Which breed is most likely to excel in muscularity?

The breed that is most likely to excel in muscularity is the meat or terminal sire breeds. These breeds have been specifically developed and selected for their ability to produce muscle mass and desirable carcass traits, which are critical for meat production. The focus on traits such as muscle thickness, overall body condition, and growth rates allows them to outperform other breeds in terms of muscling.

Fine wool breeds primarily focus on producing high-quality wool and tend to have less emphasis on meat characteristics. Similarly, long wool breeds are valued for their fleece quality rather than muscularity. Dairy breeds, while important for milk production, are typically not bred with muscularity as a priority since their reproductive and lactation traits take precedence. Thus, the meat or terminal sire breeds are specifically tailored to meet the demands of the meat market, which requires animals with strong muscle development.