The ASPCA also specifies âspecies suitable to be companion animals include dogs, cats, horses, rabbits, ferrets, birds, guinea pigs and select other small mammals, small reptiles and fish. However, many other governmental agencies, associations and interest groups insist that horses are livestock.
What Is Zinc PCA. Zinc PCA is also a trace element where the PCA stands for Pyrrolidone carboxylic acid. It has similar functions in general so in some cases it can be used in situations where Zinc cannot because of the different structure.
Zinc pyrithione. Zinc pyrithione (or pyrithione zinc) is a coordination complex of zinc. It has fungistatic (that is, it inhibits the division of fungal cells) and bacteriostatic (inhibits bacterial cell division) properties and is used in the treatment of seborrhoeic dermatitis. Contents.