[1] PIACENTE S,PIZZA C,OLESZEK W.Saponins and phenolics of
Yucca schidigera Roezl:chemistry and bioactivity[J].Phytochemistry Reviews,2005,4(2/3):177-190.
[2] PATEL S.Yucca:a medicinally significant genus with manifold therapeutic attributes[J].Natural Products and Bioprospecting,2012,2(6):231-234.

[3] CHEEKE P R,PIACENTE S,OLESZEK W.Anti-inflammatory and anti-arthritic effects of
Yucca schidigera:a review[J].Journal of Inflammation,2006,3:6.
[4] CHEEKE P R.Actual and potential applications of
Yucca schidigera and
Quillaja saponaria saponins in human and animal nutrition[C]//OLESZEK W,MARSTON A.Saponins in food,feedstuffs and medicinal plants.Proceedings of the phythochemical society of Europe.Dordrecht:Springer,2000.
[5] LEONARD S S,XIA C,JIANG B H,et al.Resveratrol scavenges reactive oxygen species and effects radical-induced cellular responses[J].Biochemical and Biophysical Research Communications,2003,309(4):1017-1026.

[6] XU M,RINKER M,MCLEOD K R,et al.
Yucca schidigera extract decreases
in vitro methane production in a variety of forages and diets[J].Animal Feed Science and Technology,2010,159(1/2):18-26.
[7] WANG C J,WANG S P,ZHOU H.Influences of flavomycin,ropadiar,and saponin on nutrient digestibility,rumen fermentation,and methane emission from sheep[J].Animal Feed Science and Technology,2009,148(2/3/4):157-166.
[8] LIU C L,LI Z Q.Effect of levels of
Yucca schidigera extract on ruminal fermentation parameters,digestibility of nutrients and growth performance in sheep[J].Advanced Materials Research,2011,343/344:655-660.
[9] SINGER M D,ROBINSON P H,SALEM A Z M,et al.Impacts of rumen fluid modified by feeding
Yucca schidigera to lactating dairy cows on
in vitro gas production of 11 common dairy feedstuffs,as well as animal performance[J].Animal Feed Science and Technology,2008,146(3/4):242-258.
[10] NARVAEZ N,WANG Y X,MCALLISTER T.Effects of extracts of
Humulus lupulus (hops) and
Yucca schidigera applied alone or in combination with monensin on rumen fermentation and microbial populations in vitro[J].Journal of the Science of Food and Agriculture,2013,93(10):2517-2522.

[11] HOLTSHAUSEN L,CHAVES A V,BEAUCHEMIN K A,et al.Feeding saponin-containing
Yucca schidigera and
Quillaja saponaria to decrease enteric methane production in dairy cows[J].Journal of Dairy Science,2009,92(6):2809-2821.

[12] VAN ZIJDERVELD S M,DIJKSTRA J,PERDOK H B,et al.Dietary inclusion of diallyl disulfide,yucca powder,calcium fumarate,an extruded linseed product,or mediumchain fatty acids does not affect methane production in lactating dairy cows[J].Journal of Dairy Science,2011,94(6):3094-3104.

[13] LI W,POWERS W.Effects of saponin extracts on air emissions from steers[J].Journal of Animal Science,2012,90(11):4001-4013.

[14] CANUL-SOLIS J R,PIÑEIRO-VÁZQUEZ A T,BRICEÑO-POOT E G,et al.Effect of supplementation with saponins from
Yucca schidigera on ruminal methane production by Pelibuey sheep fed
Pennisetum purpureum grass[J].Animal Production Science,2014,54(10):1834-1837.

[15] WALLACE R J,ARTHAUD L,NEWBOLD C J.Influence of
Yucca shidigera extract on ruminal ammonia concentrations and ruminal microorganisms[J].Applied and Environmental Microbiology,1994,60(6):1762-1767.
[16] LILA Z A,MOHAMMED N,KANDA S,et al.Effect of sarsaponin on ruminal fermentation with particular reference to methane production
in vitro[J].Journal of Dairy Science,2003,86(10):3330-3336.

[17] LILA Z A,MOHAMMED N,KANDA S,et al.Sarsaponin effects on ruminal fermentation and microbes,methane production,digestibility and blood metabolites in steers[J].Asian-Australasian Journal of Animal Sciences,2005,18(12):1746-1751.

[18] CIESLAK A,ZMORA P,PERS-KAMCZYC E,et al.Effects of tannins source (
Vaccinium vitis idaea L.) on rumen microbial fermentation
in vivo[J].Animal Feed Science and Technology,2012,176(1/2/3/4):102-106.
[19] PEN B,SAR C,MWENYA B,et al.Effects of
Yucca schidigera and
Quillaja saponaria extracts on
in vitro ruminal fermentation and methane emission[J].Animal Feed Science and Technology,2006,129(3/4):175-186.
[20] LOVETT D K,STACK L,LOVELL S,et al.Effect of feeding
Yucca schidigera extract on performance of lactating dairy cows and ruminal fermentation parameters in steers[J].Livestock Science,2006,102(1/2):23-32.
[21] PATRA A K,STIVERSON,YU Z.Effects of quillaja and yucca saponins on communities and select populations of rumen bacteria and archaea,and fermentation
in vitro[J].Journal of Applied Microbiology,2012,113(6):1329-1340.

[22] SEN S,MAKKAR H P,MUETZEL S,et al.Effect of
Quillaja saponaria saponins and
Yucca schidigera plant extract on growth of
Escherichia coli[J].Letters in Applied Microbiology,1998,27(1):35-38.

[23] MARZOCCO S,PIACENTE S,PIZZA C,et al.Inhibition of inducible nitric oxide synthase expression by yuccaol C from
Yucca schidigera Roezl[J].Life Sciences,2004,75(12):1491-1501.

[24] WENZIG E M,OLESZEK W,STOCHMAL A,et al.Influence of phenolic constituents from
Yucca schidigera bark on arachidonate metabolism
in vitro[J].Journal of Agriculture and Food Chemistry,2008,56(19):8885-8890.

[25] VL ?KOVÁ R,SOPKOVÁ D,ANDREJ ?ÁKOVA Z,et al.Dietary supplementation of yucca (
Yucca schidigera) affects ovine ovarian functions[J].Theriogenology,2017,88:158-165.
[26] CABUK M,ALCICEK A,BOZKURT M,et al.Effect of
Yucca schidigera and natural zeolite on broiler performance[J].International Journal of Poultry Science,2004,3(10):651-654.

[27] CHEPETE H J,XIN H,MENDES L B,et al.Ammonia emission and performance of laying hens as affected by different dosages of
Yucca schidigera in the diet[J].Journal of Applied Poultry Research,2012,21(3):522-530.

[28] PANETTA D M,POWERS W J,XIN H,et al.Nitrogen excretion and ammonia emissions from pigs fed modified diets[J].Journal of Environmental Quality,2006,35(4):1297-1308.

[29] MATUSIAK K,OLEKSY M,BOROWSKI S,et al.The use of
Yucca schidigera and microbial preparation for poultry manure deodorization and hygienization[J].Journal of Environmental Management,2016,170:50-59.
[30] ONBA?ILAR E E,ERDEM E,ÜNAL N,et al.Effect of
Yucca schidigera spraying in different litter materials on some litter traits and breast burn of broilers at the fifth week of production[J].Kafkas Universitesi Veteriner Fakultesi Dergisi,2013,19(5):749-753.
[31] LUNDEEN T.Yucca extract improves feed efficiency,decreases abdominal fat in broilers[J].Feedstuffs,2000,72(33):9.
[32] PRATT E V,ROSE S P,KEELING A A.Effect of ambient temperature on losses of volatile nitrogen compounds from stored laying hen manure[J].Bioresource Technology,2002,84(2):203-205.

[33] ALAGAWANY M,ABD EL-HACK M E,EL-KHOLY M S.Productive performance,egg quality,blood constituents,immune functions,and antioxidant parameters in laying hens fed diets with different levels of
Yucca schidigera extract[J].Environmental Science and Pollution Reseaarch,2016,23(7):6774-6782.

[34] WANG J P,KIM I H.Effect of caprylic acid and
Yucca schidigera extract on production performance,egg quality,blood characteristics,and excreta microflora in laying hens[J].British Poultry Science,2011,52(6):711-717.

[35] GURBUZ E,BALEVI T,KURTOGLU V,et al.Use of yeast cell walls and
Yucca schidigera extract in layer hens' diets[J].Italian Journal of Animal Science,2011,10(2):134-138.
[36] 苏俊玲,史彬林,张静,等.丝兰提取物对肉仔鸡生长性能、屠宰性能和肉品质的影响[J].饲料研究,2015(18):23-26.
[37] ALFARO D M,SILVA A V F,BORGES S A,et al.Use of
Yucca schidigera extract in broiler diets and its effects on performance results obtained with different coccidiosis control methods[J].The Journal of Applied Poultry Research,2007,16(2):248-254.

[38] CHEEKE P R,RANADE A S.Natural saponin-containing additive reduces feeding costs[J].Asian Poultry Magazine,2013,2013:74-76.
[39] SAHOO S P,KAUR D,SETHI A P S,et al.Evaluation of
Yucca schidigera extract as feed additive on performance of broiler chicks in winter season[J].Veterinary World,2015,8(4):556-560.

[40] BEGUM M,HOSSAIN