為了避免購進低質雛雞造成損失,廣大養雞戶在進雛雞時一定要注意以下幾方麵。
一、yaonongqingmaichujidezhongjichangshifoushizifanzifu。youxiezhongjifuhuachang,zijimeiyouzhongjisiyangchang,kaocongshehuishangshougouzhongdanjinxingfuhua。zheyangfuhuachulaidezhongji,youyuzhongdanlaiyuanza,zaishengchanguochengzhongyijingbeifangyibuyandezhongjichuizhichuanbolegezhongbingyuan,fuhuachulaishijiuyijingshidaibingde,yangzheyangdejijinhouyidinghuibuduanfabing。yinci,gouchujishiyidingyaocongzhengguizhongjichangjinji。
二、對dui調tiao進jin的de雛chu雞ji一yi定ding要yao進jin行xing嚴yan格ge淘tao汰tai,不bu能neng帶dai病bing養yang殖zhi。對dui雛chu雞ji進jin行xing嚴yan格ge淘tao汰tai,對dui養yang殖zhi者zhe來lai說shuo最zui合he算suan。因yin為wei雛chu雞ji帶dai病bing養yang殖zhi,養yang至zhi生sheng長chang中zhong後hou期qi最zui易yi發fa病bing死si亡wang,這zhe時shi飼si料liao、人工、醫(yi)藥(yao)等(deng)費(fei)用(yong)已(yi)消(xiao)耗(hao)很(hen)多(duo),一(yi)經(jing)淘(tao)汰(tai)損(sun)失(shi)就(jiu)比(bi)較(jiao)大(da),而(er)且(qie)病(bing)雛(chu)在(zai)雞(ji)群(qun)中(zhong)還(hai)會(hui)進(jin)一(yi)步(bu)傳(chuan)染(ran)其(qi)他(ta)雞(ji),因(yin)而(er)在(zai)雛(chu)雞(ji)階(jie)段(duan)就(jiu)應(ying)進(jin)行(xing)嚴(yan)格(ge)的(de)淘(tao)汰(tai),這(zhe)樣(yang)做(zuo)經(jing)濟(ji)損(sun)失(shi)最(zui)小(xiao)。建(jian)議(yi)養(yang)殖(zhi)者(zhe)在(zai)雛(chu)雞(ji)5日齡前後使用 1次免疫增強劑,這樣個別的帶病雛雞會出現脫肛現象,養殖者要對其毫不猶豫地進行淘汰。
三、對dui雞ji新xin城cheng疫yi的de免mian疫yi就jiu高gao不bu就jiu低di。目mu前qian,各ge地di的de種zhong雞ji場chang管guan理li水shui平ping參can差cha不bu齊qi,新xin城cheng疫yi母mu源yuan抗kang體ti高gao低di不bu一yi,再zai加jia之zhi其qi他ta病bing原yuan的de混hun合he感gan染ran,使shi新xin城cheng疫yi免mian疫yi失shi敗bai的de現xian象xiang時shi有you發fa生sheng,因yin此ci,對dui雛chu雞ji新xin城cheng疫yi的de免mian疫yi應ying就jiu高gao不bu就jiu低di。免mian疫yi程cheng序xu:1日齡新城疫Ⅳ係苗與H120或克隆30與H120雙聯苗點眼滴鼻;10日齡用新城疫I係苗點眼滴鼻;20日齡用新城疫I係苗注射。對嚴重汙染的商品雞場在35日齡增加1次I係苗噴霧免疫,使強毒失去繁殖與排毒機會,使環境得到淨化。這裏應指出,雞新城疫的免疫,應提倡使用I係苗。有人擔心 I係苗應激性強,不敢使用。I係苗雖然應激性強一些,可保護作用也強,其他型疫苗對目前的新城疫經常防不住,權衡利弊還是應使用I係苗。
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