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壳聚糖对乳房炎奶牛血清胆固醇、尿酸和肌酐的影响 总被引：4，自引：0，他引：4
为确定壳聚糖对奶牛乳房炎的治疗效果,选择产奶量、胎次和泌乳期相近,营养中等,乳房炎阴性奶牛6头,阳性30头,组成0(阴性对照组)、1(阳性对照组)和2、3、4、5组(试验组),每组6头.各组基础日粮和饲养管理相同.分别在基础日粮中添加壳聚糖0g、0g、10g、20g、40g和80g/d/头.连续喂养2周,分别与试验的0d、7d、14d采取血样,分离血清,测定血清中胆固醇、尿酸和肌酐的含量.结果:应用壳聚糖7～14d后,2、3、4、5组奶牛血清胆固醇含量均数有随壳聚糖用量的增加而降低的趋势,但差异不显著(P﹥0.05);血清尿酸和肌酐水平显著(P﹤0.05)或极显著(P﹤0.01)地降低.结论:壳聚糖具有加快乳房炎患牛机体对尿酸和肌酐排泄的功能,提高机体对炎症的抵抗力,促进机体的康复过程. 相似文献
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本文报道近三年安徽农业技术师范学院新生动型肝炎病毒感染调查结果。受检学生1628人，乙型肝炎表面抗原阳性率为10～12％，谷丙转氨酶异常率为4～6％，西指标均异常为0．9～1．5％。 相似文献
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肉用公牛 1 5头 ,分成试验Ⅰ、Ⅱ、Ⅲ和对照Ⅰ、Ⅱ 5个组。各组精料用量与营养水平相同。粗饲料用不同方法处理的麦秸。试验Ⅰ组饲用EM发酵剂发酵的麦秸。试验Ⅱ组饲用EM发酵剂喷洒的麦秸 ,试验Ⅲ组饲用干麦秸并以EM发酵剂饮水。对照Ⅰ组饲用氨化麦秸。对照Ⅱ组仅喂干麦秸。试验 6 1天。结果试验Ⅰ、Ⅱ、Ⅲ和对照Ⅰ组牛 ,分别比对照Ⅱ组提高增重 45 .99% (P <0 .0 1 )。 8.72 % (P >0 .0 5 )、3.1 3% (P >0 .0 5 )和 44 .76 %(P <0 .0 1 )。试验Ⅰ组增重与对照Ⅰ组相当 ,但处理费用仅为对照Ⅰ组的 1 / 3。证明用EM发酵麦秸饲喂肉牛是很有意义的。 相似文献
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为探讨金樱子多糖对免疫抑制小鼠肝功能及血脂代谢的调节作用,取50只昆明小鼠随机平均分为正常对照组、模型组、RLP低剂量组、RLP中剂量组、RLP高剂量组．低、中、高剂量组分别按100ms／kg·d、200mg／kg·d、400mg／kg·d连续灌胃30d;正常对照组和模型组灌胃生理盐水．于试验前一周在继续灌胃的基础上,除正常对照组外,分剐于第l、3、5天给小鼠按25mg／kg体重腹腔注射地塞米松（Dex）建立免疫抑制动物模型．摘小鼠眼球取血,用试剂盒测定小鼠血清的总胆固醇（TC）、甘油三酯（TG）、高密度脂蛋白胆固醇（HDL—C）、低密度脂蛋白胆固醇（LDL—C）、谷草转氨酶（AST）、谷丙转氨酶（ALT）．结果表明,金樱子多糖能显著降低免疫抑制小鼠血清中TC、LDL—C、AST、Au含量,对HDL—C和TG有一定的调节作用．因此,金樱子多糖对免疫抑制小鼠肝功能及血脂代谢具有一定的调节作用． 相似文献
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目的 :探讨硫酸镁治疗胎儿宫内生长迟缓 (IUGR)的临床意义。方法 :对 4 5例IUGR孕妇随机分为治疗 1组、治疗 2组、未治疗组各 15例 ,并以同期分娩的 15例正常孕妇为对照组。治疗 1组用复方氨基酸 2 5 0ml、10 %葡萄糖 5 0 0ml+辅酶A10 0U、三磷酸腺苷 4 0mg、维生素C 2g ,静脉滴注 ,每日 1次共 10d ,口服硫酸锌 2片 ,一日三次 ;治疗 2组在治疗 1组的基础上再加 10 %葡萄糖 5 0 0ml+2 5 %硫酸镁 2 0ml,静脉滴注 ,4h内均匀滴完 ,每日 1次共 10d。结果 :新生儿体重比较 ,治疗 2组与对照组差异无显著性 (P <0 .0 5 )。胎盘的重量比较 ,对照组均重于IUGR各组 ,治疗 2组重于未治疗组和治疗 1组 ,差异有极显著性 (P <0 .0 1)。结论 :硫酸镁治疗IUGR能明显改善子宫胎盘血流灌注 ,促进胎儿生长发育。 相似文献
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添加沼液对育肥猪增重效果的影响 总被引：1，自引：0，他引：1
选择体重在40kg左右杂交育肥猪28头,随机分成四组,每组7头,对照组饲喂基础日粮,试验Ⅰ、Ⅱ、Ⅲ组在基础日粮中分别按日饲喂量添加40%、60%和80%的沼液.试验结果表明:试验Ⅰ、Ⅱ、Ⅲ组育肥猪的头均日增重分别比对照组提高了136.46g(15.52%)、94.88g(10.79%)和72.50g(8.27%),且差异显著(P ＜0.05),以试验Ⅰ组增重最快.对照组的料重比分别比试验Ⅰ、Ⅱ、Ⅲ组高0.03(1.06%)、0.02(0.71%)、0.05(1.77%),以试验Ⅲ组料重比最低,但差异不显著(P＞0.05).经综合评定以试验Ⅰ组增重最快,经济效益最好. 相似文献
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1日龄AA肉鸡160只,随机分成4组。1~4组饮水中肌肽添加剂量分别为0(对照组)、20(低剂量组)、40(中剂量组)、60(高剂量组)mg/L,试验期6周。于2、4、6周末每组随机取6只肉鸡心脏采血,测定血清中的谷丙转氨酶(ALT)、谷草转氨酶(AST)活力和总胆固醇(TC)的含量。结果表明:肌肽各剂量组ALT活力在2、4、6周龄时均低于对照组,但组间差异均不显著(P>0.05)。4周龄时各剂量组AST的活力均高于对照组,2、6周龄均低于对照组(P<0.05或P<0.01)。生长中期肌肽组血清胆固醇含量有所上升,生长后期略微下降,肌肽对肝脏功能没有明显的影响。 相似文献
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按胎次、产奶量、泌乳期相近的原则选取40头荷斯坦奶牛,随机分为对照组、试验I、II、III组,每组10头。试验开始后对照组饲喂基础日粮,试验各组每头奶牛日粮中分别添加200mg/d、300mg/d、400mg/d的大豆黄酮(DA),试验持续60d。分别在试验开始前和试验第10、30、60d尾静脉采血10mL分离血清,测定其谷丙转氨酶(ALT)、谷草转氨酶(AST)、碱性磷酸酶(ALP)和γ-谷氨酰转移酶(γ-GT)活性及尿素(UREA)、尿酸(UA)、肌酐(CREA)含量。结果表明,日粮中添加DA能显著降低血清中ALT活性(P0.05);各组之间血清中ALP、AST、γ-GT活性,UREA、UA、CREA含量不存在显著差异(P0.05)。 相似文献
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选用健康的 36头“大×长×杜”仔猪 ,随机分为三组 ,不同来源的猪用预混料按 4 %的比例分别添加到各试验基础日粮中 ,试验期为 2 5天。结果表明三组仔猪的日增重依次为Ⅰ组 6 4 3G、Ⅱ组为 6 5 5G、Ⅲ组为 6 0 4G ,Ⅰ、Ⅱ组之间差异不显著 (P >0 0 5 ) ,Ⅰ、Ⅱ组与Ⅲ组间的差异显著 (P <0 0 1) ;三组仔猪的平均料重比分别为 198、196、2 14,增重 1KG分别消耗预混料成本 0 .6 1元、0 .5 2元和 0 5 1元 ,三组饲喂养效果以Ⅱ组仔猪的生长速度最快 ,Ⅲ组预混料成本最低 ,Ⅱ组的料重比低于Ⅲ组 ,日增重高于Ⅲ。 相似文献
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桐花树嫩叶浸出液对绿豆下胚轴不定根生长的影响 总被引：1，自引：0，他引：1
本试验研究了桐花树嫩叶浸出液对绿豆下胚轴不定根生长的影响.七个浓度梯度处理分别是:原液(0.078 9 g/mL)、稀释5倍(0.0157 8 g/mL)、稀释10倍(0.007 89 g/mL)、稀释15倍(0.005 26 g/mL)、稀释20倍(0.003 95 g/mL)、稀释30倍(0.002 63 g/mL)、稀释40倍(0.001 97 g/mL),以蒸馏水为对照组.分别简记为T1、T2、T3、T4、T5、T6、T7、CK.结果表明:T1～T6组对绿豆下胚轴不定根数目和生根范围均有显著促进作用,且随浸出液浓度的增大而呈上升趋势,其中T1、T2组的不定根数目和生根范围均显著大于其他组;T4和T5组的不定根根粗为最大,且显著大于其他组;T4组的不定根最长根长、鲜重和干重最大,分别比对照组显著提高14.69%、30.00%和55.56%.试验表明,桐花树嫩叶浸出液对绿豆下胚轴不定根生长具有较明显的化感效应,表现为过高浓度起抑制作用,较高浓度起促进作用,而过低浓度的促进效果不明显. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献