春天至初夏是牛的配種旺季,在這個季節裏,調整種公牛性機能,增強它們的配種能力,從而提高母牛的配種準胎率,是十分必要的。
母牛配種準胎率的高低,與種公牛配種能力的大小有很大關係;種公牛配種能力的大小,與其性機能的強弱有直接的關係;種公牛性機能的強弱,又與其氣質、性格有關。
種公牛按其氣質和性格來分,可分為三種類型:第一種類型是氣質、性(xing)格(ge)活(huo)潑(po)型(xing)。這(zhe)種(zhong)公(gong)牛(niu)很(hen)容(rong)易(yi)形(xing)成(cheng)條(tiao)件(jian)反(fan)射(she),配(pei)種(zhong)時(shi)行(xing)動(dong)敏(min)捷(jie),興(xing)奮(fen)的(de)快(kuai)。在(zai)配(pei)種(zhong)過(guo)程(cheng)中(zhong)與(yu)母(mu)牛(niu)配(pei)合(he)協(xie)調(tiao),射(she)精(jing)充(chong)分(fen),可(ke)順(shun)利(li)完(wan)成(cheng)每(mei)次(ci)的(de)配(pei)種(zhong)任(ren)務(wu)。第(di)二(er)種(zhong)類(lei)型(xing)是(shi)氣(qi)質(zhi)、xinggeliebaoxing。zhezhonggongniuhaoshengxinqiang,peizhongshibiaoxianwanqiang。zaipeizhongguochengzhong,youshisuijinglixiaohaodaijin,danrengyongwangjiaopei。zheyang,peizhongxiaoguowangwangbuhao。disanzhongleixingshiqizhi、性xing格ge安an靜jing懦nuo弱ruo型xing。這zhe種zhong公gong牛niu不bu愛ai活huo動dong,不bu容rong易yi興xing奮fen。配pei種zhong時shi表biao現xian膽dan小xiao,在zai嘈cao雜za不bu安an靜jing的de情qing況kuang下xia,往wang往wang拒ju絕jue交jiao配pei,給gei配pei種zhong帶dai來lai一yi定ding的de困kun難nan。
用yong以yi上shang三san種zhong類lei型xing的de種zhong公gong牛niu進jin行xing配pei種zhong,必bi須xu在zai保bao證zheng滿man足zu其qi對dui各ge種zhong營ying養yang需xu要yao的de基ji礎chu上shang,分fen別bie采cai取qu針zhen對dui性xing的de方fang法fa來lai調tiao整zheng其qi性xing機ji能neng,使shi其qi能neng適shi應ying配pei種zhong的de需xu要yao。對dui第di一yi種zhong類lei型xing的de種zhong公gong牛niu,應ying提ti供gong更geng好hao的de配pei種zhong條tiao件jian和he環huan境jing,盡jin量liang保bao持chi和he延yan長chang其qi良liang好hao的de性xing機ji能neng。對dui第di二er種zhong類lei型xing的de種zhong公gong牛niu,則ze要yao建jian立li嚴yan格ge的de配pei種zhong製zhi度du,有you計ji劃hua地di讓rang其qi進jin行xing交jiao配pei。而er且qie還hai要yao用yong3%的溴化鈉溶液1.5升一次灌服,每天一次,連灌15天(tian)左(zuo)右(you)。對(dui)第(di)三(san)種(zhong)類(lei)型(xing)的(de)種(zhong)公(gong)牛(niu),則(ze)可(ke)有(you)計(ji)劃(hua)地(di)讓(rang)其(qi)運(yun)動(dong),並(bing)經(jing)常(chang)進(jin)行(xing)睾(gao)丸(wan)按(an)摩(mo)。實(shi)踐(jian)證(zheng)明(ming),給(gei)種(zhong)公(gong)牛(niu)進(jin)行(xing)睾(gao)丸(wan)按(an)摩(mo),能(neng)增(zeng)加(jia)局(ju)部(bu)血(xue)流(liu)量(liang),改(gai)善(shan)局(ju)部(bu)營(ying)養(yang)條(tiao)件(jian),並(bing)提(ti)高(gao)性(xing)激(ji)素(su)的(de)活(huo)動(dong)性(xing),從(cong)而(er)使(shi)性(xing)機(ji)能(neng)得(de)到(dao)增(zeng)強(qiang)。按(an)摩(mo)方(fang)法(fa)是(shi),先(xian)用(yong)溫(wen)水(shui)給(gei)種(zhong)公(gong)牛(niu)洗(xi)陰(yin)囊(nang)。洗(xi)後(hou)再(zai)用(yong)手(shou)揉(rou)搓(cuo)按(an)摩(mo)陰(yin)囊(nang)、精索、睾丸和副睾。每次10分鍾,每天一次。與此同時,還要用咖啡堿溶液灌服,方法是用咖啡堿4克,配製成濃度為1%的將液,一次灌服,每天一次,連灌15天左右。這樣,可收到更好的配種效果。
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