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康奈尔净碳水化合物-蛋白质体系预测小肠可消化粗蛋白质含量

DOI: 10.3969/j.issn.1006-267x.2012.07.012

Keywords: 相关,回归,蛋白质饲料,能量饲料

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Abstract:

本试验旨在建立奶牛饲料的康奈尔净碳水化合物-蛋白质体系(Cornellnetcarbohydrateandproteinsystem,CNCPS)预测小肠可消化粗蛋白质(uCP)含量的数学模型。采用CNCPS体系对13种饲料蛋白质组分进行划分,采用移动尼龙袋法测定13种饲料小肠uCP含量,试验动物为3头带有永久性瘤胃瘘管和十二指肠瘘管的荷斯坦奶牛,采用单因素试验设计。结果表明:1)豆粕、棉籽粕、菜籽粕、葵花籽粕、芝麻粕、玉米胚芽粕、米糠、米糠饼、米糠粕、大麦、麦麸、玉米和玉米麸质饲料的uCP含量分别为390.32、321.90、297.21、230.50、388.62、177.49、85.53、116.78、134.74、80.47、128.26、70.28和66.65g/kg。2)所有试验饲料实测uCP含量与CNCPS各蛋白质组分含量的回归方程为:uCP=-4.11+6.48PA+7.73PB1+5.72PB2+8.26PB3+5.11PC(R2=0.9972,P<0.01);蛋白质饲料实测uCP含量与CNCPS各蛋白质组分含量的回归方程为:uCP=12.79+5.47PA+7.04PB1+9.74PB2+8.14PB3(R2=0.9987,P<0.01);能量饲料实测uCP含量与CNCPS各蛋白质组分含量的回归方程为:uCP=14.80+8.55PA+6.27PB2+17.64PB3(R2=0.9874,P<0.01)。3)蛋白质饲料、能量饲料及所有试验饲料的实测uCP含量与CNCPS各蛋白质组分含量的相关系数均高于0.95,蛋白质饲料实测uCP含量与CNCPS各蛋白质组分含量的相关系数高于能量饲料。结果提示,利用CNCPS体系划分的各蛋白质组分含量预测饲料uCP含量是可行的,且预测蛋白质饲料的uCP含量比预测能量饲料的uCP含量更准确。

References

[1]  HVELPLUND T.Digestibility of rumen microbial protein and undegraded dietary protein estimated in the small intestine of sheep and by in sacco procedure[J].Acta Agriculturae Scandinavica.Supplementum,1985,25:132-144.
[2]  SNIFFEN C J,O’CONNOR J D,VAN SOEST P J,et al.A net carbohydrate and protein system for evaluating cattle diets.Ⅱ.Carbohydrate and protein availability[J].Journal of Animal Science,1992,70:3562-3577.
[3]  TAMMINGA S,VAN STRAALEN W M.The Dutch protein evaluation system:the DVE/OEB system[J].Livestock Production Science,1994,40:139-155.
[4]  冯仰廉,陆治年.奶牛营养需要和饲料成分[M].北京:中国农业出版社,2001:12.
[5]  KUSUMANTI E,WEISBJERG M R,HVELPLUND T.A comparison between protein disappearance from the mobile bag and acid detergent solubility of nitrogen estimates of protein digestibility in ruminants[J].Journal of Animal Feed Science,1996,5:337-345.
[6]  SHANNAK S,SUDEKUM K H,SUSENBETH A.Estimating ruminal crude protein degradation with in situ and chemical fractionation procedures[J].Animal Feed Science and Technology,2000,85:195-214.
[7]  ZHAO G Y,CAO I E.Relationship between the in vitro-estimated utilizable crude protein and the cornell net carbohydrate and protein system crude protein fractions in feeds for ruminants[J].Animal Physiology and Animal Nutrition,2004,88:301-310.
[8]  李燕鹏.用CNCPS评定反刍动物饲料营养价值.硕士学位论文.南宁:广西大学,2008.
[9]  WOODS V B,MOLONEY A P,CALSAMIGLIA S,et al.The nutritive value of concentrate feedstuffs for ruminant animals.Part Ⅲ.Small intestine digestibility as measured by in vitro or mobile bag techniques[J].Animal Feed Science and Technology,2003,110:145-157.
[10]  VAN SOEST P J,SNIFFEN C J,MERTENS D R,et al.A net protein system for cattle:the rumen submodel for nitrogen //OWENS F N.Protein requirements for cattle:proceedings of an international symposium.Stillwater:Oklahoma State University,1981:265.
[11]  LICITRA G,HERNANDEZ T M, VAN SOEST P J.Standardization of procedures for nitrogen fraction of ruminant feeds[J].Animal Feed Science and Technology,1996,57:347-358.
[12]  么学博,杨红建,谢春元,等.反刍家畜常用饲料蛋白质和氨基酸瘤胃降解特性和小肠消化率评定研究[J].动物营养学报,2007,19(3):225-231.
[13]  YU P,MEIER J A.Using the NRC-2001 model and the DVE/OEB system to evaluate nutritive values of Harrington (malting-type) and Valier (feed-type) barley for ruminants[J].Animal Feed Science and Technology,2003,107:45-60.
[14]  RSKOV E R,MCDONALD I.The estimation of protein degradability in the rumen from incubation measurements weighted according to the rate of passage[J].Journal of Agriculture Science,1979,92:499-503.
[15]  SAS.User’s guide:statistics[M].8th ed. Raleigh-Cary:SAS Inst.Inc.,1999.
[16]  LEBZIEN P,VOIGT J,GABEL M,et al. Zur schtzung der menge an nutzbarem rohprotein am duodenum von milchkuhen[J].Journal of Animal Physiology and Animal Nutrition,1996,76:218-223.
[17]  CHALUPA W,SNIFFEN C J,FOX D G,et al.Model generated protein degradation nutritional information //Cornell nutrition conference for feed manufacturers.Ithaca:Cornell University,1991:44-51.

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