Collocations for faeces - noun

fresh
infected
The disease can be transmitted through contact with infected faeces.

dog, human, etc.

deposit, expel
be excreted in, be passed in
The larvae may be excreted in the faeces.

collect
A sample of fresh faeces should be collected each day.

sample

in the faeces
The amount of blood in the faeces was measured.

Faeces is used after these nouns:
dog