01/10/2014
"bacteriophages and probiotics both improve different aspects of grower pig's performance but that bacteriophages are more effective than probiotics and would appear to offer an alternative to antibiotic type growth promoters."
http://www.allaboutfeed.net/Nutrition/Feed-Additives/2014/9/Bacteriophages-successful-as-alternative-growth-promoters-1611108W/
A team at the Kangwon National University, Republic of Korea found that bacteriophages shows promise as growth promoter in pigs. Its combination with other additives was also studied.