Rats Oral gavage 

Want a oral gavage for your rat? We offer a wide range of oral gavage feeding needles for rats. Our own brand Nuevo Vet Flex & Fuchigami. Each has their benefits. Our own brand Nuevo Vet Flex is e.g. the most gentle and flexible feeding needle on the market. With it you definitely avoid damage to the animal. And at the same time it is the cheapest probe we have in our range.

Please also see the oral gavage for mice.


The Nuevo Vet Flex

Comes in 75 mm & 50 mm lenght.With a tip size OD 2,1mm. 

The most flexible tube on the market. 

Rat Oral gavage
Fuchigami Oral gavage for mice & rats



With Fuchigami you get a wide selection of probes for rats and mice etc. We recommend for most mice No. 5200. and to rats No. 7204 or 7206 if it is slightly larger rats.

The benefits

Plastic oral gavage have the great advantage that, firstly, they are much more animal friendly and then they have the advantage that you can see your compound through the tube. You therefore know for sure if there are air bubbles in. The tube itself is made of plastic material of medical grade. Once the feeding needle has been used for a group of rats (one compound), the gavage is discarded. You thus avoid several compounds being mixed by mistake.

Oral gavage is a widely used method of administering substances directly into the stomach of laboratory animals such as rats. This method is often used to deliver drugs, nutritional supplements, or other substances for research purposes. In this comprehensive guide, we will provide you with a detailed overview of the rat oral gavage method, including its advantages, disadvantages, and best practices.

Advantages of Rat Oral Gavage:

Oral gavage is a popular method for administering substances to rats because it offers several advantages. One of the main benefits of oral gavage is that it allows for precise dosing. Unlike other methods of administration, oral gavage allows researchers to control the amount of substance that the rat receives, which is essential for accurate and reliable results.

In addition, oral gavage is a non-invasive method that does not require surgery, which makes it less invasive and more humane than other methods. Furthermore, it is a simple and cost-effective method that requires minimal equipment, making it accessible to researchers with limited resources.

Disadvantages of Rat Oral Gavage:

Despite its advantages, oral gavage also has some disadvantages that should be considered. One of the main disadvantages is the risk of injury or harm to the rat. If the procedure is not performed correctly, the rat may experience trauma or injury to the esophagus, stomach, or other internal organs, which can compromise the validity of the research results.

Another potential disadvantage is the stress that the rat may experience during the procedure. The act of restraining the rat and administering the substance can be stressful, which may affect the results of the research.

Best Practices for Rat Oral Gavage:

To minimize the risk of injury or harm to the rat and ensure accurate and reliable results, it is essential to follow best practices when performing oral gavage. Here are some guidelines to follow:

  1. Select the correct size of gavage needle: The size of the gavage needle should be appropriate for the size of the rat. Using an inappropriate size can lead to injury or harm to the rat.

  2. Proper restraint of the rat: The rat should be properly restrained to prevent movement during the procedure. A rat restrainer or a towel can be used to immobilize the rat safely.

  3. Lubricate the gavage needle: The gavage needle should be lubricated with water or other appropriate substances to make it easier to pass through the esophagus.

  4. Correct placement of the gavage needle: The gavage needle should be inserted correctly into the esophagus, not the trachea, to ensure accurate delivery of the substance.

  5. Observe the rat after the procedure: The rat should be closely monitored for any signs of distress or adverse reactions after the procedure.


In conclusion, rat oral gavage is a widely used method for administering substances to laboratory rats for research purposes. It offers several advantages, including precise dosing, non-invasive administration, and cost-effectiveness. However, it also has some potential disadvantages, including the risk of injury or harm to the rat and stress during the procedure. By following best practices, researchers can minimize these risks and ensure accurate and reliable results.

What says wiki about rats?