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评估L-蛋氨酸的有效性及标准回肠可消化蛋氨酸水平对断奶仔猪生长性能、营养物质表观消化率及血浆参数的影响

DOI: 10.3969/j.issn.1006-267x.2013.10.027

Keywords: L-蛋氨酸,断奶仔猪,生长性能,营养物质表观消化率,血浆参数

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Abstract:

本试验以DL-蛋氨酸作为对照,评估L-蛋氨酸作为断奶仔猪饲粮蛋氨酸来源的有效性,并初步确定满足断奶仔猪营养需要的标准回肠可消化蛋氨酸(SIDMet)水平对断奶仔猪生长性能、营养物质表观消化率及血浆参数的影响。试验采用完全随机区组设计,将180头28日龄断奶的"杜×长×大"三元杂交仔猪[初始体重为(7.83±1.37)kg]按体重、性别、遗传基础相似的原则,分为5个组,每组6个重复,每个重复6头猪,公母分开饲养。对照组以DL-蛋氨酸作为蛋氨酸来源,SIDMet水平为0.34%;试验组以L-蛋氨酸作为蛋氨酸来源,SIDMet水平分别为0.28%(试验Ⅰ组)、0.31%(试验Ⅱ组)、0.34%(试验Ⅲ组,与对照组SIDMet水平相同)和0.37%(试验Ⅳ组)。试验期28d。结果表明:饲粮中SIDMet水平的升高可显著提高平均日增重并显著改善饲料转化率(P<0.05),同时干物质和粗蛋白质的表观消化率呈线性升高(P<0.05);随着饲粮SIDMet水平的提高,血浆尿素氮含量显著降低(P<0.05),血浆游离蛋氨酸和半胱氨酸含量显著增高而丝氨酸含量显著降低(P<0.05);根据折线模型,以平均日增重为指标,得出本试验条件下断奶仔猪适宜SIDMet水平为0.35%。对照组与试验Ⅲ组相比,断奶仔猪的生长性能、营养物质表观消化率及血浆参数差异均不显著(P>0.05);以平均日增重为指标的相对生物学效价结果表明,等摩尔量L-蛋氨酸相对于DL-蛋氨酸的生物学效价为97%。由此可见,本试验使用的L-蛋氨酸可作为断奶仔猪饲粮的有效蛋氨酸来源,适宜SIDMet水平为0.35%;初步评估L-蛋氨酸与DL-蛋氨酸相对生物学效价相当,二者在断奶仔猪饲粮中饲用效果相近。

References

[1]  YI G F,GAINS A M,RATLIFF B W,et al.Estimation of the true ileal digestible lysine and sulfur amino acid requirement and comparison of the bioefficacy of 2-hydroxy-4-(methylthio) butanoic acid and DL-methionine in eleven-to twenty-six-kilogram nursery pigs[J].Journal of Animal Science,2006,84:1709-1721.
[2]  GAINS A M,YI G F,RATLIFF B W,et al.Estimation of the ideal ratio of true ileal digestible sulfur amino acids:lysine in 8-to 26-kg nursery pigs[J].Journal of Animal Science,2005,83:2527-2534.
[3]  CHUNG T K,BAKER D H.Utilization of methionine isomers and analogs by the pig[J].Canadian Journal of Animal Science,1992,72:185-188.
[4]  WU G,FANG Y Z,YANG S,et al.Glutathione metabolism and its implications for health[J].The Journal of Nutrition,2004,134:489-492.
[5]  COMA J,CARRION D,ZIMMERMAN D R.Use of plasma urea nitrogen as a rapid response criterion to determine the lysine requirement of pigs[J].Journal of Animal Science,1995,73:472-481.
[6]  ROSELL V L,ZIMMERMAN D R.Threonine requirement of pigs weighing 5 to 15 kg and the effect of excess methionine in diets marginal in threonine[J].Journal of Animal Science,1985,60:480-486.
[7]  MITCHELL J R,Jr,BECKER D E,JENSEN A H,et al.Determination of amino acid needs of the young pig by nitrogen balance and plasma-free amino acids[J].Journal of Animal Science,1968,27:1327-1331.
[8]  LEWIS A J,PEO E R,Jr,MOSER B D,et al.Lysine requirement of pigs weighing 5 to 15 kg fed practical diets with and without added fat[J].Journal of Animal Science,1980,51:361-366.
[9]  WANG X,QIAO S Y,LIU M,et al.Effects of graded levels of true ileal digestible threonine on performance,serum parameters,and immune function of 10-25 kg pigs[J].Animal Feed Science and Technology,2006,129:264-278.
[10]  BROSNAN J T,BROSNAN M E,BERTOLO R F P,et al.Methionine:a metabolically unique amino acid[J].Livestock Science,2007,112:2-7.
[11]  GAINS A,RATLIFF B,SRICHANA P,et al.Methionine source studied[EB/OL].(2004-09-15).http://nationalhogfarmer.com/mag/farming_methionine_sources_studied.
[12]  OWEN K Q,NELSSEN J L,GOODBAND R D,et al.Added dietary methionine in starter pig diets containing spray-dried blood products[J].Journal of Animal Science,1995,73:2647-2654.
[13]  BAUCHART-THEVRET C,STOLL B,BURRIN D G,et al.Intestinal metabolism of sulfur amino acids[J].Nutrient Research Reviews,2009,22:175-187.
[14]  TESSERAUD S,MéTAYER COUSTARD S,COLLIN A,et al.Role of sulfur amino acids in controlling nutrient metabolism and cell functions:implications for nutrition[J].British Journal of Nutrition,2009,101:1132-1139.
[15]  SHOVELLER A K,STOLL B,BALL R O,et al.Nutritional and functional importance of intestinal sulfur amino acid metabolism[J].The Journal of Nutrition,2005,135:1609-1612.
[16]  METAYER S,SEILIEZ I,COLLIN A,et al.Mechanisms through which sulfur amino acids control protein metabolism and oxidative status[J].The Journal of Nutritional Biochemistry,2008,19:207-215.
[17]  CHUNG T K,BAKER D H.Methionine requirement of pigs between 5 and 20 kilograms body weight[J].Journal of Animal Science,1992,70:1857-1863.
[18]  BAUCHART-THEVRET C,STOLL B,CHACKO S,et al.Sulfur amino acid deficiency upregulates intestinal methionine cycle activity and suppresses epithelial growth in neonatal pigs[J].American Journal of Physiology:Endocrinology and Metabolism,2008,296:1239-1250.
[19]  STOLL B,HENRY J,REEDS P J,et al.Catabolism dominates the first-pass intestinal metabolism of dietary essential amino acids in milk protein-fed piglets[J].The Journal of Nutrition,1998,128:606-614.
[20]  HAN Y,CASTANNON F,PARSONS C M,et al.Absorption and bioavailability of DL-methionine hydroxyl analog compared to DL-methionine[J].Poultry Science,1990,69:281-287.
[21]  ZHAN Z F,OU D Y,PIAO X S,et al.Dietary arginine supplementation affects microvascular development in the small intestine of early-weaned pigs[J].The Journal of Nutrition,2008,138:1304-1309.
[22]  WU G,KNABE D A.Free and protein-bound amino acids in sow''s colostrums and milk[J].The Journal of Nutrition,1994,124:415-424.
[23]  ROBBINS K R,SAXTON A M,SOUTHERN L L.Estimation of nutrient requirements using broken-line regression analysis[J].Journal of Animal Science,2006,84:E155-E165.
[24]  LITTELL R C,HENRY P R,LEWIS A J,et al.Estimation of relative bioavailability of nutrients using SAS procedures[J].Journal of Animal Science,1997,75:2672-2683.
[25]  OWEN K Q,GOODBAND R D,NELSSEN J L,et al.The effect of dietary methionine and its relationship to lysine on growth performance of the segregated early-weaned pig[J].Journal of Animal Science,1995,73:3666-3672.

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