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學習經歷

2013.06-2013.07，瑞士蘇黎世聯邦理工學院農業科學研究所動物營養室，訪問學者

2011.03-2012.03，美國威斯康辛州立大學奶業科學系/美國農業部奶業與牧草研究中心，訪問學者

2009年4-5月，澳大利亞西澳大學，訪問學者

2008年10月－11月 英國牛津大學/麥考利土地利用研究所，訪問學者

2004.9-2007.6 在中國農業大學，獲農學博士學位

2001.9-2004.7 在在寧夏大學，獲農學碩士學位

1997.9-2001.6 在寧夏農學院，獲農學學士學位

工作經歷

2013.05-今， 蘭州大學生命科學學院農業生態所 教授 博士生導師

2009.05-2013.05，蘭州大學生命科學學院農業生態所 副教授 碩士生導師

2007.07-2009.05蘭州大學生命科學學院干旱與草地生態教育部重點實驗室 講師

教學及指導研究生情況

目前在讀研究生6名。

發表論文及專著

學術論文：

Ke W.C., F.Y. Yang，Dan Undersander，X.S.Guo*.2015. Fermentation characteristics, aerobic stability,proteolysis and lipid composition of alalfa silage ensiled with apple or grape pomace. Animal Feed Science and Technology,in press.

X. S. Guo, Ruijun Long, Michael Kreuzer, Luming Ding, Zhanhuan Shang, Ying Zhang, Yang Yang and Guangxin Cui. 2014. Importance of functional ingredients in yak milk derived food from alpine region on health of Tibetan nomads living under high altitude stress-A review. Critical Reviews in Food Science and Nutrition 54, 292-302

X. S. Guo, D. J. Undersander, D. K. Combs. 2013. Effects of Lactobacillus inoculants and forage dry matter on the fermentation and aerobic stability of ensiled mixed-crop tall fescue and meadow fescue. Journal of Dairy Science 96 (3)，1735-1744.

Ding. WR, RJ. Long, and X.S. Guo*. 2013. Effects of plant enzyme inactivation and sterilization on lipolysis and proteolysis in alfalfa silage. Journal of Dairy Science 96 (4), 2536-2543.

W.R. Ding, X.S. Guo*, Kazuo Ataku. 2013. Characterization of peptides in ensiled alfalfa treated with different chemical additives. Animal Science Journal 84(12), 774-781.

L. Tao, X.S. Guo*, H. Zhou, D.J. Undersander. 2012. Characteristics of proteolytic activities of endo- andexopeptidase in alfalfa herbage and their implications for proteolysis in ensilage. Journal of Dairy Science，95, 4591-4595.

X.S. Guo, L.M. Ding, R. J. Long, B. Qi, Z.H. Shang and M. L. Lian. 2012. Changes of chemical composition to high altitude result in Kobresia littledalei growing in alpine meadow of the Tibet Plateau with high feeding values to local herbivores. Animal Feed Science and Technology 173, 186-193.

X. S. Guo, Y. Zhang, J. W. Zhou, R. J. Long, G. S. Xin, B. Qi, L. M. Ding, H. C. Wang. 2012. Nitrogen metabolism and recycling in yaks (Bos grunniens) offered a forage:concentrate diet differing in N composition. Animal Production Science，52, 287-296.

Y. Zhang, J.W. Zhou, X.S. Guo, R.J. Long. 2012. Influences of dietary nitrogen and non-fiber carbohydrate levels on apparent digestibility, rumen fermentation and nitrogen utilization in growing yaks fed low quality forage based-diet. Livestock Science, 147, 139-147.

Lian Tao, Menglu Li, Xusheng Guo, Fuyu Yang and He Zhou, 2012. Effect of Epiphytic Microorganisms and Exogenous Lactic Acid Bacteria on the Formation of Non-protein Nitrogen During the Ensiling of Alfalfa. Journal of Animal and Veterinary Advances, 11: 2181-2186.

X. S. Guo, D. J. Undersander, D. K. Combs. 2012. Effects of Lactobacillus inoculants and forage dry matter on the fermentation and aerobic stability of ensiled mixed-crop tall fescue and meadow fescue. Journal of Animal Science.90, Suppl. 3/Journal of Dairy Science. 95, Suppl. 2, 534-535 (Abstract).

X. S. Guo, W. Cheng, L. Tao, Y. Zhu and H. Zhou. 2012. Contribution of endo and exopeptidases to formation of nonprotein N during ensiling of alfalfa. In: Proceedings of the XVI International Silage Conference, July 2-4, 2012, Hameenlina, Finland. p. 58-59 (Oral presentation).

L. Tao, Z. Yu, X.S. Guo and H. Zhou. 2011. Ensiling and in vitro digestibility characteristics of Ceratoides arborescens treated with lactic acid bacteria inoculants and cellulose. African Journal of Biotechnology,10(66), 14947-14953.

L. Tao, H. Zhou, X.S. Guo*, R.J. Long, Y. Zhu. 2011. Contribution of Exopeptidase to the Formation of Nonprotein Nitrogen during the Ensiling process of Alfalfa. Journal of Dairy Science 94, 3928-3935.

X.S. Guo, W. Cheng, F.Y. Yang, H. Zhou. 2011. Contribution of Endopeptidase to the Formation of Nonprotein Nitrogen during the Ensiling process of Alfalfa. Animal Feed Science and Technology, 168, 42-50.

G.S. Xin, R.J. Long, X.S. Guo, J. Irvine, L.M. Ding, L.L. Ding and Z.H. Shang. 2011. Blood mineral status of grazing Tibetan sheep in the Northeast of the Qinghai–Tibetan Plateau. Livestock Science. 136, 102-107.

Y. Zhu, C.S. Bai, X.S. Guo*, Y.L. Xue, Kazuo Ataku. 2011. Nutritive value of corn silage in mixture with Garden Pea. Animal Production Science 51, 1117-1122.

Fang, X. W., Turner, N. C., Li, F. M., Li, W. J., Guo, X. S. 2011. Caragana korshinskii seedlings maintain positive photosynthesis during short-term, severe drought stress. Photosynthetica, 49(4), 603-609.

Wang Hucheng, Ruijun Long, Juan Boo Liang, Xusheng Guo, Luming Ding and Zhanhuan Shang. 2011. Comparison of Nitrogen Metabolism in Yak (Bos grunniens) and Indigenous Cattle (Bos taurus) on the Qinghai-Tibetan Plateau. Asian-Australasian Journal of Animal Science, 24(6):766-773

Xin Guo-sheng, Hu Zheng, Zhou Wei, Yang Zhi-qiang, Guo Xu-sheng, Long Rui-jun. Determination of Inorganic Elements in the Soil-Grass-Animal System by Sealed Microwave Digestion ICP-AES .Spectroscopy and Spectral Analysis, 2010, 30(2), pp 546-550

Ding Xue-zhi, Long Rui-jun, Mi Jian-dui, Guo Xu-sheng. Measurement of Methane and Carbon Dioxide Emissions from Ruminants Based on the NDIR Technique. Spectroscopy and Spectral Analysis, 2010, 30(6), pp 1503-1506

Yu Zhu, Naoki Nishino, X.S. Guo*. Chemical changes during ensilage and in sacco degradation of two tropic grasses: Rhodesgrass and Guineagrass treated with cell wall degrading enzymes. Asian-Australasian Journal of Animal Science. 2010, 24, 214-221.

Guo-xusheng, Shang-zhanhuan, Long-ruijun. Progress of Application of Near Infrared Reflectance Spectroscopy in the Study of Ruminant Nutrition. Spectroscopy and Spectral Analysis. 2009，29(3):641-646.

H. Wang, R. Long, W. Zhou, X. Li, J. Zhou and X.S. Guo. A comparative study on urinary purine derivative excretion of yak (Bos grunniens), cattle (Bos taurus), and crossbred (Bos taurus x Bos grunniens) in the Qinghai-Tibetan plateau, China. J. Anim Sci. 2009. 87:2355-2362.

Shang Z. H., Guo X. S., Long R. J. Spectroscopy Technique and Ruminant Methane Emissions Accurate Inspecting. Spectroscopy and Spectral Analysis. 2009，29(3):740-744

Ding W. R., Gan Y. M., Guo X.S. Yang F.Y. Application of Near Infrared Reflectance Spectroscopy Technique in Evaluation of Hay Quality. Spectroscopy and Spectral Analysis. 2009，29(2):358-361

X.S. Guo, W.R. Ding, H. Zhou. Characterization of protein fractions and amino acids in ensiled alfalfa treated with different chemical additives. Animal Feed Science and Technology, 2008，142，89-98.

X.S. Guo, H. Zhou and W.R. Ding. Fuzzy comprehensive evaluation on the quality of different mixed feeds for fattening lambs by using in vitro method. Livestock Science, 2008，115，137-143

R. J. Long, L. M. Ding, Z. H. Shang, X. S. Guo. The yak grazing system on the Qinghai-Tibetan plateau and its status. The Rangeland Journal. 2008, 30:241–246

X. S. Guo, Ruijun Long, Luming Ding, Wolfgang Bayer. Goat Products, Breeding Objectives and Flock Structure on the Tibetan Plateau. In: Multifunctional Grasslands in a Changing World. Organizing Committee of 2008 IGC/IRC (eds.) Proceeding of the ⅩⅪInternational Grassland Conference and Ⅷ International Rangeland conference, Hohhot, China. 2008, Vol.Ⅱ,105.

X.S. Guo, H. Zhou, and Y. Zhu. Changes in the distribution of N and plant enzymatic activity during ensilage of lucerne treated with different additives. Grass and Forage Science, 2007, 1: 35-43.

X.S. Guo, W.R. Ding, H. Zhou. Protein fractions (Cornell system) of lucerne dried or ensiled with different additives. Journal of Animal and Feed Sciences, 2007，16 (suppl.2), 261-265

X.S. Guo, H. Zhou. Effect of different additives on nitrogen distribution of alfalfa silage. In: Long P.G. and Z.B. Nan (eds.) Proceeding of the 2th China-Japan-Korea international Grassland Conference, Lanzhou, China, 2006, 47-48.

專著：

1.參編“十一五”國家重點出版圖書《10000個科學難題》（農業卷），“畜牧學”部分——豆科牧草青貯中蛋白的水解與抑制，985-988頁。科學出版社，2011年出版。

2.參編日文專著《最新飼料青貯技術-青貯飼料及TMR的調制與飼喂》，日本酪農學園大學出版社，2012年出版。主編：安宅一夫 教授。

3.參編英文專著《Rangeland Degradation and Recovery in China's Pastoral Lands》,Edited by Victor R. Squares, Lu Xinshi, Lu Qi, Wang Tao and Yang Youlin. CABI,2009.

研究方向

目前主要從事的研究方向：

青藏高原乳酸菌種質資源發掘、創新與利用；
飼料青貯技術及營養價值評價；
藏系反芻家畜營養代謝與環境適應。
項目成果 曾先后主持與參加國家及省部級等項目10余項，參編中文、英文和日文專著各一部。目前發表科技論文70余篇，其中SCI論文30余篇。獲國家發明專利2項，實用新型專利3項。

主持與參加的科研項目：

甘肅省科技支撐計劃項目“紫花苜蓿青貯工藝及高效飼喂奶牛的技術研究與示范”（1304NKCA124，2013-2015）-主持
國家自然科學基金面上項目“青藏高原牧草附著乳酸菌的遺傳多樣性及其飼料青貯應用的基礎研究”（31272486,2013-2016）-主持
國家公益性（農業）行業專項“飼草青貯工藝技術及配套設施裝備的研究與示范”研究任務“高熱高濕區黑麥草青貯技術研究與示范”（2013-2016）-主持
教育部新世紀優秀人才支持計劃資助項目“青藏高原傳統發酵牦牛酸奶中乳酸菌的遺傳多樣性及生物功能評價”（NET-11-0209，2012-2014)
“十二五”農村領域國家科技計劃課題“優質牧草資源開發與多元化草產品加工利用關鍵技術研究與集成示范”（2011BAD17B02，2012-2015）-參加
國家自然科學基金面上項目“牦牛適應高寒營養脅迫的氮代謝機制”（31170378，2012-2015）—副主持
國家自然科學基金青年基金“苜蓿青貯中蛋白降解酶的種類、特性及其作用機理（30800800，2009-2011）”—主持
教育部博士點基金新教師項目“苜蓿青貯過程中蛋白的降解特性研究”（200807301008，2009-2011）—主持
蘭州大學中央高校基本科研業務費專項資金資助項目“牦牛適應高寒營養脅迫的氮代謝機制”（lzujbky-2009-46,2010.1-2010-12）-主持
蘭州大學干旱與草地生態教育部重點實驗室開放基金“青藏高原不同海拔梯度與牧草中乳酸菌多樣性的相關機制研究”（2009.7-2011.6）-主持
“十一五”國家科技支撐計劃項目“西藏牦牛良種選育、高校養殖及產業化開發研究”課題“飼草生產體系研究（2007BAD63B04,2007-2010）”—參加
農業部公益性行業科研專項“人工草地優質牧草生產技術研究與示范”子課題（編號： nyhyzx07-22；時間：2007-2010）—主持
歐盟項目：Rangeland enclosure on the Tibetan Plateau of China: Impacts on pastoral livelihoods, markerting, livestock productivity and rangeland biodiversity(INCO-032350; 2007-2010)-參加
榮譽、獲獎 2011年入選教育部“新世紀優秀人才支持計劃”。

社會工作

SCI期刊Grassland Science和Archives of Animal Nutrition編委。

中國草學會青年學術委員會副主任委員；國家牧草產業科技創新戰略聯盟副秘書長。

SCI期刊J Dairy Sci., Anim Feed Sci. Techni., Anim Prod.Sci., Appl. Envrion. Microb等雜志審稿人。