新疆乳菀属时表皮特征及其分类学意义

本研究在扫描电镜（ＳＥＭ）和光镜（ＬＭ）水平上对产于新疆的轧菀属（ＧａｌａｔｅｌｌａＣａｓｓ．）１１种植物叶表皮进行了比较观察，表明该属植物叶表皮细胞和气孔也均为不规则型。文章认为，乳菀属叶表皮特征较稳定，且具有类群特异性，在确定亲缘关面具有重要意义。

Effets of Permanganic Potassium on Digestion and Metabolism on Sheep in a High Concentrates Ration

Effects Ot permanganic potassium supplement on ruminal and body digestion and metabolism were investigated,using three ruminally cannuelafed Xinjiang Merino Wethers in a I X 4 factorial experiment in a high concentrates ration. The results indicated that 0.05% permanganic potassium water solution increased ruminal TVFA concentration without effects on PH value and body nitrogen retention;0.10% and 0.15%perman ganic potassiun water solution increased ruminal PH value and acetic acid percent in a different decent through the inhibition to fermentation of ruminal carbohydrates,maybe it had no better effects on body nitrogen retention.