Which of the following items is not required to appear on a feed label?

The essential aspects of feed labeling are governed by regulations to ensure transparency and safety for both consumers and livestock. A feed label typically includes an ingredients list, nutritional analysis, and feeding instructions to provide necessary guidance for proper use and to inform users about the product's contents.

The manufacturing date does not have to be included on a feed label. While it can be useful information, it is not mandated by regulations like the other components mentioned. This means that manufacturers have the discretion to include or omit the manufacturing date, depending on their marketing strategy and product handling practices. Therefore, the absence of a manufacturing date on feed labels is acceptable, making it the correct choice in this context.