For Schedule C, the most important thing is that the
expenses are deducted, not necessarily where they are deducted.
None of the expenses that you mentioned would require any
special treatment such that they would need to be listed in a particular
section of the Schedule C.
For items such as food, vaccinations, and vet bills for a
dog breeding business it would make sense to list these categories on their own
under the Less Common Expenses
section, using the Other Miscellaneous
Expenses category. Doing so will
allow you to enter your own description for the expense so that you can
categorize it any way that makes sense to you.