[1] ØRSKOV E R,MCDONALD I.The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage[J].The Journal of Agriculture Science,1979,92(2):499-503.

[2] 张微,莫放.原位尼龙袋技术在评价饲料营养价值中的应用与建议方案[J].动物营养学报,2019,31(1):1-14. ZHONG W,MO F.Application and recommendation of
in situ nylon bag technique for feed nutritional value evaluation[J].Chinese Journal of Animal Nutrition,2019,31(1):1-14. (in Chinese)
[3] ØRSKOV E R.Protein nutrition in ruminants[M].London:Academic Press,1982.
[4] AFRC.Nutritive requirements of ruminant animals:protein[S].Nutrition Abstracts and Reviews,1992:787-835.
[5] MADSEN J,HVELPLUND T.Prediction of
in situ protein degradability in the rumen.Results of a European ringtest[J].Livestock Production Science,1994,39(2):201-212.

[6] WILKERSON V A,KLOPFENSTEIN T J,STROUP W W.A collaborative study of
in situ forage protein degradation[J].Journal of Animal Science,1995,73(2):583-588.

[7] 冯仰廉,张志文,周建民,等.奶牛饲养标准的新蛋白质体系的建议[J].中国畜牧杂志,1985(2):2-6,18. FENG Y L,ZHANG Z W,ZHOU J M,et al.Recommendations for a new protein system for cow feeding standards[J].Chinese Journal of Animal Science,1985(2):2-6,18. (in Chinese)
[8] 党世彬.冲洗方法、饲喂频率、投放时间和样品重对尼龙袋法测定饲料瘤胃降解特性的影响[D].硕士学位论文.北京:中国农业大学,2019. DANG S B.Effects of rinsing method,feeding frequency,insertion time and sample size on the ruminal degradation characteristics of feedstuffs by nylon bag technique[D].Master's Thesis.Beijing:China Agricultural University,2019. (in Chinese)
[9] 栾银银.半细毛羊常用饲料营养成分在瘤胃和小肠降解规律的研究[D].硕士学位论文.北京:中国农业大学,2018. YUAN Y Y.Studies on ruminal and intestinal digestion of feed nutrients in semi-wool sheep[D].Master's Thesis.Beijing:China Agricultural University,2018. (in Chinese)
[10] NRC.Nutrient requirements of dairy cattle[S].Washington,D.C.:National Academy Press,1989.
[11] 张丽英.饲料分析及饲料质量检测技术[M].第3版.北京:中国农业大学出版社,2007. ZHANG L Y.Feed analysis and feed quality detection technology[M].3rd ed.Beijing:China Agricultural University Press,2007. (in Chinese)
[12] 颜品勋,冯仰廉,莫放,等.单一胃蛋白酶法评定青粗饲料蛋白质降解率的研究[J].饲料研究,1995(11):2-4. YAN P X,FENG Y L,MO F,et al.Study on the evaluation of protein degradation rate of green forage by simple pepsin method[J].Feed Research,1995(11):2-4. (in Chinese)
[13] 高新梅,张帆,唐福,等.不同葡萄籽酿酒残渣水平全混合日粮在育肥羊瘤胃内的有效降解率[J].动物营养学报,2018,30(4):1555-1565. GAO X M,ZHANG F,TANG F,et al.Effective degradability of total mixed ration with different levels of brewing residue of grape seed in rumen of fattening sheep[J].Chinese Journal of Animal Nutrition,2018,30(4):1555-1565. (in Chinese)
[14] 李洪涛.不同小麦和玉米品种瘤胃降解规律的研究[D].硕士学位论文.泰安:山东农业大学,2016. LI H T.Study on the ruminal degradabilities of different wheat and maize varieties[D].Master's Thesis.Taian:Shandong Agricultural University,2016. (in Chinese)
[15] 李海文,马文静,牛超,等.芦苇瘤胃降解率的研究[J].中国饲料,2017(17):42-44. LI H W,MA W J,NIU C,et al.Study on rumen degradability of reed[J].China Feed,2017(17):42-44. (in Chinese)
[16] 冯仰廉.反刍动物营养学[M].北京:科学出版社,2004. FENG Y L.Ruminant nutrition[M].Beijing:Science Press,2004. (in Chinese)
[17] 孟春花,乔永浩,钱勇,等.微贮对油菜秸秆营养成分及其在山羊瘤胃中降解特性的影响[J].南京农业大学学报,2020,43(2):326-332. MENG C H,QIAO Y H,QIAN Y,et al. Effects of microbial fermentation on rape straw nutrients and rumen degradation characteristics in goats[J].Journal of Nanjing Agricultural University,2020,43(2):326-332. (in Chinese)
[18] 靳玲品,刁其玉,屠焰,等.5种紫花苜蓿干草瘤胃降解特性的研究[J].中国草食动物科学,2012(增刊):316-319. JIN L P,DIAO Q Y,TU Y,et al.Study on degradation characteristics of 5 kinds of alfalfa hay in rumen[J].China Herbivore Science,2012(Suppl.):316-319. (in Chinese)
[19] 朱亚骏,于子洋,袁翠林,等.山东省羊主要精饲料瘤胃降解率和小肠消化率的研究[J].中国农学通报,2014,30(17):1-6. ZHU Y J,YU Z Y,YUAN C L,et al.Research about ruminal and small intestinal digestibility of Shandong province mainly concentrates for sheep[J].Chinese Agricultural Science Bulletin,2014,30(17):1-6. (in Chinese)
[20] 汪水平,王文娟,左福元,等.常用饲料原料干物质及蛋白质在大足黑山羊瘤胃内降解规律的研究[J].中国畜牧杂志,2010,46(21):47-52. WANG S P,WANG W J,ZUO F Y,et al.Study on the degradation of dry matter and protein in the rumen of Dazu black goat[J].Chinese Journal of Animal Science,2010,46(21):47-52. (in Chinese)
[21] 王文奇,侯广田,王世昌,等.2种果渣营养物质瘤胃降解率研究[J].饲料研究,2013(8):51-53,60. WANG W Q,HOU G T,WANG S C,et al.Study on degradation rate of 2 kinds of fruit residue nutrients in rumen[J].Feed Research,2013(8):51-53,60. (in Chinese)
[22] 吴仙,韩勇,夏先林,等.不同饲料饲草营养物质瘤胃降解率研究[J].饲料工业,2011,32(15):39-42. WU X,HAN Y,XIA X L,et al.Study on rumen degradability of nutrients of different forage grass[J].Feed Industry,2011,32(15):39-42. (in Chinese)
[23] 李志威,赵静雯,沈思聪,等.尼龙袋法评价香蕉叶单宁对瘤胃降解特性的影响[J].草业学报,2019,28(12):114-123. LI Z W,ZHAO J W,SHEN S C,et al.Effects of tannins in banana leaves on
in situ digestion in dairy cows[J].Acta Prataculturae Sinica,2019,28(12):114-123. (in Chinese)
[24] VANZANT E S,COCHRAN R C,TITGEMEYER E C.Standardization of
in situ techniques for ruminant feedstuff evaluation[J].Journal of Animal Science,1998,76(10):2717-2729.

[25] WEAKLEY D C.Influence of roughage level,ruminal pH and ammonia concentration on ruminal protein degradation and microbial protein synthesis in cattle[D].Ph.D.Thesis.Stillwater Oklahoma:Oklahoma State University,1983.