Initialism of livestock unit.
"The farm manager calculated the herd's feed requirements using LSU to ensure each animal received adequate nutrition."
In plain English: Lsu is an acronym for Louisiana State University, which is a big public college located in Baton Rouge.
"The fans wore red and white to support their local LSU team at the football game."
Initialism of Louisiana State University.
"Students from LSU gathered in New Orleans to celebrate their team's championship victory."