The aim of this study was to compare the effect of dietary supplementation with low dose of porous and nano zinc oxide (ZnO) on weaning piglets, and to evaluate the possibility of using them as an alternative to high dose of regular ZnO.
Dietary zinc oxide is known to increase growth and reduce post-weaning diarrhoea in piglets. But why the other forms of zinc do not manage to perform as well as zinc oxide? Let’s focus on the antimicrobial activity of zinc oxide.
Dietary zinc oxide is used in pig nutrition to combat post weaning diarrhoea. Recent data suggests that high doses (2.5 g/kg feed) increase the bacterial antibiotic resistance development in weaned pigs. Therefore, the aim of this study was to investigate the development of enterobacterial antibiotic resistance genes in the intestinal tract of weaned pigs.