不論蛋種雞、rouzhongji,haishiguoneiqitadifangpinzhongji,chandanlvbingbudaibiaozhongdanliyonglv,shengchanzhonghuodejinkenengduodehegezhongdanyejiuyiweizhenengfuchugengduodejiankangchuji。benwengenjuzhongjidexixingtedian,congzhongdandeshouji、處理、消毒和入孵等日常管理角度分析,講述種蛋的合理利用,從而獲得更高的經濟效益。
一、種蛋的生產和收集
平養種雞在實際生產過程中,有必要提前訓練種母雞使用產蛋箱,這是減少地麵蛋的有效方法。在育雛、育成期,為20%的種母雞提供棲木,訓練種母雞養成上棲木的習慣。墊料的厚度不要過厚,一般在5~8limiweiyi,guohouyoukenenghuiyoudaomujichandimiandan。chandanxiangzaihequnqianyizhouhuoliangzhoutaijinjishe,pingjunmeisizhijishiyongyigechandanwo。chandanxianggaodikeyijinxingtiaojie,baitianjiangqimufangxia,wanshangzaixidengzhiqianyaoguanbichandanxiang。bimianzhongjizaichandanxiangguoye,wuranchandanxiang。kaishichandanshi,keyijiangjiadanfangjinchandanxiangyoudaozhongmujijinruchandan,gangkaishichandan,shuliangbijiaoshao,keyizanshibuyaoshouji,tongyangqidaoyoudaozuoyong。meitiandangsiyangyuanjinrujisheshi,shouxianshoujidimiandan,yaoyongzhuanmengudingdedanpan,buyaoyuhegezhongdanhunfang。
yaoqiuchandanxiangdongnuanxialiang,gaodushiyi,chandanxiangneiyaopushangsongruandemuhuahuodaoke,bingqieyaodingqijinxinggenghuan。zaixiaji,yaoqiuchandanxiangneiwendubunengguogao,yaofangzhizeifengzhijiechuidaochandanxiangnei。
針zhen對dui籠long養yang種zhong雞ji,種zhong蛋dan的de利li用yong率lv比bi平ping養yang要yao稍shao微wei好hao一yi些xie,籠long養yang種zhong雞ji會hui降jiang低di種zhong蛋dan的de帶dai菌jun率lv和he種zhong蛋dan受shou汙wu染ran的de程cheng度du,但dan如ru果guo管guan理li不bu慎shen同tong樣yang會hui造zao成cheng種zhong蛋dan破po碎sui率lv增zeng加jia。在zai歐ou美mei等deng發fa達da國guo家jia,都dou倡chang導dao動dong物wu性xing福fu利li待dai遇yu,種zhong雞ji生sheng活huo在zai比bi較jiao寬kuan鬆song舒shu適shi的de環huan境jing中zhong,籠long養yang的de種zhong雞ji同tong樣yang能neng享xiang受shou較jiao高gao的de福fu利li待dai遇yu,種zhong蛋dan能neng平ping穩wen的de下xia滑hua到dao傳chuan輸shu帶dai上shang並bing輸shu送song到dao種zhong蛋dan分fen級ji集ji蛋dan處chu。在zai國guo內nei飼si養yang水shui平ping參can差cha不bu齊qi,很hen多duo籠long具ju設she計ji比bi較jiao簡jian陋lou,大da多duo數shu沒mei有you實shi現xian自zi動dong化hua程cheng度du,完wan全quan靠kao人ren工gong來lai收shou集ji種zhong蛋dan。
有條件的種雞場,籠養種雞要實行合理的飼養密度,增加種蛋的收集次數,一般上午產蛋較為集中,最好在上午能收集3~4次,下午3點以後還要進行人工授精,故收集2~3ci,wanshangzaiguandengzhiqianhaiyaozengjiayicishouji。rouzhongjitizhongjiaoda,zaidianwangshangfushangyicengtezhizhuanyesuliaodianwang,keyidadajiangdizhongdandeposuilv,hainengjianshaozhongjidetuibinghexiongnangyandefashenglv。zaishoujizhongdanshi,yaoqubiefenleishoujizhongdan,zuixianshoujihegezhongdan,youwurandezhongdanyaozuihoushouji,ruandan、畸形蛋和雙黃蛋要單獨用盤收集,汙染的種蛋用鋼絲球、砂紙和幹布正確處理後單獨放盤中,最後做到單獨上孵,不能與合格種蛋混放孵化,以免造成合格種蛋的汙染。
二、種蛋的處理和消毒
收集好合格種蛋和地麵蛋、髒蛋後,要分門別類進行處理。合格種蛋要求在50keyishang,xingzhuangguize,dankeyansezhengchang,meiyouliehen。zaichulizangdanhedimiandanshiyaotebiezhuyishengwuanquankongzhi,bunenghehegezhongdanzaiyiqichuli,keyongjutiao、刀片或鋼絲球等進行輕拭。如果汙染麵積大於1平方厘米,就不要進行處理上孵。
種蛋的消毒方法分為無水消毒法和有水消毒法兩種。其中無水消毒法包括臭氧消毒法、紫外線消毒法和福爾馬林甲醛消毒熏蒸法。有水消毒法經常用於髒蛋和地麵蛋的處理,包括浸泡法、洗滌法和噴灑法。
其中種蛋的消毒以高錳酸鉀和甲醛熏蒸法比較常用,消毒效果也是最好的。需要大小合適、mibidexunzhenggui,weilechongfenhunhejunyun,wangwangzaixunzhengguideshangfanganzhuangpaifengshan。zaixiceliangxunzhengguidetiji,jisuanfuermalinhejiaquandeyongliang。yibanshiyongsanbeiliangjinxingxunzheng,meilifangmiyong43ml甲醛和21g高錳酸鉀,熏蒸的時間在20~25分鍾。操作人員要戴好防毒麵具和膠皮手套做好安全防護,切勿將高錳酸鉀倒在甲醛上麵,以免發生噴濺。
三、種蛋的儲存和運輸
種蛋熏蒸好後,暫時放在蛋庫中保存。用於儲存種蛋的蛋庫一定要與髒蛋、地麵蛋分開存放,絕不能放在一起。蛋庫的麵積要足夠大,可用於儲存高峰期時2~3天tian的de種zhong蛋dan量liang。要yao求qiu密mi閉bi和he隔ge熱re,足zu夠gou的de加jia熱re和he製zhi冷leng能neng力li,保bao證zheng少shao量liang的de換huan氣qi量liang,蛋dan庫ku內nei有you足zu夠gou的de氧yang氣qi,並bing且qie要yao及ji時shi排pai除chu二er氧yang化hua碳tan等deng廢fei氣qi。即ji使shi經jing過guo處chu理li的de髒zang蛋dan、dimiandan,yeyaoyuhegezhongdanfenkaichucun,zuohaoteshubiaoji,fenkaishangfu。zhongdanzairukuzhiqianyaobiaomingchandanriqi,yibianquedingshangfudeshijian。dankuneidehuanjingtiaojianzhiguanzhongyao,qiebunengmahudayi。wendushichucundeshijianerding,yibandechucunshijiandouzai4~6天,儲存溫度17℃,濕度應該介於70%到80%,dankudejiashihenyoujiangjiu,qiebuyaowangdimiansashui,yinweiguodadeganshibianhuagengyouliyumeijundeshengchang。jiashikeyichangshizaidankuzhoubianqiangbixuanguashimaojinhuoshiyongjiashiqi。meitianyaojiludankuneidewenduheshidu,zuodaoxinzhongyoushu。zhongdankudeweishengyaodingqidasao,qingxixiaodudankusuoyoudeshebei。
種蛋在收集後,要使用專門的集蛋箱運輸,一般起到保溫、防汙染和減輕種蛋震蕩等作用,運輸一定要輕、慢;運蛋車內應該與蛋庫的儲存條件基本相同,具備相應的製冷與加熱係統、溫度控製係統和通風換氣係統。
四、種蛋的預溫和上孵
zaishangfuzhongdanshi,wangwangrongyihushiyigexiaowenti,najiushicongzhongdanlengquewendudaoshangfuwenduyaojingguoyuwendeguocheng,bunengzhijiejiangzhongdanjinxingshangfu,nayangzhongdanjiuhuichuhan,daozhichuchulvxiajiang。zairufuzhiqian,zaiganqiuwendu37.5℃和濕球溫度30℃的條件下,預孵化6個小時。儲存期超過4天的種蛋,每多一天,提前1小時進行預溫。青年種雞的種蛋,可提前4~6小時進行預溫。
五、小結
在種蛋到雛雞的蛻變,雖然僅有短短的21天(tian),但(dan)是(shi)一(yi)定(ding)要(yao)注(zhu)意(yi)種(zhong)蛋(dan)的(de)日(ri)常(chang)管(guan)理(li)工(gong)作(zuo),切(qie)不(bu)要(yao)因(yin)小(xiao)失(shi)大(da),一(yi)定(ding)要(yao)從(cong)細(xi)節(jie)做(zuo)起(qi),細(xi)節(jie)決(jue)定(ding)成(cheng)敗(bai)。髒(zang)蛋(dan)和(he)地(di)麵(mian)蛋(dan)最(zui)好(hao)不(bu)要(yao)上(shang)孵(fu),以(yi)免(mian)影(ying)響(xiang)出(chu)雛(chu)率(lv)和(he)健(jian)雛(chu)率(lv)。
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