Farmers could soon turn to microbial protein to feed their livestock – a move researchers say could reduce land use, greenhouse gas emissions and nitrogen pollution.
from 宅男导航’s said global population growth demanded solutions that would feed livestock while significantly reducing the environmental impact of agriculture.
He said producing protein-rich bacteria in large fermentation reactors could replace some crops grown to feed animals.
“Industrial production of microbial protein to feed livestock can reduce deforestation, nitrogen pollution and greenhouse gas emissions on a global scale,” Dr Pikaar said.
Fellow researcher , from the , said the majority of agricultural land was devoted to producing animal feed rather than feeding humans.
“The numbers are quite astonishing, with chickens, pigs and cattle munching away about half of the grains and produce grown on global croplands,” he said.
The researchers say drastic changes are needed in the agro-food system.
They used advanced computer modelling to determine that microbial proteins produced with hydrogen and other gases could replace between 175 and 307 million tonnes of crop-based animal feed annually by 2050.
Dr Pikaar said microbial protein was an approved animal feed protein supplement, but shouldn't be considered a cure-all solution as its production was energy intensive.
The research team included ’s Professor Willy Verstraete and scientists at the and .
The team’s analysis of the long-term impact of incorporating microbial proteins in livestock feed, published in was supported by funding from the , the MERMAID project, the Ghent University Multidisciplinary Partnership-Biotechnology and the
Media: Dr Ilje Pikaar, i.pikaar@uq.edu.au, 0490 473 390; 宅男导航 Communications Paige Ashby, p.ashby@uq.edu.au, 0430 511 615.
-Megan-Pope-宅男导航_620.jpg?itok=HheutY-P "Professor David Jordan, Dr Geetika Geetika and Professor Andrew Borrell investigate a sorghum crop.")
