故乡说柳     

欧阳克俭 《广西林业》1995,(5)

故乡的柳树很多,溪畔、池沿、桥头、堤岸、路边、宅旁……,随处都可见到。婀娜、柔丽、端庄、秀明,柳树,已成为故乡的一道必不可少的风景,代表一个生机勃发的季节。 熹微晨光中,柳树青如处子;西阳斜去,梢袅含烟;夜深露重,则玑珠剔透;轻风拂梦,再幻作一瀑青丝。从  相似文献   

微生物制剂对稻草感官品质及营养价值影响     

王博  许宇薇  瞿明仁  游金明  欧阳克蕙  宋小珍  易中华 《饲料研究》2012,(7):8-10

选用A、B和C 3种微生物制剂及其组合对稻草进行微贮试验,设7个处理组和1个对照组,试验期60 d,对微贮稻草进行感官品质评定和实验室指标评定,结果表明:1)添加微生物制剂及其组合提高了稻草的感官品质,改善稻草适口性。2)添加微生物制剂及其组合显著提高了稻草CP、EE和水溶性糖含量,显著降低了干物质、有机物(OM)、中性洗涤纤维、酸性洗涤纤维和氨氮/总氮比值,提高稻草营养价值。3)在试验条件下,用微生物制剂处理稻草,单独使用以C制剂最好,联合试验以A+B+C组合最好,为在实际生产中的推广应用提供依据。  相似文献   

转换场景式教学方法在《饲料与饲养学》教学中的运用初探     

欧阳克蕙  瞿明仁  傅月华 《江西农业大学学报》2000,22(6):150-152

兴趣是学习的最好老师.美国有一项调查表明,兴趣的重要性对成年人而言更甚于儿童.毋庸讳言的是,在我国的大学教育中,对这一点是重视不够的.  相似文献   

铬的生物学功能及其应用研究进展   总被引：1，自引：0，他引：1  

王文君  欧阳克蕙 《国外畜牧学(猪与禽)》1999,(6):24-27

自１７９７年法国化学家Ｖａｕｐｕｅｌ发现铬元素（Ｃｈｒｏｍｉｕｍ，Ｃｒ）以来，在很长的一段时间内，铬被认为是有毒有害的元素，甚至是致癌物质。直到１９５７年Ｓｃｈｗａｒｚ等提出了啤酒酵母中含有葡萄糖耐受因子（ＧｌｕｃｏｓｅＴｏｌｅｒａｎｃｅＦａｃｔｏｒ，简称ＧＴＦ）的假说，而１９５９年他们又证实了ＧＴＦ的重要活性成分是Ｃｒ３＋之后，才揭开了铬广阔的研究及应用前景。铬在人类营养中的研究始于１９７７年（Ｊｅｅｊｅｅｂｏｙ，１９７７），在动物营养中的研究始于本世纪６０年代以后。而对畜禽铬的营养研究始于９…  相似文献   

江西省牛羊产业发展现状及对策     

陈杰  郭昱  高振  熊小文  温庆琪  瞿明仁  王文君  欧阳克蕙 《江西畜牧兽医杂志》2019,(1)

<正>随着人们的生活水平逐渐提高,饮食结构的进一步优化和调整,牛羊肉以高蛋白、低脂肪、低胆固醇等营养特点逐渐走进寻常人家的餐桌,并且越来越受消费者喜爱。江西位于中国东南部,是一个传统的农业省份,工业基础薄弱,经济欠发达。但是江西省内牛羊品种多,饲草资源丰富,气候湿润,光照  相似文献   

湖南浏阳市室外发酵床养猪考察启示     

赖贻奎  董闽鲜  周永生  欧阳克蕙 《广东畜牧兽医科技》2012,37(2):20-22

近年来,国家对畜禽养殖污染问题日益重视,并每年安排资金用于畜禽养殖场粪污治理,特别是生猪养殖安排的项目和资金最多,如生猪规模养殖场（小区）标准化项目、大中型沼气项目等,这些项目在设计和建设时要求大部分资金用于粪污治理设施建设。  相似文献   

Changes of Rumen Microbiota Density and Physicochemical Properties at Different pH北大核心CSCD     

张丽李川邱清华张健陈薪芋许兰娇赵向辉李艳娇梁欢欧阳克蕙 《动物营养学报》2023,(1):450-459

The aim of this experiment was to investigate the changes of rumen microbiota density and physicochemical properties at different pH. Five Holstein cows in dry milk period were selected as rumen fluid donors. Using in vitro method, five treatments were set according to the criteria of rumen acidosis, and the pH of culture medium was 6.5, 5.8, 5.5, 5.2 and 5.0, respectively, with five replicates in each treatment. After three hours of incubation, the changes of rumen microbiota density and physicochemical properties were measured. The results showed as follows: 1) with the decrease of pH, the rumen microbiota density showed a fluctuation change of first decreasing, then increasing and then decreasing, and the microbiota density in pH 5.8 treatment was significantly lower than that in pH 6.5 treatment (P<0.05). When pH was 5.2, the rumen microbiota density was the highest, which was significantly higher than that in the other treatments (P<0.05). 2) With the decrease of pH, the intracellular H+-ATPase activity in rumen microbiota was firstly increased and then decreased, but there was no significant difference among all treatments (P>0.05). 3) The intracellular ATP content in rumen microbiota was not significantly affected by different pH treatments (P>0.05). 4) With the decrease of pH, the intracellular protein content in rumen microbiota was gradually increased (P<0.05). 5) With the decrease of pH, the intracellular pH (pHi) and cellular transmembrane pH difference (ΔpH) in rumen microbiota were firstly increased and then decreased, and the pHi and ΔpH in pH 5.5 and 5.2 treatments were significantly higher than those in the other three treatments (P<0.05). 6) With the decrease of pH, the cell membrane permeability of rumen microbiota was gradually increased, except for pH 5.8 treatment, the other treatments were significantly higher than pH 6.5 treatment (P<0.05). In conclusion, the rumen microbiota can increase the intracellular H+-ATPase activity and protein content, consume ATP, and change pHi and ΔpH in response to external pH decline. When pH decreases to 5.5, the membrane permeability and pHi of rumen microbiota increase significantly, indicating that they are running to be subjected to more serious acid stress. The density of rumen microbiota fluctuates with the decrease of pH, and when pH decreases to 5.2, the density of rumen microbiota is the highest. © 2023 Authors. All rights reserved.  相似文献   

武汉园林花木根结线虫的发生及其防治技术     

蒋太平 欧阳克芳  夏文胜刘超 董立坤 《园林科技》2007,(4):24-26

记述了危害园林花木的根结线虫的主要种类、发生规律及危害特点并详细介绍了根结线虫寄主范围。根结线虫在武汉一年发生五代以上,以卵和幼虫在寄主内或土壤中越冬。结合多年防治实践,提出根结线虫的防治措施和技术。  相似文献   

烟酸对高精料饲粮肥育肉牛生长性能及血清生化指标的影响     

欧阳克蕙  鲁友友  瞿明仁  黎观红  游金明  熊小文 《动物营养学报》2012,(9):1764-1769

本文旨在研究高精料饲粮中添加烟酸对肥育肉牛生长性能、养分表观消化率和血清生化指标的影响。选择体况良好、体重(402.2±25.4)kg的杂交公牛[西门塔尔()×中国黄牛(♀)]24头,随机分成4组,每组6头牛。Ⅰ组、Ⅱ组、Ⅲ组和Ⅳ组在精料中分别添加200、400、600和800 mg/kg的烟酸(以干物质计),饲粮精粗比85∶15,试验期56 d。结果表明:补饲烟酸对干物质采食量没有显著影响(P>0.05),Ⅳ组的生长性能优于其余3组。Ⅳ组饲粮粗蛋白质、粗脂肪的表观消化率显著地高于其余3组(P<0.05),酸性洗涤纤维表观消化率显著地高于Ⅲ组(P<0.05),中性洗涤纤维表观消化率显著地高于Ⅱ组和Ⅲ组(P<0.05)。烟酸水平对血清葡萄糖、甘油三酯和β-羟基丁酸的浓度无显著影响(P>0.05),Ⅳ组血清非酯化脂肪酸浓度极显著地高于其余3组(P<0.01)。结果提示,高精料饲粮中补饲烟酸可提高肥育肉牛生长性能和养分表观消化率,本试验条件下以精料中添加800 mg/kg的烟酸效果较好。  相似文献   

青蛙——沼泽精灵     

传奇  卧铺蕙 《森林与人类》2007,27(12):30-53

它相貌丑陋,行动笨拙,既非鱼类也非家禽。它无法奔跑,也不愿无休止地蹦跳。它需要呼吸空气,但水也是它的避难所。两栖动物就像是上帝设计的败笔。经过数亿年的发展进化,它们把自身的外表缺陷变成了独有的优势。  相似文献