[Simultaneous identification and detection of four novel isoxazoline drugs in bovine-origin foods using ultra-high performance liquid chromatography coupled to quadrupole/linear ion trap mass spectrometry]. [PDF]
异噁唑啉类药物(ISOs)是一类含有N和O原子的五元杂环类化合物,它们能够抑制γ-氨基丁酸门控氯离子通道,被广泛用于家禽寄生虫病的治疗。人类摄入动物源性食品是接触ISOs的重要途径,为解决动物源性食品中ISOs残留带来的安全问题,本研究建立了一种针对牛源性食品(包括牛奶、牛肉和牛肝)中4种新型ISOs(氟雷拉纳、洛替拉纳、沙罗拉纳和阿福拉纳)的超高效液相色谱-四极杆/线性离子阱质谱(UHPLC-Q/Trap MS)分析方法。样品先经乙腈提取,再用PRiME HLB固相萃取小柱净化;以5 mmol ...
Yang C +6 more
europepmc +2 more sources
[Simultaneous determination of 31 banned veterinary drugs during egg-laying period in poultry eggs by ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]
采用改良的QuEChERS法进行前处理,建立了超高效液相色谱-串联质谱同时测定禽蛋(鸡蛋、鹅蛋、鸭蛋)中9类31种产蛋期禁用兽药(大环内酯类、解热镇痛类、磺胺类、抗菌增效类、抗球虫类、抗线虫类、喹诺酮类、四环素类、酰胺醇类)的检测方法,并对样品前处理和色谱条件进行了优化。称取2.00 g样品,先加入2 mL 0.1 mol/L 乙二胺四乙酸二钠溶液,涡旋1 min,将样品充分分散,再用8 mL 3%乙酸乙腈提取,氯化钠(2 g)盐析,离心后,上清液采用十八烷基硅烷键合硅胶(C18, 100 mg)、N ...
Zhu WY +7 more
europepmc +2 more sources
Yangui Li +9 more
semanticscholar +2 more sources
Challenges for the veterinary profession: A grounded theory study of veterinarians' experiences of caring for older horses. [PDF]
Abstract Background In Great Britain, owners are keeping their horses into increasingly older age, reflecting societal changes in human–animal relationships. The uptake of routine veterinary services is reported to reduce as horses age. Horse owners seek information regarding their animal's health from alternative sources before and/or following ...
Smith R +4 more
europepmc +2 more sources
Evaluation of canine epidermis and keratinocytoids (keratinocytic organoids) by transmission electron microscopy. [PDF]
Background – Skin disease is a common complaint in veterinary medicine. Current models often use live animals. Epidermal organoids (keratinocytoids) are 3D miniature organs created in culture from single epidermal keratinocytes. These keratinocytoids can be used as an alternative to live animal studies to investigate epidermal structures and skin ...
Lui CC +5 more
europepmc +2 more sources
Creating constellations of coexistence through connections between people in human-wildlife conflict areas. [PDF]
Abstract Human–wildlife conflict (HWC) is a critical challenge to human development and well‐being and threatens biodiversity conservation. Ideally, HWC mitigation should benefit both wildlife and communities and limit the costs associated with living alongside wildlife.
Green AR +8 more
europepmc +2 more sources
Effects of organized guarding on mortality from human-elephant conflict in northeast India. [PDF]
Abstract Human–elephant conflict (HEC) frequently results in human and elephant mortality, posing major social justice and conservation concerns across Asia and Africa. Although a variety of interventions have been introduced to mitigate HEC, rigorous evaluations of how they affect mortality are practically nonexistent.
Sekar N +6 more
europepmc +2 more sources

