草食性动物，性情温顺，群居性差。属恒温动物，正常体温在38.5～39.5℃之间，对致热物质反应敏感，适于用作热源实验。

Herbivorous animals have a gentle temperament and poor social behavior. Belonging to a constant temperature animal, with a normal body temperature between 38.5 and 39.5 ℃, it is sensitive to the reaction of heating substances and suitable for use as a heat source in experiments.

兔的胸腔构造与其它动物不同，纵隔将胸腔分左右两室，互不相通。暴露心脏时，不需人工呼吸。

The chest structure of rabbits is different from that of other animals, with the mediastinum dividing the chest cavity into two chambers, which are not connected to each other. When exposing the heart, artificial respiration is not required.

在回盲处有特有的圆小囊。囊壁富有淋巴滤泡，其粘膜不断分泌碱性液体，可以中和盲肠中微生物分解纤维素所产生的各种有机酸，有利于消化吸收。

There is a unique round sac at the ileocecal site. The cyst wall is rich in lymphoid follicles, and its mucosa continuously secretes alkaline fluid, which can neutralize various organic acids produced by microbial decomposition of cellulose in the cecum, facilitating digestion and absorption.

有食粪特性，兔的粪有硬和软之分，软粪在晚上排出，含有较丰富的粗蛋白和维生素，家兔直接由肛门吞食软粪。

Having fecal feeding characteristics, rabbit feces are divided into hard and soft types. Soft feces are excreted at night and contain abundant crude protein and vitamins. Rabbits directly swallow soft feces through their anus.

兔是反射性排卵的动物，生育年龄5～6年。平均寿命约8年。

Rabbits are reflex ovulating animals with a reproductive age of 5-6 years. The average lifespan is about 8 years.

有特殊的血型和唾液型。体细胞的染色体有22对。

There are special blood and saliva types. There are 22 pairs of chromosomes in somatic cells.

兔对细菌内毒素、化学药品、异种蛋白会产生热源反应，体温反应灵敏而恒定。用于各类制剂的热源质检及发热解热机制研究。

Rabbits exhibit heat source reactions to bacterial endotoxins, chemicals, and heterologous proteins, resulting in a sensitive and constant body temperature response. Used for quality inspection of heat sources for various formulations and research on the mechanism of heat generation and heat dissipation.

眼科研究

Ophthalmic research

家兔眼球大，几乎成圆形，便于进行手术操作和观察，也常用于眼科药物筛选和疗效研究。

The rabbit's eyeball is large and almost circular, making it easy for surgical operations and observation. It is also commonly used for ophthalmic drug screening and efficacy research.

皮肤反应试验

Skin reaction test

兔对刺激反应敏感，反应近似于人，常用兔作为毒物、药物、化妆品等对皮肤局部作用的研究。

Rabbits are sensitive to stimuli and have a response similar to that of humans. Rabbits are commonly used as toxins, drugs, cosmetics, and other materials to study the local effects on the skin.

胆固醇代谢和动脉粥样硬化症研究

Cholesterol metabolism and atherosclerosis

兔对致病胆固醇的敏感性高，造型时间短，成型快。家兔模型的病变与人类基本相似。

Rabbits have high sensitivity to pathogenic cholesterol, short molding time, and fast molding. The pathological changes in the rabbit model are basically similar to those in humans.