti)中(zhong)和(he)，從(cong)而(er)使(shi)免(mian)疫(yi)效(xiao)果(guo)差(cha)；guochimianyijiezhong，huiyinmuyuankangtididudizaochengmianyikongdangeryinqijitifabing。ruguoqueshibuqingchumuyuankangtidegaodichengdu
，keyizaijiancehouquedingchumianshijian。

減少多種疫苗間的幹擾 同時使用兩種疫苗，一定要注意兩者之間是否有幹擾作用。比如新城疫Ixiyimiaoduijidouyimiaoyouganraozuoyong，chuanranxingfashinangyanyimiaoduixinchengyiyimiaoyouganraozuoyongdeng。yidingyaoanzhaoyimiaoshuomingzhongdezhuyishixiangjinxingjiezhong，jinliangjianshaoyimiaozhijiandeganraoxianxiang。

避免免疫麻痹現象的發生

過guo於yu頻pin繁fan的de免mian疫yi接jie種zhong，會hui使shi雞ji體ti的de免mian疫yi係xi統tong頻pin繁fan地di受shou到dao刺ci激ji，從cong而er造zao成cheng免mian疫yi應ying答da係xi統tong紊wen亂luan，產chan生sheng免mian疫yi麻ma痹bi，導dao致zhi免mian疫yi失shi敗bai。尤you其qi是shi在zai新xin城cheng疫yi疫yi苗miao緊jin急ji接jie種zhong時shi，盲mang目mu加jia大da接jie種zhong劑ji量liang，反fan複fu免mian疫yi接jie種zhong的de現xian象xiang太tai常chang見jian了le。考kao慮lv到dao雞ji群qun免mian疫yi抗kang體ti不bu整zheng齊qi，可ke在zai適shi當dang的de時shi候hou對dui個ge別bie雞ji用yong藥yao物wu調tiao理li，不bu一yi定ding非fei要yao反fan複fu接jie種zhong，造zao成cheng多duo數shu雞ji受shou害hai。