Quebec preferred area of training for immigration

[teddy2]

Hello all,
Can someone shed light for the preferred area of training? For example in the list there is Chemistry ( Bach +3years). I would like to know if all branches of chemistry are equally valid ( organic chemistry, physical chemistry, inorganic chemistry, analytical, electrochemistry, biochemistry, etc....)? Of all these fields which one is the preferred one in Quebec? Is there any detailed list of preferred area of training?
In advance thank you very much for sharing your knowledge/experience.

Teddy