The following timeline gives an overview of the changes that have occured over the years. Click on a year to learn more. The Leadership page provides a summary of department leadership.
| 1902 | Department of Animal Husbandry formed |
| 1919 | Poultry Husbandry department formed |
 View a history of the Department of Poultry Science, including significant accomplishments, in poster format: click here for pdf. |
|
| 1929 | Department of Dairying renamed Department of Dairy Technology |
| (dairy herd and dairy products courses transferred to animal husbandry) | |
| 1943 | Animal Science Hall of Fame started |
| 1947 | Dairy Department formed |
| 1950 | Dairy department renamed Dairy Science department |
 View a history of the Department of Dairy Science, including significant accomplishments, in poster format: click here for pdf. |
|
| 1951 | Department of Animal Husbandry becomes Department of Animal Science |
| 1952 | Dairy Science Hall of Service started |
| 1971 | Department of Dairy Technology discontinued, and Department of Food Science and Nutrition formed |
| 1994 | Animal, Dairy, and Poultry Science departments merge into Department of Animal Sciences |