Phytobiotics: an Alternative to Antibiotics Growth Promoters
Prashant Kumar Mishra (NUTEC)
The use of antibiotic growth promoters (AGPs) in animal production began half a century ago, when Stokstad and Jukes added residues of chlortetracycline production to chicken feed. They were added with the objective to serve as a source of vitamin B12, but they caused a growth stimulation that was far too large to be explained only as a vitamin effect. The almost obvious cause ...