プラクティカムビザって、Post-Graduation Work Permitのことですよね。
私立の専門学校卒では取れないはずですよ。
Post-Graduation Work Permits:
Some graduating students may apply to work in Canada for up to a year after graduation. The following conditions apply:
You must be engaged in full-time studies at a university, community college, CEGEP, publicly funded trade/technical school or at a private institution authorized by provincial statute to confer degrees;
You must have a job offer from an employer for a job that is related to your studies (however, the job offer does NOT require HRDC confirmation);
You must apply for a Work Permit within 90 days of graduation from your college or university;
You must have a valid Study Permit when you apply for the Work Permit.
http://www.cic.gc.ca/english/study/work-opps.html
あるいは同じページの「Work Permits for students at private institutions:」のことをおっしゃってるのでしょうか。これは通常のワークパーミットです。カナダ人や移民ではなくOkironさん(留学生ということではなく)の雇用が必要であるという証明が必要になります。ただ、学生ビザがあれば、国内申請ができるという点が違うだけです。