What is the name of the process in which a fairly large amount of liquid is administered to an animal?

The process of administering a fairly large amount of liquid to an animal is known as drenching. This method is commonly used in veterinary and agricultural practices, particularly for administering medications or nutritional supplements, including dewormers or electrolytes, directly into the animal's gastrointestinal tract. Drenching typically involves using a dosing device or syringe designed to deliver the liquid down the throat of the animal, ensuring that a significant volume is consumed.

In contrast, inoculation refers to the introduction of a vaccine or pathogen to stimulate an immune response, typically involving a small volume of liquid. Injection generally involves delivering substances via a syringe and needle, and while it also involves liquids, the amounts are usually smaller and may be administered into muscle or under the skin rather than orally. Flushing is often related to providing a large volume of fluid within a specific context, such as irrigation, and does not represent the specific action of directly administering liquid to an animal as drenching does. Thus, the correct term that encompasses the practice of delivering a significant volume of liquid orally to livestock is indeed drenching.