精(jing)液(ye)品(pin)質(zhi)的(de)好(hao)壞(huai)是(shi)決(jue)定(ding)種(zhong)蛋(dan)受(shou)精(jing)率(lv)的(de)先(xian)決(jue)條(tiao)件(jian),而(er)家(jia)禽(qin)飼(si)養(yang)條(tiao)件(jian)的(de)好(hao)壞(huai)又(you)直(zhi)接(jie)影(ying)響(xiang)到(dao)精(jing)液(ye)的(de)品(pin)質(zhi)和(he)數(shu)量(liang),因(yin)此(ci)家(jia)禽(qin)的(de)飼(si)養(yang)管(guan)理(li)非(fei)常(chang)重(zhong)要(yao)。
一、育成期的管理原則
zaigongjideguanlizhongyundongshihenzhongyaodeyigefangmian,zhonggongjiyeshiruci。yuchengshiqiyoutiaojiandejichangzuihaobuyaobagongjihemujiyiqifangzaizhongchulongzhongsiyang,gongjidetixingjiaoda,shengchangfayuyebimujikuai,zhongchulongkongjianxiaxiao,gongjigenbenmeiyouhuodongdekongjian。yinci,gongjiyuchushikehemujiyiqilongyang,zhongchujieduandaoruchandanjishezhiqianyingyizhipingyang。zhonggongjisiyangmidubunengguoda,yingbaozhenggongjiyouzugoudehuodongkongjian,ranggongjidetizhizaichongfenyundongzhongjiaqiang,gongjidetizhongkelvechaoguobiaozhuntizhong,danbukediyubiaozhuntizhong。ruguoyuchu、育成期公雞都采用平養方式,每隻雞都有足夠的活動空間,成雞階段公雞的體質發育就好,20周zhou齡ling左zuo右you合he格ge的de公gong雞ji就jiu多duo,精jing液ye數shu量liang和he品pin質zhi就jiu可ke以yi得de到dao保bao證zheng,抵di抗kang外wai界jie應ying激ji能neng力li就jiu強qiang,采cai精jing階jie段duan淘tao汰tai死si亡wang率lv就jiu低di,種zhong蛋dan受shou精jing率lv就jiu相xiang應ying較jiao高gao。應ying該gai指zhi出chu的de是shi有you的de雞ji場chang忽hu視shi這zhe方fang麵mian工gong作zuo,不bu注zhu意yi育yu雛chu、育成期的管理,雖然在成雞階段給予很高的營養,即使喂給雞蛋黃、魚yu粉fen等deng富fu含han動dong物wu蛋dan白bai質zhi類lei飼si料liao仍reng然ran不bu會hui有you很hen好hao的de效xiao果guo。在zai經jing過guo選xuan擇ze和he精jing液ye品pin質zhi檢jian查zha進jin入ru成cheng雞ji舍she之zhi後hou,為wei了le減jian少shao爭zheng鬥dou,公gong雞ji最zui好hao單dan獨du飼si養yang。單dan籠long飼si養yang的de種zhong公gong雞ji其qi采cai精jing量liang、精子密度、體重、采精成功率、精液清潔度、公(gong)雞(ji)存(cun)活(huo)率(lv)等(deng)方(fang)麵(mian)均(jun)高(gao)於(yu)雙(shuang)養(yang)或(huo)一(yi)籠(long)三(san)養(yang)。在(zai)采(cai)精(jing)階(jie)段(duan),人(ren)工(gong)采(cai)精(jing)對(dui)公(gong)雞(ji)應(ying)激(ji)很(hen)大(da),頻(pin)繁(fan)的(de)采(cai)精(jing)刺(ci)激(ji)常(chang)導(dao)致(zhi)公(gong)雞(ji)的(de)食(shi)欲(yu)降(jiang)低(di)。種(zhong)公(gong)雞(ji)的(de)水(shui)槽(cao)應(ying)堅(jian)持(chi)每(mei)日(ri)擦(ca)洗(xi)幹(gan)淨(jing),少(shao)量(liang)多(duo)次(ci)加(jia)入(ru)幹(gan)淨(jing)的(de)清(qing)水(shui)。料(liao)槽(cao)添(tian)料(liao)要(yao)少(shao)放(fang)勤(qin)添(tian),飼(si)料(liao)一(yi)定(ding)不(bu)要(yao)發(fa)黴(mei)變(bian)質(zhi)。飼(si)料(liao)中(zhong)黃(huang)曲(qu)黴(mei)的(de)含(han)量(liang)超(chao)標(biao)對(dui)精(jing)液(ye)的(de)品(pin)質(zhi)影(ying)響(xiang)最(zui)大(da)。在(zai)采(cai)精(jing)的(de)開(kai)始(shi)階(jie)段(duan),飲(yin)用(yong)複(fu)合(he)維(wei)生(sheng)素(su)可(ke)減(jian)緩(huan)應(ying)激(ji)反(fan)應(ying)。
二、公雞飼料的營養成分
一(yi)般(ban)飼(si)養(yang)育(yu)種(zhong)手(shou)冊(ce)上(shang)都(dou)沒(mei)有(you)標(biao)明(ming)公(gong)雞(ji)飼(si)料(liao)的(de)營(ying)養(yang)成(cheng)分(fen),多(duo)數(shu)按(an)照(zhao)母(mu)雞(ji)的(de)營(ying)養(yang)成(cheng)分(fen)含(han)量(liang)飼(si)喂(wei)。公(gong)雞(ji)的(de)能(neng)量(liang)需(xu)要(yao)和(he)母(mu)雞(ji)基(ji)本(ben)一(yi)致(zhi),蛋(dan)白(bai)質(zhi)水(shui)平(ping)要(yao)低(di)於(yu)16%~18%產蛋母雞的營養水平,正常12%~14%deshuipingjiukemanzucaijingdexuyao,shenzhilvediyixieyekeyi,danpinzhiyaohao,gezhonganjisuanzuchengyaoheli。danbaizhizhonggezhonganjisuanpinghengdehua,keyibubijiaruyufendengdongwudanbaizhi。ruoshinonghuyangzhi,bunengzhunquefenxisiliaozhonggezhonganjisuandebiliheshuliang,keyizaisiliaozhongjiarushaolianggaopinzhiyufen、魚yu精jing粉fen等deng動dong物wu蛋dan白bai質zhi飼si料liao。注zhu意yi一yi定ding不bu要yao用yong母mu雞ji飼si料liao飼si喂wei公gong雞ji,這zhe樣yang既ji浪lang費fei蛋dan白bai質zhi飼si料liao,公gong雞ji也ye不bu需xu要yao那na麼me多duo的de鈣gai質zhi。一yi般ban采cai精jing時shi期qi的de種zhong公gong雞ji鈣gai的de用yong量liang1.0%~1.5%,磷0.65%~0.8%即可。
三、母雞的飼養管理
種母雞的管理應堅持“防重於治”的de原yuan則ze,定ding期qi帶dai雞ji消xiao毒du,預yu防fang各ge種zhong傳chuan染ran病bing發fa生sheng,盡jin量liang少shao用yong藥yao物wu。第di一yi次ci輸shu精jing之zhi前qian,飲yin用yong補bu液ye鹽yan等deng來lai減jian緩huan應ying激ji。飼si料liao中zhong維wei生sheng素su的de添tian加jia量liang大da約yue是shi商shang品pin雞ji的de3~4倍。所以種母雞應使用種雞專用多種維生素,若用商品蛋雞的多種維生素,維生素的劑量應加大到商品雞的數倍,特別是VA、VB、VD、VE等成分必須滿足。
四、光照管理
光照是公雞精液品質的又一個影響因素,光照不但影響公雞精液的數量,也影響精液的質量。對公雞來說12~14個小時10LX的光照,就可維持公雞正常的繁殖性能,少於9xiaoshizejingyepinzhixiajiang,yibangongmujidousiyangzaitongyidongshenei,jieshouguangcijideqiangduheshijianshiyizhide。danduixiaogongjilaishuodadaochanshengzuidajingyeliangyaobimujidadaozuigaodechandangaofengxuyaogengchangdeguangzhaociji。yejiushishuo,shidangtiqiangeigongjiyiguangzhaocijikeshigongjidejingyelianghemujidechandangaofengtongbu。
五、采精和人工授精技術
公雞在使用前應該訓練采精,形成固定的采精反射。首先剪去公雞泄殖腔周圍羽毛,便於收集精液。公雞一般經過10天左右4~5cidecaijingxunlianbiankexingchengtiaojianfanshe。tongshizuohaojingyepinzhidepingdinggongzuo,ruguojingyeguoshaohuozhilianghuolicha,biankequedinggongjidequshe,rengongshoujingzhiqiangongmubilizai1:20weihao。ruogongjizhilianghao,tongshiyoushidanlongsiyangdehua,gongmubilihaikejiadayixie。caijingheshujingguochengyaoqiusiyangyuanrenzhenfuze,dongzuobuyaocubao,siyangyuanyaoqiuyouyidingdecaijinghefangangjingyan,yaoqiucaijingfangangshoufazhengque,yongliheli,peihemoqi。yibanzaigongjicaijingzhiqian、母雞人工授精之前都要停止飲水,保證公雞的精液不被汙染和翻肛時糞便汙染。
因為采集一次雞精液隻需30分鍾。在下午3點後輸精家禽受精率更高。剛開始輸精時,輸精任務重,可以加班加點進行,不可提前輸精,基本上保證每4天輸精一次,首次輸精必須連續輸2天以上或首次加倍輸精。產蛋高峰時期的母雞每次輸精時每隻母雞要輸入原精0.025毫升。每5~7天輸一次,產蛋中期以後最好加倍,每4~5天輸一次。
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