[1] LONG R J,DING L M,SHANG Z H,et al.The yak grazing system on the
Qinghai-Tibetan plateau and its status[J].The Rangeland Journal,2008,30(2):241-246.
[2] CLARK J H.Lactational responses to postruminal administration of proteins and amino acids[J].Journal of Dairy Science,1975,58(8):1178-1197.
[3] 王洪荣.反刍动物瘤胃酸中毒机制解析及其营养调控措施[J].动物营养学报,2014,26(10):3140-3148. WANG H R.Mechanism analysis and nutritional strategies for prevention of sub-acute ruminal acidosis in ruminants[J].Chinese Journal of Animal Nutrition,2014,26(10):3140-3148.(in Chinese)
[4] 胡丹丹.不同精粗比日粮下奶牛瘤胃发酵与菌群结构及血清生化指标变化的研究[D].硕士学位论文.银川:宁夏大学,2019. HU D D.Study the changes of rumen fermentation,fora structure and serum biochemical parameters on dairy cows with different ratios of concentrate and roughage[D].Master's Thesis.Yinchuan:Ningxia University,2019. (in Chinese)
[5] LIU H J,XU T W,XU S X,et al.Effect of dietary concentrate to forage ratio on growth performance,rumen fermentation and bacterial diversity of Tibetan sheep under barn feeding on the
Qinghai-Tibetan plateau[J].PeerJ,2019,7(2):e7462.
[6] NUGROHO D,SUNARSO S,SEVILLA C C,et al.The effects of dietary neutral detergent fiber ratio from forage and concentrate on the dietary rumen degradability and growth performance of Philippine native goats (
Capra hircus Linn.)[J].International Journal of Science and Engineering,2014,6(1):75-80.
[7] WANG L J,LI Y,ZHANG Y G,et al.The effects of different concentrate-to-forage ratio diets on rumen bacterial microbiota and the structures of Holstein cows during the feeding cycle[J].Animals,2020,10(6):957.
[8] AMAT S,MCKINNON J J,PENNER G B,et al.Effects of dietary sulfur concentration and forage-to-concentrate ratio on ruminal fermentation,sulfur metabolism,and short-chain fatty acid absorption in beef heifers[J].Journal of Animal Science,2014,92(2):712-723.
[9] 王加启,杨红建,莫放,等.NY/T 815-2004肉牛饲养标准[S].北京:中国农业出版社,2004. FENG Y L,WANG J Q,YANG H J,et al.NY/T 815-2004 China feeding standard of beef cattle[S].Beijing:China Agricuture Press,2004. (in Chinese)
[10] 胡令浩.牦牛营养研究论文集[M].西宁:青海人民出版社,1997. HU L H.Yak nutrition by collection research papers[M].Xining:Qinghai People's Publishing House,1997.(in Chinese)
[11] NRC.Nutrient requirements of beef cattle[S].8th ed.Washington,D.C.:National Academy Press,2016.
[12] 冯仰廉,陆治年.奶牛营养需要和饲料成分[M].3版.北京:中国农业出版社,2007. FENG Y L.Nutritional requirements and feed ingredients of dairy cows[M].3rd ed.Beijing:China Agriculture Press,2007. (in Chinese)
[13] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 6435-2014饲料中水分的测定[S].北京:中国标准出版社,2015. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration of the People's Republic of China.GB/T 6435-2014 Determination of moisture in feed stuffs[S].Beijing:Standards Press of China,2015.(in Chinese)
[14] 全国饲料工业标准化技术委员会.GB/T 6432-2018饲料中粗蛋白的测定凯氏定氮法[S].北京:中国标准出版社,2018. National Feed Industry Standardization Technical Committee.GB/T 6432-2018 Determination of crude protein in feeds-Kjeldahl method[S].Beijing:Standards Press of China,2018. (in Chinese)
[15] 中华人民共和国国家质量监督检验检疫总局.GB/T 6436-2002饲料中钙的测定[S].北京:中国标准出版社,2002. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China.GB/T 6436-2002 Determination of calcium in feed stuffs[S].Beijing:Standards Press of China 2014. (in Chinese)
[16] 中华人民共和国国家质量监督检验检疫总局.GB/T 6437-2002饲料中总磷的测定分光光度法[S].北京:中国标准出版社,2002. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China.GB/T 6436-2002 Determination of phosphorus in feed stuffs-spectphotometry[S].Beijing:Standards Press of China 2002. (in Chinese)
[17] VAN SOEST P J,ROBERTSON J B,LEWIS B A.Methods for dietary fiber,neutral detergent fiber,and nonstarch polysaccharides in relation to animal Nutrition[J].Journal of Dairy Science,1991,74(10):3583-3597.
[18] 冯宗慈,高民.通过比色测定瘤胃液氨氮含量方法的改进[J].畜牧与饲料科学,2010,31(增刊):37. FENG Z C,GAO M.Improvement of the Method of Measuring Ammonia N concentrationof rumen liquid by colorimetric determination[J].Animal Husbandry and Feed Science,2010,31(Suppl.):37.(in Chinese)
[19] 高雨飞.高精料日粮条件下烟酸对牛瘤胃微生物区系的影响[D].硕士学位论文.南昌:江西农业大学,2016. GAO Y F.Effects of niacin on microorganism system in the rumen of cattle under high concentrate diet[D].Master's Thesis.Nanchang:Jiangxi Agricultural University,2016. (in Chinese)
[20] 曹庆云,周武艺,朱贵钊,等.气相色谱测定羊瘤胃液中挥发性脂肪酸方法研究[J].中国饲料,2006(24):26-28. CAO Q Y,ZHOU W Y,ZHU G C,et al.Study on the methods of determination of volatile fatty acid in the rumen liquid of lambs by gas chromatography[J].China Feed,2006(24):26-28. (in Chinese)
[21] 王加启.反刍动物营养学研究方法[M].北京:现代教育出版社,2011. WANG J Q.Ruminant nutrition research method[M].Beijing:Modern Education Press,2011.(in Chinese)
[22] 盛英霞.肉牛育肥的主要技术[J].农技服务,2017,34(24):120. SHENG Y X.Main techniques for fattening beef cattle[J].Agricultural Technology Service,2017,34(24):120.(in Chinese)
[23] 李斌昌.日粮精粗比对不同月龄后备奶牛甲烷排放与生长性能和营养物质消化的影响[D].硕士学位论文.兰州:甘肃农业大学,2019. LI B C.Effects of the ratios of concentrates to roughages on methane emission,growth performance and nutrient digestion of replacement heifers at different ages[D].Master's Thesis.Lanzhou:Gansu Agricultural University,2019.(in Chinese)
[24] 高林青,占今舜,胡耀,等.不同精粗比全混合日粮对湖羊生长性能、血清激素浓度和屠宰性能的影响[J].动物营养学报,2019,31(4):1676-1684. GAO L Q,ZHAN J S,HU Y,et al.Effects of total mixed ration with different concentration-roughage ratios on growth performance,serum hormone concentrations and slaughter performance of
Hu sheep[J].Chinese Journal of Animal Nutrition,2019,31(4):1676-1684.(in Chinese)
[25] 徐相亭,王宝亮,程光民,等.不同精粗比日粮对杜泊绵羊生长性能、血清生化指标及经济效益的影响[J].中国畜牧兽医,2016,43(3):668-675. XU X T,WANG B L CHENG G M,et al.Effect of different dietary concentrate to forage ratios on growth performance,serum biochemical and economic benefits of Dorper sheep[J].China Animal Husbandry and Veterinary Medicine,2016,43(3):668-675.(in Chinese)
[26] 琚思思,纪守坤,段春辉,等.不同NDF水平饲粮对羔羊生长性能、营养物质消化、消化道重量及瘤胃乳头发育的影响[J].畜牧兽医学报,2020,51(7):1666-1676. JU S S,JI S K,DUAN C H,et al.Effects of diet with different NDF levels on growth performance,nutrient digestion,digestive tract weight and rumen papilla development of lambs[J].Acta Veterinaria et Zootechnica Sinica,2020,51(7):1666-1676.(in Chinese)
[27] KENNEDY E,O'DONOVAN M,DELABY L,et al.Effect of herbage allowance and concentrate supplementation on dry matter intake,milk production and energy balance of early lactating dairy cows[J].Livestock Science,2008,117(2/3):275-286.
[28] JOHNSON R J,KARUNAJEEWA H.The effects of dietary minerals and electrolytes on the growth and physiology of the young chick[J].The Journal of Nutrition,1985,115(12):1680-1690.
[29] 程光民,徐相亭,刘洪波.饲粮精粗比对育成期杜寒杂交羊生产性能、血清生化指标及经济效益的影响[J].黑龙江畜牧兽医,2017(1):125-127,134. CHENG G M,XU X T,LIU H B.Effect of concentrate to roughage ratio diets on growth performance,serum biochemical and economic benefits[J].Heilongjiang Animal Science and Veterinary Medicine,2017(1):125-127,134. (in Chinese)
[30] LARDY G P,ULMER D N,ANDERSON V L,et al.Effects of increasing level of supplemental barley on forage intake,digestibility,and ruminal fermentation in steers fed medium-quality grass hay[J].Journal of Animal Science,2004,82(12):3662-3668.
[31] KRAUSE K M,OETZEL G R.Inducing subacute ruminal acidosis in lactating dairy cows[J].Journal of Dairy Science,2005,88(10):3633-3639.
[32] 朱昊鹏,郑月,颜培实.精料补饲水平对锦江黄牛生长性能和瘤胃液理化指标的影响[J].畜牧与兽医,2017,49(3):24-29. ZHU H P,ZHENG Y,YAN P S.Effects of different concentrate supplemental levels on production performance,rumen fluid physicochemical index of
Jinjiang cattle[J].Animal Husbandry and Veterinary Medicine,2017,49(3):24-29. (in Chinese)
[33] 张峰.不同氮源对绵羊生长性能、消化代谢及血清生化指标的影响[D].硕士学位论文.保定:河北农业大学,2004. ZHANG F.Effect of different forms nitrogen source on performance the digestion and metabolism and blood biochemical materials in sheep[D].Master's Thesis.Baoding:Agricultural University of Hebei Province,2004.(in Chinese)
[34] 王文娟,汪水平,左福元.反刍动物淀粉消化与葡萄糖吸收研究进展[J].西北农林科技大学学报(自然科学版),2008,36(5):27-34. WANG W J,WANG S P,ZUO F Y.Research progress on starch digestion and glucose absorption in ruminants[J].Journal of Northwest A & F University (Natural Science),2008,36(5):27-34.(in Chinese)
[35] 崔晓鹏,侯生珍,王志有,等.补饲日粮不同精粗比对妊娠后期藏母羊生产性能及血清指标的影响[J].饲料工业,2016,37(13):40-44. CUI X P,HOU S Z,WANG Z Y,et al.Effects of different concentrate to roughage ratios of supplementary feeding diet on production performance and serum biochemical parameters of Tibetan ewes at late stages of pregnancy[J].Feed Industry,2016,37(13):40-44.(in Chinese)
[36] 孙东峰,孙满吉,史印涛,等.不同精料补饲水平对放牧肉牛生长性能的影响[J].中国饲料,2012(20):19-21. SUN D F,SUN M J,SHI Y T,et al.Effects of different concentrate supplementation levels on the growth performance in grazing beef cattle[J].China Feed,2012(20):19-21.(in Chinese)
[37] 翁秀秀.饲喂不同日粮奶牛瘤胃发酵和VFA吸收特性及其相关基因表达的研究[D].博士学位论文.兰州:甘肃农业大学,2013. WENG X X.The study on rumen fermentation,volatile fatty acid absorption characteristics and gene expression in dairy cows receiving different types of diets[D].Ph.D.Thesis.Lanzhou:Gansu Agricultural University,2013.(in Chinese)
[38] 秦正君,王若勇,时国峰,等.日粮精粗比对奶牛瘤胃发酵及生产性能的影响[J].畜牧兽医杂志,2018,37(1):83-85. QIN Z Q,WANG R Y,SHI G F,et al.Effect of dietary concentration and roughage ratio to rumen fermentation and production performance on dairy cow[J].Journal of Animal Science and Veterinary Medicine,2018,37(1):83-85. (in Chinese)
[39] POLYORACH S,WANAPAT M,CHERDTHONG A.Influence of yeast fermented cassava chip protein (YEFECAP) and roughage to concentrate ratio on ruminal fermentation and microorganisms using
in vitro gas production technique[J].Asian-Australasian Journal of Animal Sciences,2014,27(1):36-45.
[40] GIGER-REVERDIN S,RIGALMA K,DESNOYERS M,et al.Effect of concentrate level on feeding behavior and rumen and blood parameters in dairy goats:relationships between behavioral and physiological parameters and effect of between-animal variability[J].Journal of Dairy Science,2014,97(7):4367-4378.
[41] 杨靖,崔巧荣,张力莉,等.日粮精粗比对奶牛瘤胃挥发酸模式及血液糖脂代谢相关指标的影响[J].中国饲料,2019(5):33-35. YANG J,CUI Q R,ZHANG L L,et al.Effects of dietary concentrate to forage ratio on rumen volatile acid pattern and serum indices related with glucose and lipid metabolism in dairy cows[J].China Feed,2019(5):33-35.(in Chinese)
