English: Slaughter must be for the sake of “the young of the herd” — from here, one who is occupied with something else (mitasek) regarding kodashim renders it invalid.
In the sugya: Naming the object of slaughter requires intent directed at that offering. Mitasek — mechanical action while the mind is on something else — fails for kodashim even where it might pass for chullin.
Type of Learning
Intent requirement from the named object of slaughter — mitasek invalidates kodashim.
What Is Learned
Kodashim shechitah requires intent for the offering; mere mechanical occupation with another matter invalidates. The named “young of the herd” is the target of that intent.