##  [Feed Conversion Ratio](/index.php/feed-conversion-ratio) 

  ##  [Feed Conversion Ratio](https://health.quantumdictionary.io/feed-conversion-ratio-0) 

  

 [![Health & Life Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Health%20%26%20Life%20Sciences.png.webp?itok=yyyaiQOY)](/index.php/topic-specific-dictionaries/health-life-sciences)



**Health & Life Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The ratio of feed intake (mass of feed consumed) to body weight gain (mass gained) over a defined time period and production endpoint; a lower FCR indicates greater feed efficiency for the specified measurement window and product (e.g., live weight, carcass weight).