Describe enrichment and inhibitory factors contained in the following commonly used media

Describe enrichment and inhibitory factors contained in the following commonly used media. What is the purpose of these inhibitory factors? How do potential intestinal pathogens appear on each of the media selected for gram-negative rods?

Blood agar

Monkey

SS  Agar

Hektoen/ XLD (include carbohydrate sources)

CNA/PEA

Brucella

Anaerobis Blood agar/KV laked

Campylobacter

Yersina (CIN) agar