The transportation stage mainly considers the transportation of feed, and the transportation mode is mainly road transportation. The damage caused to the surrounding environment of the road during the transportation process, the feed loss generated during the transportation process and other service costs (such as: high-speed fees, refueling fees, repair costs, etc.) are not considered, and only the exhaust emission during the vehicle transportation process is considered. Before utilizing this dataset, it is imperative to note that only the emissions related to the exhaust from the transportation vehicles are considered. The dataset does not include road damage, losses of feed during transport, or other service costs like tolls and maintenance. Therefore, for a complete environmental impact analysis, study users may need additional data to assess the entire impact of the feed transportation stage, especially if the complete environmental profile of dairy products or livestock and poultry breeding processes is desired. Users should aim to integrate this data with broader LCA datasets to ensure comprehensive impact assessments.