1) Animal chemistry 
chemistry of animals
• (n.) Animal chemistry; particularly, the description of the chemical compounds entering into the composition of the animal body, in distinction from biochemistry.
Zo`ö·chem'is·try noun [ Zoö- + chemistry .] Animal chemistry; particularly, the description of the chemical compounds entering into the composition of the animal body, in distinction from biochemistry . 
the branch of chemistry dealing with the constituents of the animal body; animal chemistry.