weiletigaohuaiyunmuzhudepeitaizhechuanglv，yeweiletongguokongzhihuaiyunmuzhudetikuang
，laitigaomuzhuburuqidecaishiliang

，womenduihuaiyunmuzhucaiyongxiansidesiweimoshi。懷孕母豬料的設計其實是一個難點
，一方麵，母豬懷孕的前期
、zhongqihehouqideyingyangxuyaoyousuochayi，jingguoburuqiyingyangxiaohaozhongxinhuaiyundemuzhutikuangyougeyouchayi，yongtongyidebiaozhunlaisiweihuaiyunmuzhuxianranshibuqiadangde。youyushijiancaozuodexianzhi
，yibanyongbutongdesiweilianglaiyingduibutongyingyangjieduanhuaiyunmuzhudeyingyangxuyao。lingyifangmian，siyangzheduihuaiyunmuzhushixingxiansidesiweimoshicunzairenshidewuqu
，yinxiansibudangerdailaidemuzhuhoujifanzhixingnengdesunhaiyiyuelaiyueyanzhong，zheyingyinqiyangzhuzhedezhuyi。

懷孕母豬限飼的程度一般是以母豬體況的評分來判斷。在傳統的5分評分標準中，3分fen的de體ti況kuang被bei認ren為wei是shi恰qia當dang的de。目mu前qian應ying引yin起qi養yang豬zhu界jie關guan注zhu的de是shi對dui限xian飼si不bu當dang的de新xin認ren識shi，限xian飼si不bu當dang不bu一yi定ding以yi體ti況kuang指zhi標biao來lai表biao現xian
，既ji可ke能neng是shi體ti內nei脂zhi肪fang的de沉chen積ji不bu足zu，以yi“背脂的厚度”來體現，也有可能由於營養配方和營養濃度沒有顧及在限飼的情況下
，懷孕母豬的營養需要
，使得與繁殖性能、免疫功能的正常表達相關的營養物質的補給不足。正是由於不一定以背脂的厚度不足來表現而容易使得飼養者忽視，因而飼養者
、營養學家要對母豬妊娠期由於限飼引起體內特殊營養的補給不足而帶來的危害要有重新認識的需要。

muzhurenshenqitineidanbaizhiheteshuyingyangdebugeibuzu，chuleyingxiangtaierdefayuzhiwai，muqiantebieyaoyinqiwomenguanzhudeshimuzhumianyiyingdasuoxudeyingyangzhicheng。zaishijishengchanzhong，muzhubeipofudanleguozhongdezhuqunmianyizeren。muzhupeiqian
、產(chan)前(qian)注(zhu)射(she)疫(yi)苗(miao)的(de)種(zhong)類(lei)和(he)次(ci)數(shu)越(yue)來(lai)越(yue)多(duo)。飼(si)養(yang)者(zhe)和(he)營(ying)養(yang)學(xue)家(jia)並(bing)沒(mei)有(you)給(gei)母(mu)豬(zhu)免(mian)疫(yi)應(ying)答(da)所(suo)需(xu)的(de)營(ying)養(yang)支(zhi)撐(cheng)有(you)足(zu)夠(gou)的(de)關(guan)注(zhu)。這(zhe)有(you)可(ke)能(neng)是(shi)豬(zhu)群(qun)整(zheng)體(ti)健(jian)康(kang)水(shui)平(ping)下(xia)降(jiang)的(de)原(yuan)因(yin)之(zhi)一(yi)。

lingwai
，huaiyunqixiansidemuzhu，youyusiweiliangjiaoshao，chijindeshimichangqiduichangweidaodechongyingbuzu，yifangmianbuliyuchangdaoderudong，rongyichanshengmuzhubianmi，lingyifangmian，yehuiyingxiangmuzhuburuqicaishiliangdetigao，yinerzaimuzhuhuaiyunqisiliaopeifangzhongyaotebiezhuyixianweileisiliaodebugei。