分类： 农、林、牧、渔 >> 畜牧、兽医科学 分类： 医学、药学 >> 军事医学与特种医学 提交时间： 2023-08-28
摘要： 本文总结1例痛风性关节炎急性发作患者行金黄散贴敷疗法的护理体会。基于中医辨证，通过采用金黄散外用贴敷治疗，结合健康教育、饮食指导等综合护理干预，使患者达到疼痛缓解的效果。
分类： 农、林、牧、渔 >> 畜牧、兽医科学 提交时间： 2023-06-11
摘要： 新型禽流感病毒对家禽养殖业可造成严重经济损失，及时发现和阻断其传播具有重要意义。2022-2023年，本实验室在我国华东、华北地区发病鸡群中监测到新型H3N3亚型禽流感病毒的出现和传播。本研究对发病鸡群开展了临床发病情况调查，对分离病毒进行了全基因组演化分析，并对分离的代表性病毒进行了鸡致病性以及空气传播性实验。结果表明：1）H3N3最早于2022年12月在华东地区发生产蛋下降的蛋鸡群出现，随后陆续在华东、华北、东北等多个地区的鸡群中监测到，发病群体主要为产蛋鸡，鸡群发病率高，死亡率低（1%-5%），主要引起产蛋率急性下降（10%-40%）；2）病毒全基因组序列分析显示：H3N3病毒为新型重排病毒，由鸡群中流行的H3N8病毒与H10N3病毒重排产生，6个内部基因来源于H9N2病毒；3）与H3N8病毒类似，新型H3N3病毒对鸡高度易感，可在鸡呼吸系统高效复制、排毒，引起呼吸系统严重病理损伤；4）空气传播性实验表明，H3N8病毒不能在鸡之间有效空气传播，而新型H3N3病毒能够在鸡之间有效空气传播。综上，新型H3N3禽流感病毒对鸡具有较强的致病性、传播性，有可能成为新的优势流行病毒，对我国家禽养殖业威胁较大，需要开展其防控研究。
分类： 农、林、牧、渔 >> 畜牧、兽医科学 提交时间： 2021-02-08
摘要： Objective: The objectives of the experiment were to study the effects of dietary supplementation with sodium sulfate (Na2SO4) on taurine concentrations of plasma, urine and rumen fluid in steers. Methods: Six Simmental steers (bodyweight 449 ± 19 kg) were used as experimental animals. Three levels of Na2SO4, i.e. 0, 20 and 40 g/d, were added in a basal ration as experimental treatments. The animals and the dietary treatments were randomly allocated in a replicated 3 × 3 Latin square design. Each experimental period included 15 days for adaptation and 5 days for sampling. Rumen fluid, blood and urine were sampled from the steers during each sampling period. Results: Dietary addition with Na2SO4 at 40 g/d increased plasma taurine concentration (P 0.05). Limitations: We infer that the taurine in rumen fluid should have come from the blood through saliva secretion or/and the rumen microbial synthesis. However, no reports are available on the hypothesis. Further research is needed to investigate the possible origins of ruminal taurine as well as the impacts of taurine on rumen microecosystem and fermentation. Conclusions: Taurine has been found in rumen fluid for the first time in the experiment. Dietary addition with Na2SO4 increased plasma taurine concentrations whereas it did not affect urinary taurine excretions in steers.
点击量
待评议
点击量
下载量
评论
