{{cite journal | last1=Zhi-gang | first1=Tang | author2=M. Naeem | author3=W. Chao | author4=W. Tian | author5=Zhou Yan-min | year=2014 | title=EFFECT OF DIETARY PROBIOTICS SUPPLEMENTATION WITH DIFFERENT NUTRIENT DENSITY ON GROWTH PERFORMANCE, NUTRIENT RETENTION AND DIGESTIVE ENZYME ACTIVITIES IN BROILERS | journal=Journal of Animal and Plant Sciences | volume=24 | issue=5 | pages=1309-1315 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-190}}