排序方式: 共有48条查询结果,搜索用时 125 毫秒
21.
Marla Lichtenberger DVM DACVECC ; Connie Orcutt DVM DABVP ; Carolyn Cray PhD ; Douglas H. Thamm VMD DACVIM ; Daniel DeBehnke MD FACEP ; Cheryl Page BSC CVT ; Lori Mull BSc CVT Rebecca Kirby DVM DACVIM DACVECC 《Journal of Veterinary Emergency and Critical Care》2009,19(5):467-472
Objective – The purpose of this study was to determine the LD50 for acute blood loss in mallard ducks ( Anas platyrhynchos ), compare the mortality rate among 3 fluid resuscitation groups, and determine the time required for a regenerative RBC response.
Design – Prospective study.
Setting – Medical College of Wisconsin Research facility.
Animals – Eighteen mallard ducks were included for the LD50 study and 28 for the fluid resuscitation study.
Interventions – Phlebotomy was performed during both the LD50 and fluid resuscitation studies. Ducks in the fluid resuscitation study received a 5 mL/kg intravenous bolus of crystalloids, hetastarch (HES), or a hemoglobin-based oxygen-carrying solution (HBOCS).
Measurements and Main Results – The LD50 for acute blood loss was 60% of total blood volume. This blood volume was removed in the fluid resuscitation study to create a model of acute blood loss. Following fluid administration, 6 birds in the crystalloid group (66%), 4 birds in the HES group (40%), and 2 birds in the HBOCS group (20%) died. No statistical difference in mortality rate was seen among the 3 fluid resuscitation groups. Relative polychromasia evaluated post-phlebotomy demonstrated regeneration starting at 24 hours and continuing through 48 hours.
Conclusions – The LD50 for acute blood loss in mallard ducks was 60% of their total blood volume. Although no statistical difference in mortality rate was appreciated among the 3 fluid resuscitation groups, a trend of decreased mortality rate was observed in the HBOCS group. An early regenerative response was apparent following acute blood loss. 相似文献
Design – Prospective study.
Setting – Medical College of Wisconsin Research facility.
Animals – Eighteen mallard ducks were included for the LD
Interventions – Phlebotomy was performed during both the LD
Measurements and Main Results – The LD
Conclusions – The LD
22.
经济发展的最终目的在于提高国民的幸福和福利,国民幸福指数或者国民幸福总值可以通过各项衡量指标体现国民幸福的变化,本文力图从宠物经济的发展中结合国民幸福指数,通过国民幸福的衡量标准,分析宠物经济发展中消费者的消费方式的变化与国民幸福变化的联系。 相似文献
23.
24.
套袋梨病虫害研究综述与展望 总被引:2,自引:0,他引:2
套袋技术是目前生产高档梨果的重要措施之一,梨果套袋后避免了与外界的直接接触,减轻了病虫危害,提高了果面光洁度和果实的商品价值。但果袋所提供的微域环境加重了梨果黑点病、褐斑病、中国梨木虱、黄粉蚜等病虫害的发生。文章综述了套袋梨主要病虫害的研究现状、发生规律及防治方法,以期为梨果的无公害化生产奠定理论基础。 相似文献
25.
26.
在温室内栽培小型西瓜过程中,易发生病虫害,进而影响了经济效益的状况。提前预防和控制才能有效防治病虫害。 相似文献
27.
本文分析了重庆市麦类生产现状和存在的主要问题,并对生产前景进行了预测,提出了实现预测指标的对策和主要措施。 相似文献
28.
29.
30.