实验动物是指以科学研究为核心目的，应用于生物检定、疾病诊断、生物制品研发、教学等场景，经人工饲养的动物。常见类型包含小鼠、大鼠、兔等小型实验动物，犬、羊、猪等大型实验动物，同时涵盖鱼、鸟、青蛙等其他实验用生物。在人类疾病防治的临床研究中，受伦理与实际操作限制，无法直接开展人体试验，实验动物成为不可或缺的研究载体，在相关科研工作中占据至关重要的地位。
动物实验技术是临床医学研究者必备的基础技能，主要涵盖实验动物筛选、实验动物操作、动物模型构建等核心内容。其完整技术体系还包括无菌操作技术、实验前方案规划与物资准备、实验后动物管理等模块。 实验动物麻醉、手术区域脱毛与消毒，均属于动物手术前的关键准备工作。
实验动物脱毛是动物手术皮肤准备的重要环节，脱毛范围需大于手术操作区域，以保障手术无菌环境与操作视野。常用脱毛方式分为剪毛法、剃毛法、化学脱毛法、拔毛法等。其中化学脱毛法依托化学脱毛剂去除动物被毛，是动物无菌手术的常用脱毛手段。实验用化学脱毛剂主要分为两大类，分别适配犬类等大型动物，以及兔、小鼠等小型动物，通常大型动物专用脱毛剂的有效成分浓度更高。
实验动物脱毛剂 (Ⅳ) 以硫化钠、生石灰为主要原料，适用于大型实验动物的脱毛处理。该试剂仅限科学研究领域使用，不可用于临床诊断及其他非科研场景。
操作步骤（仅供参考）
1. 在欲进行手术部位将被毛剪短，用棉球蘸取脱毛剂，在欲脱毛部位涂一薄层。
2. 2~3 min后用温水洗去脱下的被毛，纱布擦干局部，涂一层凡士林。
注意事项
1. 合作的动物在麻醉前完成脱毛，不合作的动物则需要在麻醉诱导后或基础麻醉下进行。
2. 脱毛剂用量不可太多，时间亦不可太长，以减少对皮肤的刺激。
3. 为了您的安全和健康，请穿实验服并戴一次性手套操作。
4. 试剂开封后请尽快使用，以防影响后续实验效果。
Experimental animals refer to animals that are artificially bred for scientific research purposes, primarily used in bioassays, disease diagnosis, biopharmaceutical development, teaching, and other scenarios. Common types include small experimental animals such as mice, rats, and rabbits, large experimental animals such as dogs, sheep, and pigs, as well as other experimental organisms such as fish, birds, and frogs. In clinical research on human disease prevention and treatment, due to ethical and practical constraints, direct human trials are not feasible. Thus, experimental animals serve as indispensable research vehicles and play a critical role in related scientific work.
Animal experimental techniques are essential foundational skills for clinical medical researchers, encompassing core components such as experimental animal selection, experimental animal handling, and animal model construction. The complete technical system also includes modules such as aseptic techniques, pre-experiment planning and material preparation, and post-experiment animal management. Anesthesia of experimental animals, hair removal, and disinfection of the surgical area are key preparatory steps before animal surgery.
Hair removal in experimental animals is a crucial part of skin preparation for animal surgery. The area of hair removal should extend beyond the surgical operation zone to ensure an aseptic environment and clear visibility during the procedure. Common hair removal methods include clipping, shaving, chemical depilation, and plucking. Chemical depilation, which relies on chemical depilatory agents to remove animal fur, is a frequently used method for aseptic surgery in animals. Experimental chemical depilatory agents are mainly divided into two categories, designed for large animals such as dogs and small animals such as rabbits and mice. Typically, depilatory agents for large animals have higher concentrations of active ingredients.
Experimental Animal Depilatory Agent (Ⅳ) is primarily formulated with sodium sulfide and calcium oxide, and is suitable for hair removal in large experimental animals. This reagent is intended solely for scientific research purposes and must not be used in clinical diagnosis or other non-research scenarios.
Procedure (For Reference Only)
Trim the fur at the intended surgical site, then use a cotton ball to apply a thin layer of the depilatory agent to the area where hair removal is desired.
After 2–3 minutes, rinse off the removed fur with warm water, dry the area with gauze, and apply a layer of vaseline.
Precautions
Cooperative animals should undergo hair removal before anesthesia, while uncooperative animals should be treated after anesthetic induction or under basal anesthesia.
Avoid using excessive amounts of depilatory agent or leaving it on for too long to minimize skin irritation.
For your safety and health, please wear a lab coat and disposable gloves during operation.
Use the reagent as soon as possible after opening to avoid affecting subsequent experimental results.
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