They found that underutilized human and livestock waste could substitute 27% of current fertilizer use in China, 26% in the ...

Recycling all the human and livestock feces and urine on the planet ... the team modeled how much of this waste, if recycled, would be needed to satisfy crop and grassland production systems ...

“Infection of H5N1 in pigs is of particular concern – they are highly susceptible to human influenza ... allowed to feed cattle and other farm animals ground-up waste from other animals ...