CAJ | 학술논문

目的探索不同硒源对泌乳期母猪生产性能、免疫功能和甲状腺激素水平的影响．方法选用健康、体况相似、预产期相近的3～6胎次长×大杂交二元经产母猪200头，随机分为10组，每组20个重复，每个重复1头母猪，分别饲喂不同处理的日粮．1组为对照组，饲喂不添加硒源的基础日粮；其余9组为试验组，分别以亚硒酸钠、酵母硒和纳米硒的形式添加，各形式硒的添加量均分别为0.3、0.5、0.7 mg· kg －1．试验期为58 d．结果和结论0.3、0.5 mg· kg－1硒添加量的酵母硒组和0.5、0.7 mg· kg－1硒添加量的纳米硒组母猪的后代初生窝质量显著高于空白对照组（ P＜0.05）；0.5 mg· kg －1硒添加量的酵母硒组仔猪断奶窝质量、窝增质量、日增质量均显著高于空白对照组和亚硒酸钠组（P＜0.05）；硒源对哺乳母猪和哺乳仔猪血清3，3′，5-三碘甲腺原氨酸（T3）、3，5，3′，5′-四碘甲腺原氨酸（T4）质量浓度的影响极显著（P＜0.01）；纳米硒组母猪血清T3质量浓度比对照组、亚硒酸钠组和酵母硒组依次提高了29.52％、17.24％和23.63％（P＜0.01）；纳米硒组母猪血清T4质量浓度比对照组、亚硒酸钠组和酵母硒组依次降低了24.71％、30.88％和33.86％（P＜0.01）；纳米硒组母猪血清IgA质量浓度比亚硒酸钠组、酵母硒组依次提高了85.39％、79.35％（P＜0.01），血清IgM质量浓度比亚硒酸钠组、酵母硒组依次提高了24.19％、50.98％（P＜0.01）；与对照组相比，亚硒酸钠、纳米硒和酵母硒组哺乳仔猪血清IgG质量浓度分别提高了19.11％、43.39％和34.63％（P＜0.01），血清IgA质量浓度分别提高了93.67％、160.75％、132.91％（P＜0.01），血清IgM质量浓度分别提高了90.91％、140.91％、102.27％（ P＜0.01）．结果表明：在泌乳期母猪日粮中添加纳米硒和酵母硒能显著提高母猪的繁殖性能、免疫功能并调节血清甲状腺激素水平．目的探索不同硒源對泌乳期母豬生產性能、免疫功能和甲狀腺激素水平的影響．方法選用健康、體況相似、預產期相近的3～6胎次長×大雜交二元經產母豬200頭，隨機分為10組，每組20箇重複，每箇重複1頭母豬，分彆飼餵不同處理的日糧．1組為對照組，飼餵不添加硒源的基礎日糧；其餘9組為試驗組，分彆以亞硒痠鈉、酵母硒和納米硒的形式添加，各形式硒的添加量均分彆為0.3、0.5、0.7 mg· kg －1．試驗期為58 d．結果和結論0.3、0.5 mg· kg－1硒添加量的酵母硒組和0.5、0.7 mg· kg－1硒添加量的納米硒組母豬的後代初生窩質量顯著高于空白對照組（ P＜0.05）；0.5 mg· kg －1硒添加量的酵母硒組仔豬斷奶窩質量、窩增質量、日增質量均顯著高于空白對照組和亞硒痠鈉組（P＜0.05）；硒源對哺乳母豬和哺乳仔豬血清3，3′，5-三碘甲腺原氨痠（T3）、3，5，3′，5′-四碘甲腺原氨痠（T4）質量濃度的影響極顯著（P＜0.01）；納米硒組母豬血清T3質量濃度比對照組、亞硒痠鈉組和酵母硒組依次提高瞭29.52％、17.24％和23.63％（P＜0.01）；納米硒組母豬血清T4質量濃度比對照組、亞硒痠鈉組和酵母硒組依次降低瞭24.71％、30.88％和33.86％（P＜0.01）；納米硒組母豬血清IgA質量濃度比亞硒痠鈉組、酵母硒組依次提高瞭85.39％、79.35％（P＜0.01），血清IgM質量濃度比亞硒痠鈉組、酵母硒組依次提高瞭24.19％、50.98％（P＜0.01）；與對照組相比，亞硒痠鈉、納米硒和酵母硒組哺乳仔豬血清IgG質量濃度分彆提高瞭19.11％、43.39％和34.63％（P＜0.01），血清IgA質量濃度分彆提高瞭93.67％、160.75％、132.91％（P＜0.01），血清IgM質量濃度分彆提高瞭90.91％、140.91％、102.27％（ P＜0.01）．結果錶明：在泌乳期母豬日糧中添加納米硒和酵母硒能顯著提高母豬的繁殖性能、免疫功能併調節血清甲狀腺激素水平．
목적탐색불동서원대비유기모저생산성능、면역공능화갑상선격소수평적영향．방법선용건강、체황상사、예산기상근적3～6태차장×대잡교이원경산모저200두，수궤분위10조，매조20개중복，매개중복1두모저，분별사위불동처리적일량．1조위대조조，사위불첨가서원적기출일량；기여9조위시험조，분별이아서산납、효모서화납미서적형식첨가，각형식서적첨가량균분별위0.3、0.5、0.7 mg· kg －1．시험기위58 d．결과화결론0.3、0.5 mg· kg－1서첨가량적효모서조화0.5、0.7 mg· kg－1서첨가량적납미서조모저적후대초생와질량현저고우공백대조조（ P＜0.05）；0.5 mg· kg －1서첨가량적효모서조자저단내와질량、와증질량、일증질량균현저고우공백대조조화아서산납조（P＜0.05）；서원대포유모저화포유자저혈청3，3′，5-삼전갑선원안산（T3）、3，5，3′，5′-사전갑선원안산（T4）질량농도적영향겁현저（P＜0.01）；납미서조모저혈청T3질량농도비대조조、아서산납조화효모서조의차제고료29.52％、17.24％화23.63％（P＜0.01）；납미서조모저혈청T4질량농도비대조조、아서산납조화효모서조의차강저료24.71％、30.88％화33.86％（P＜0.01）；납미서조모저혈청IgA질량농도비아서산납조、효모서조의차제고료85.39％、79.35％（P＜0.01），혈청IgM질량농도비아서산납조、효모서조의차제고료24.19％、50.98％（P＜0.01）；여대조조상비，아서산납、납미서화효모서조포유자저혈청IgG질량농도분별제고료19.11％、43.39％화34.63％（P＜0.01），혈청IgA질량농도분별제고료93.67％、160.75％、132.91％（P＜0.01），혈청IgM질량농도분별제고료90.91％、140.91％、102.27％（ P＜0.01）．결과표명：재비유기모저일량중첨가납미서화효모서능현저제고모저적번식성능、면역공능병조절혈청갑상선격소수평．
[Objective]This experiment was conducted to study the effects of different Se sources on pro-duction performance , thyroid level and immune function in sows during lactation .[Method]A total of 200 LY ( Landrace ×Yorkshire ) binary hybrid multiparous sows ( healthy , with similar body condition , close due date , 3-6 parities ) were allotted to 10 groups randomly , with 20 replications in each group .Group one was the control group fed with basal diet without supplementation of Se .The other 9 groups were sup-plemented with 0.3, 0.5 or 0.7 mg· kg -1 Se-containing sodium selenite , yeast selenium or nano-selenium respectively .The whole feeding experiment lasted for 58 days.[Result and conclusion]The birth mass of group supplemented with yeast selenium by 0.3, 0.5 mg· kg -1 or nano-selenium by 0.5, 0.7 mg· kg -1 was significantly higher than that of the control group ( P<0.05 ) .The group with 0.5 mg· kg -1 selenium yeast was significantly higher than those of the control group and the group with sodium selenite in mass of weaning litter, litter mass gain and daily gain(P<0.05).The effect of different sources of selenium on 3, 3′, 5-triiodothyronine(T3) and 3, 5, 3′, 5′-thyroxine(T4) mass concentrations in serum of lactation sows and sucking piglets was extremely significant (P<0.01).Compared with the control group, groups with sodium selenite or selenium yeast , the serum T3 mass concentration of sows fed on the diets supple-mented with nano-selenium group significantly ( P<0.01) increased by 29.52%, 17.24%or 23.63%, respectively , but the serum T 4 mass concentration significantly ( P <0.01 ) decreased by 24.71%, 30.88%or 33.86%respectively .Compared with the group with sodium selenite or selenium yeast , the serum IgA and IgM mass concentration of sows fed on the diets with nano-selenium increased by 85.39%and 79.35%(P<0.01)or 24.19%and 50.98%(P<0.01) respectively.Compared with the control group, the serum IgG mass concentration of sucking piglets from the sows fed on the diets with sodium selenite , nano-selenium or selenium yeast significantly ( P<0.01 ) increased by 19.11%, 43.39% or 34.63%respectively , while the serum IgA and IgM mass concentration increased by 93.67%,160.75%or 132.91%and 90.91%, 140.91%or 102.27%respectively .The results indicate that nano-selenium or selenium yeast supplemented in diets can significantly improve the reproductive performance and im -mune function of sows , and regulating the secretion of thyroxine .