What is NOT a factor in determining the marketing criteria for livestock?

Understanding the marketing criteria for livestock involves various factors that influence the desirability and pricing of the animals in the market. Among these factors, color is generally not a primary determinant.

Breed is critical because certain breeds are associated with specific desirable traits, such as meat quality, yield, or disease resistance, which directly impact a buyer's preference. Age of the livestock is also significant since it can influence the growth performance and reproductive capability of the animal, making it a key consideration for buyers. Fat score is another important criteria, as it provides crucial information about the animal’s condition and quality of meat, which are vital for meat producers and consumers.

In contrast, while color may have some influence, it does not carry the same level of importance in livestock marketing as the other factors. Some markets may have preferences for certain colors, but they typically do not alter the overall market structure or pricing as significantly as breed, age, and fat score. Thus, color is the factor that stands out as less relevant in determining the marketing criteria for livestock.