In a perfect zoo there is Zoo Doo.
Some zoos in the U.S. offer an exotic way to fertilize their gardens through a unique method of recycling waste from zoo animals.
At the Louisville Zoo in Kentucky where the mix is called Zoo Poopy Doo, the product consists of hoof stock manure from animals including elephants, rhinos, camels and giraffes. This is blended with hay, straw and wood shavings.
The product was first introduced at the Louisville Zoo by Assistant Director Mark Zoeller. Experts at the zoo say it gets its appeal by improving the aeration of the soil and increasing root penetration and water retention, which together reduces crusting of the soil surface.
Last April the Zoo celebrated its novel recycling technique in the form of Zoo Poopy Doo by holding festival sale Saturdays honoring the exotic fertilizer. The sale Saturdays that extended into May were held in the parking lot of the zoo where interested persons could support the zoo and recycling for $30 a scoop.