強化飼養管理
qianghuasiyangguanlishizengqiangniutijiankang,jianshaoyingyangxingbuzudejibenfangfa。yinweimuniuweiguoduodejingsiliaoeryundongyoubuzu,rongyishinainiuguofei,faqingyichang,fangaishengyu。youqigaochannainiujingliaoguoduo,gengyiyinqidaixiejibing,jinerzaochengbuyunheduniushengchangqiyingyangbuliang,fayushouzu,yingxiangshengzhiqidefayu,yizaochengchuqingqituichi,chuchanqichuxiannanchanhuositai,jiyingxiangfanzhixingneng,yeyingxiangshengchanxingneng。qicishijinjinianyoudeweiniudejiegansiliaoshiyongguochucaojide,jieguozaochengniuliuchanbingqiechangqibuyun,shishenmeyuanyinhaiyoudaijinyibuyanjiu。lingwai,yundongyuyangguangyuyeduifangzhinainiubuyunyouzhongyaozuoyong。runiushetongfengbuhao,kongqiwuzhuo,guoduchaoshi,xiajimenre,dongjikuhandengeliehuanjing,bujinweihaimuniujiankang,hainengzaochengmuniutingzhifaqing。yinci,zaisiyangguanlishang,yishiyaobaozhengquanjiadedanbaizhi,chongzudeweishengsujigai、磷等礦物質飼料,還要保證飼料多樣化,青綠多汁飼料和優質幹草滿足供應,禁喂用過除草劑的秸稈或有黴變的幹草;二是要讓奶牛每天有適當的運動,保證每天上下午和夜間將牛攆出舍外運動1小時左右;三是每天保證奶牛日光浴(舍內安裝日光燈)16小時,同時每天要刷拭牛體1—2次,既促進血液循環,還能保持牛體清潔衛生;四是棚圈、舍內勤打掃,牛床保持清潔幹燥,每天更換墊草,同時要保持牛舍通風幹燥。
注重產房護理
注重產房護理是保證下胎發育配種的首要措施。因為母牛在產房期間的護理會直接影響到泌乳、zigongdehuifujixiataidepeizhong。yinci,weilecujinmuniuzaichanhoutizhidehuifu,buzhiyuyinfenmianhuozaichanfangneifashengzigongneimoyan,eryingxiangzhengchangfaqingpeizhong,yingzuodao:1.對dui臨lin產chan母mu牛niu要yao實shi行xing自zi然ran分fen娩mian,避bi免mian過guo早zao地di采cai用yong人ren工gong助zhu產chan,必bi要yao助zhu產chan時shi,要yao找zhao獸shou醫yi操cao作zuo。首shou先xian要yao做zuo好hao衛wei生sheng消xiao毒du工gong作zuo,即ji術shu者zhe手shou臂bi清qing洗xi,助zhu產chan器qi械xie消xiao毒du,母mu牛niu後hou軀qu用yong消xiao毒du液ye清qing洗xi。其qi次ci要yao由you獸shou醫yi做zuo出chu胎tai位wei確que診zhen,助zhu手shou要yao細xi心xin,操cao作zuo不bu粗cu魯lu,防fang止zhi產chan道dao損sun傷shang,減jian少shao產chan道dao微wei生sheng物wu感gan染ran。據ju我wo們men調tiao查zha,我wo市shi個ge體ti戶hu由you於yu不bu找zhao獸shou醫yi自zi己ji實shi行xing不bu適shi當dang的de助zhu產chan造zao成cheng奶nai牛niu的de各ge種zhong生sheng殖zhi器qi疾ji病bing而er不bu孕yun或huo長chang期qi不bu孕yun的de占zhan全quan市shi奶nai牛niu不bu孕yun症zheng的de60%以上。2.對胎衣不下的母牛應給予及時治療,凡胎衣不下牛隻,建議剝離後用抗生素灌注。如胎衣粘連過緊,不易剝脫者,一律用抗生素(金黴素1—2g或土黴素2—4g)灌入子宮、隔日一次,直到陰道分泌物清亮為止。3.要做好出產房母牛的健康檢查。產後10天開始陰道檢查,一般情況胎衣自行脫落牛隻,產後15天可以出產房;凡子宮內膜炎或胎衣不下者一律在產房內經過治療後才能出產房。但是,凡出產房的牛隻必須堅持三個標準:一是食欲、泌乳正常,全身健康無病;二是子宮恢複正常;三是陰道分泌物清亮或呈暗褐色,膠凍樣,無臭味。
準確掌握發情
正確判定母牛發情,不漏掉發情牛,不錯過母牛情期,是防治奶牛不孕的先決條件,因為母牛在產犢20多天後,就有發情情況,一般母牛產後1—3個情期發情,排卵規律比較正常。其發情牛的正常現象是:muniuxingfenbuan,shiyujiantui,shichangmingjiao,luantiaoluandong,zhuipaqitamuniuhuorangbieniupakua,lianghouzhichengkai,gongyao,niaopindanliangshao,weigentaiqihuoyaohuang,tongshiwaiyinbusongchi、腫脹,黏膜充血、潮紅,子宮頸口開張、充chong血xue腫zhong脹zhang,子zi宮gong內nei分fen泌mi的de黏nian液ye常chang排pai出chu陰yin門men之zhi外wai,黏nian液ye透tou明ming,呈cheng線xian狀zhuang。因yin此ci,對dui發fa情qing牛niu應ying在zai早zao午wu晚wan分fen別bie進jin行xing一yi次ci仔zai細xi觀guan察cha。而er對dui不bu發fa情qing或huo隱yin性xing發fa情qing的de母mu牛niu,應ying采cai取qu的de方fang法fa是shi:1.可進行陰道檢查,看陰道黏膜、黏液,子宮頸口的開張情況。2.也可做直腸檢查,觸摸子宮、卵巢和卵泡變化情況。3.也可選用適當的激素進行催情,促其排卵,即用孕馬血清10—20毫升一次注射,40—48小時後,可刺激母牛性機能活動,引起發情或加強發情過程。
搞好適時配種
zaizhengquefaqingjiandingdeqiantixia,zhunqueershishipeizhongshitigaonainiushouyunlvhefangzhibuyundeguanjian。yinciyaoqiupeizhongyuanzaipeizhongguochengzhongyaoyougaoduzerengan,bingqiezuodao:1.應掌握該母牛的繁殖情況和配種情況,要有詳細的配種記錄。2.要(yao)嚴(yan)格(ge)遵(zun)守(shou)人(ren)工(gong)授(shou)精(jing)的(de)無(wu)菌(jun)操(cao)作(zuo)規(gui)程(cheng),要(yao)嚴(yan)格(ge)進(jin)行(xing)精(jing)液(ye)品(pin)質(zhi)的(de)檢(jian)查(zha),做(zuo)好(hao)凍(dong)精(jing)解(jie)凍(dong),正(zheng)確(que)掌(zhang)握(wo)受(shou)精(jing)時(shi)間(jian)進(jin)行(xing)輸(shu)精(jing),操(cao)作(zuo)要(yao)細(xi),消(xiao)毒(du)要(yao)嚴(yan)格(ge),輸(shu)精(jing)部(bu)位(wei)要(yao)準(zhun)確(que)。3.對一些兩到三次尚未受孕的牛隻采取輸精時加入青黴素20—40萬單位的方法,可有效地提高受孕率。
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