2) 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。
3) 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
4) 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
5) 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。
6) Concentrate hay proportions
精料粗料比
补充资料：精粗
1.亦作"精麄"。亦作"精麤"。 2.细微和粗大。 3.精密和粗疏。 4.精良和粗劣。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条