You should feed based on the ideal body weight of your animal to prevent obesity. (articles.extension.org)
Anyone helping you with your pet will need to know an approximate weight of the animal, what poison was ingested, how much was ingested and what time the ingestion occurred. (smallanimalchanel.com)
Use the entire contents of the tube that correctly corresponds with the body weight of your animal. (texaswestveterinarian.com)