母畜產仔後1~24小xiao時shi分fen泌mi的de奶nai水shui稱cheng為wei初chu乳ru。仔zai畜chu產chan出chu後hou應ying及ji時shi讓rang其qi吃chi上shang初chu乳ru,特te別bie是shi在zai夏xia季ji出chu生sheng的de仔zai畜chu,初chu乳ru越yue早zao吃chi越yue好hao。因yin為wei夏xia季ji高gao溫wen高gao濕shi的de環huan境jing使shi各ge種zhong病bing原yuan微wei生sheng物wu(病菌、病毒)大量繁殖,初生幼畜抵抗力極弱,很容易受病原微生物的侵襲而致病,直接影響仔畜的成活率。
母畜初乳中營養物質豐富,能幫初生幼畜迅速地適應新的環境條件:初乳中蛋白質的含量比一般母乳高3~8倍,幹物質含量高1~2倍,維生素A含量高70倍以上,這對幼畜生長和維持其強烈的代謝有很大的作用。初乳中還含有大量的磷脂類、酶、激素、mianyitideng,nenggoushichushengyouchuhuodemianyiwuzhi,zengqiangkangbingnengli,cujinshengchangfayu。lingwai,churuzhongdekuangwuzhiyebiyibanmuruhanliangduo,erqieqizhonghanyouduoliangmeiyan,juyouqingxiezuoyong,nengcushiyouchupaichutaifen,baozhengjiankang。yinci,youchuchushenghou1~2小時,應盡快地使其吃到初乳,這是保證幼畜適應新環境條件的重要關鍵。例如:zaizhuchushenghou,rumuzhuhenanjing,jiuyingjinkuaidicaquzaizhushenshangdenianye,chenghaochushengzhong,dengjigongmushujiqitezhenghoumashangrangqichichuru。zaizhuruobuhuishunrutou,kexianbashouzhishenruqizuijiayiyoudao;如母豬不安靜,可把仔豬暫時放入接產箱內,待母豬安靜後再讓其給仔豬哺乳。
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