1)forage to concentrate ratio精粗比
1.Effects of forage to concentrate ratio on dynamic changes of pH, NH_3-N concentration, VFA pattern of rumen fermentation were studied.结果表明,精粗比为65∶35CCA日粮条件下奶牛瘤胃内pH显著低于其它组(P<0 01), 65∶35CCA及50∶50CCA日粮组瘤胃内NH3 N浓度显著高于精粗比30∶70 日粮组(P<0 01),瘤胃内乙酸浓度随精料比例的提高而降低(P= 0 10),丙酸浓度、丁酸浓度及乙酸/丙酸比例差异均为极显著(P<0 01);在不同精粗比日粮条件下,乳脂率差异显著(P<0 01),以30∶70CCA组为最高;产奶量、乳蛋白率及非乳脂固形物含量均呈极显著差异(P<0 01),均以高精料组65∶35CCA组为最高。
2.Forage to concentrate ratio were 30:70, 35:65, 40:60, 45:55, 50:50,55:45, 60:40, 70:30,100:0, respectively.日粮精粗比例对奶牛的生产性能和机体健康有着显著的影响,为了探讨不同精料浓度对奶牛机体内氧化应激和瘤胃内环境稳定性的影响,我们选用5头临床健康的干奶期荷斯坦奶牛(体重为502±20 kg),连续进行9期饲喂试验,前8期每期30d,全精料组试验期为3天,每期分别饲喂9种不同精料水平日粮(精粗比分别为30:70,35:65,40:60,45:55,50:50,55:45,60:40,70:30,100:0),观察奶牛瘤胃内pH值、瘤胃内抗氧化指标、血清中抗氧化指标、瘤胃内纤毛虫以及厌氧真菌数量的变化。
英文短句/例句
1.The Effect of Rumen Metabolic Parameters and Degradation of the Initial Stage of Weaning Calf with Forage to Concentrate Ratio of Diets;日粮精粗比对断奶初期犊牛瘤胃内环境及粗饲料降解的影响
2.Effects of Dietary Concentrate-to-forage Ratio on Chewing Activities of Lactating Dairy Cows日粮精粗比对泌乳奶牛咀嚼活动的影响
3.Effect of different dietary concentrate to forage ratio on rumen morphological structure of Chinese Hostein bull日粮精粗比对荷斯坦公犊瘤胃组织结构的影响
4.Study on Storage Effect of Baled Total Mixed Rations (TMR) with Different Forage to Concentrate Ratios and Moisture不同精粗比和含水量裹包TMR贮存效果研究
5.Comparative Study on the Effect of Dairy Cows Fed Diets Differing in Corn Silage and Rice Straw Silage Concentrate-to-forage Ratios;不同精粗比玉米青贮和水稻秸青贮饲喂奶牛效果比较研究
6.Study on the Nitrogen Metabolism and Limiting Amino Acids of Lactating Dairy Cows Fed Diets Differing in Forage to Concentrate Ratios;不同精粗比日粮泌乳奶牛氮素代谢及限制性氨基酸的研究
7.Effects of Forage to Concentrate Ratio on Digestion Metabolism and Milk Fatty Acid Composition in Dairy Cows;日粮精粗比对奶牛消化代谢及乳脂肪酸成分影响的研究
8.Effects of Different Concentrate to Forage Ration in TMR on Digestive Metabolism of Nutrient Matter and Production Performance in Sika Deer;不同精粗比全混合日粮（TMR）对梅花鹿消化代谢及生产性能的影响
9.The Effect on Alimentary Tract pH and Digestive Activity of Fattening Lamb in Different Rate of Concentrate to Roughage;饲粮精粗比对育肥羔羊消化道pH和消化酶活性的影响
10.Effects of Forage to Concentrate Ratio on Homeostasis of Rumen and Oxidative Stress in Cows;不同精粗比日粮对奶牛机体氧化应激和瘤胃内环境稳定性的影响
11.Effects of Different Harvesting Period and Concentrate to Forage Ratio on Ruminal in Situ Disappearance of Nutritients in Sheep;牧草收割期和日粮精粗比对绵羊瘤胃内营养物质降解的影响
12.Effect of Different Levels of Forage to Concentrate Ratio on Growth and Beef Quality in Young Holstein Bulls日粮精粗比对荷斯坦青年公牛生长和肉质的影响
13.Effects of Defaunation on Ruminal Microbes and Digestibility of Feed in Sheep with Different Ratio of Concentrate to Roughage不同精粗比下驱除原虫对绵羊瘤胃微生物区系及饲料降解的影响
14.Influences of Total Mixed Diets with Different Concentrate-Roughage Ratio on pH and Activity of Digestive Enzymes in Alimentary Canal of Fattening Lambs不同精粗比全混合饲粮对肥育羔羊消化道pH和消化酶活性的影响
15.Effects of Dietary Concentration to Forage Rate on Microbial Protein Recycling in Rumen of Goats日粮精粗比对山羊瘤胃内微生物蛋白微循环的影响
16.Analysis and comparison of two technical processes for recovery of coarse concentrate slime两种粗精煤泥回收工艺的分析与比较
17.A little bracing roughness is better than spoiling him.令人精神振作的微弱粗暴比娇宠他要好得多。
18.On a more refined level, we can distinguish degrees of roughness, intensity and shade of color.在比较精确的水平上，我们可以区别粗糙度，强度和色度。
相关短句/例句
ratio of concentrate to roughage精粗比
1.The effects of different dietary ratio of concentrate to roughage on rumen fungi growth and fermentation parameters using dual effluent continuous culture system;持续瘤胃模拟法研究不同日粮精粗比对瘤胃真菌生长和发酵参数的影响
3)dietary concentrate-to-forage ratio日粮精粗比
1.Effects of dietary concentrate-to-forage ratio on rumen fermentation and performance of dairy cows;日粮精粗比对奶牛瘤胃发酵及泌乳性能的影响
2.Effects of dietary concentrate-to-forage ratio on the activity of ruminal celluolytic enzyme and blood parameters of lactating dairy cows;日粮精粗比对泌乳奶牛瘤胃纤维降解酶活性及血液指标的影响
3.Effects of dietary concentrate-to-forage ratio on digestion of nutrients in lactating dairy cows;日粮精粗比对泌乳奶牛养分消化的影响
4)forage to concentrate ration日粮精粗比
1.【Method】 Five healthy cows during the dry period were used to study the effects of forage to concentrate ration on dynamic change of rumen pH and VFA in rumen and serum.【目的】研究不同日粮精粗比条件下奶牛瘤胃pH,挥发性脂肪酸(VFA,主要包括乙酸、丙酸、丁酸)浓度和血清乙酸、丙酸、丁酸浓度的动态变化规律。
2.Different forage to concentrate ration has a significant impact on production and health of cow,high-forage diet can result in nutrition metabolism disease and reduce production frequently.日粮精粗比对奶牛的的生产性能和机体健康有着显著的影响,长期饲喂高精料饲粮易引起奶牛营养代谢病的发生,导致奶牛生产性能的下降。
5)Concentrate hay proportions精料粗料比
6)concentrate:roughage ration饲粮精粗比
延伸阅读
粗加工，精加工铣削基础知识标准一般概念粗加工粗加工是以快速切除毛坯余量为目的，在粗加工时应选用大的进给量和尽可能大的切削深度，以便在较短的时间内切除尽可能多的切屑。粗加工对表面质量的要求不高，刀具的磨钝标准一般是切削力的明显增大，即以后刀面的磨损宽度VB为标准。 精加工在精加工时最主要考虑的是工件表面质量而不是切屑的多少，精加工时通常采用小的切削深度，刀具的副切削刃经常会有专门的形状，比如修光刃。根据所使用的机床、切削方式、工件材料以及所采用的刀具，可使表面粗糙度达到Ra1.6µ；m的水平，在极好的条件下甚至可以达到Ra0.4µ；m。在精加工时刀具后刀面的磨损量不再是主要标准，它将让位于工件的表面质量。2.铣削方式顺铣顺铣逆铣顺铣时切削点的切削速度方向在进给方向上的分量与进给速度方向一致。顺铣是为获得良好的表面质量而经常采用的加工方法。它具有较小的后刀面磨损、机床运行平稳等优点，适用于在较好的切削条件下加工高合金钢。使用说明：不宜加工表面具有硬化层的工件(如铸件)，因为这时的刀刃必须从外部通过工件的硬化表层，从而产生较强的磨损。如采用普通机床加工，应设法消除进给机构的间隙。逆铣逆铣时切削点的切削速度方向在进给方向上的分量与进给速度方向相反。鉴于采用这种方式会产生一些副作用，诸如后刀面磨损加快从而降低刀片耐用度，在加工高合金钢时产生表面硬化，表面质量不理想等，所以的加工中不常使用。使用说明：必须将工件完全夹紧，否则有抬起工作台的危险。
