乳酸

Three standard and two isolated strains of E.coli were used for drug sensitivity test on Chloramphenicol, Ciprofloxacin Lactate, Rifampicin, sulfamonomethoxine, Florfenicol, Ceftiofur Sodium as well as the antimicrobial synergists sulbactam sodium and TMP. The bacteriostasis results of the antibiotics against E.coli In vitro were compared when they were used separately or combined with the synergist.

试验用3株大肠杆菌标准株和2株地方分离株，选择氯霉素、乳酸环丙沙星、利福平、磺胺-6-甲氧嘧啶钠、氟苯尼考、头孢噻呋和抗菌增效剂舒巴坦钠、TMP进行药敏试验，比较几种药物单一或与增效剂合用对大肠杆菌的体外抑菌效果。

Material and method the acidity in 1.1 principles breast is main with lactic acid plan, consult the method always determines acerbitily in soy, with acidity plan indicates terminus, the color of sample does not have an influence to its. Solution of amortize of standard of mixture phosphate of 1.2 reagent and instrument ①(when 20 ℃ PH is 6.88)[2] : Approach?.40 G is in in 105 ℃ oven in the KH2PO4 of stoving 2 H and water of Yuchun of 3.55 GNa2HPO4 dissolve, attenuant to 1 000 Ml.

为了克服国标中的缺点，采用酸度计法并给出计算结果的公式。1材料和方法1.1原理乳中的酸度主要以乳酸计，参考酱油中总酸的测定方法，以酸度计指示终点，样品的颜色对其无影响。1.2试剂和仪器①混合磷酸盐标准缓冲溶液(在20℃时pH为6.88)[2]：称取3.40 g在105℃烤箱中烘干2 h的KH2PO4和3.55 gNa2HPO4溶于纯水中，并稀释至1 000 ml。

Pseudoacacia and Caragana were significantly (P.05) better than A. fruticosa in pH, lactate content and ammonia-N/total-N ratio, so that their fermentation quality was better. In addition, they were high in crude protein and low in neutral detergent fiber and acid detergent fiber, showing that they were abundant in nutritive components. A. fruticosa was the inferior silage in every evaluation in the experiment. The mixed silage of R. pseudoacacia and Caragana was the best, and the mixed silage with A. fruticosa was not recommendable. There were no obvious changes in the time before and after silaging in nutritive value of these three kinds of plants, it showed that the silage technology was good.

结果表明：刺槐、柠条青贮伺料在pH值、乳酸含量、氨态氮／总氮比值方面均显著地(P.05)好于紫穗槐处理，发酵品质良好，且粗蛋白含量高，中性洗涤纤维和酸性洗涤纤维含量低，营养价值高；而紫穗槐青贮品质在各项评定中均较差；在混合青贮中刺槐和柠条青贮混合品质最佳，与紫穗槐混合的两种混合饲料品质较差；刺槐、柠条、紫穗槐在青贮前后营养品质均无明显降低，青贮饲料品质等级均为良好，青贮效果较优。

The results of silage test show that in each cutting of all treatments, the silaging result of half-hay+BM+PFJ is best, the next is half-hay ferment, result of fresh grass straight fermenting is worst. In each cutting the content of CP between half-hay+BM+PFJ and the raw material grass has tiny difference (respective discrepancy from others 0.18%, 0.60% and 0.94%).

各种处理中，半干+BM+PFJ 组与原料草粗蛋白差异最小，三茬半干+BM+PFJ 处理CP 含量和原料草分别相差0.18%，0.60%，0.94%，该处理青贮料NH3-N 最低，NDF 含量与原料草差异小，pH 最低，评定得分最高，说明半干+BM+PFJ 青贮效果最好，半干草添加PFJ 和BM 后能能促进乳酸发酵，能有效地改善苜蓿青贮的发酵品质，提高青贮饲料质量。

With NEL and GI. The result showed that the feed value of rice stalk silages was that of 55%-75% whole corn silage.

试验结果表明，整株青贮和切短青贮对水稻秸青贮料的pH值、乳酸和总酸的影响差异显著(p0.05)。

Lactobacillus decreased pH, the value of NH3 / TN, and increased the content of lactic acid of all silages, especially improved the quality of alfalfa and the whole-plant paddy.

加入乳酸菌制剂后降低了所有青贮料的pH值、NH3/TN；提高了各青贮料的乳酸含量，尤其对于苜蓿与全株水稻的效果最为明显。

The left anterior de scending branches were ligated in anesthetic dogs to establish acute myocardial infarction models. The activities of AST, CK and LDH in serum were detected and the changes of ultrastructure of myocardium were observed.

采用麻醉开胸结扎犬的冠状动脉前降支制备急性心肌梗塞模型，取静脉血检测血清中天门冬氨酸转氨酶、磷酸肌酸激酶和乳酸脱氢酶活性；应用透射电子显微镜观察心肌细胞超微结构的改变。

In view of the history of migraine with aura preceding bilateral parieto-occipital infarcts and the elevated blood and CSF lacate concentrations , a needle muscle biopsy was done.

在双侧顶枕梗死前，由于有先兆的偏头痛发作史及血和 CSF 乳酸浓度增高，因此需行肌活检。组织化学分析显示10%肌纤维呈碎红

As raw materials with pear juice of wild thorn and milk, we have produced a kind of wild thorn pear yogurt after fermented with lactic acid.

以野生刺梨汁、牛乳为原料，经乳酸发酵后生产出一种野生刺梨酸奶。

Methods After injecting different doses of cephalosporins(100, 200, 300, 400μg) into vitreous body of rabbits, we studied the active change of retinal enzymes at different time and observed the histological and ultrastuctural changes of retinae.

方法以不同浓度的先锋霉素Ⅵ（100，200，250，300，400μg）行兔眼玻璃体腔内注射，用酶组织化学染色法测定注射后不同时间（1，3，7d）视网膜琥珀酸脱氢酶和乳酸脱氢酶活性的变化，并观察对视网膜组织结构及超微结构的影响。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。