"The application of AgNP via the drinking water in the concentration of 50 ppm reduced broiler growth, impaired immune functions and had no antibacterial effect on different intestinal bacterial groups, which may limit the applicability of AgNP against
C. jejuni in broiler chickens."
"There were no differences between birds receiving AgNP and the control group (Fig.
1) with respect to the numbers of
C. jejuni, lactic acid bacteria
, Enterococci, Clostridium perfringens, Escherichia coli, and Lactose negative
enterobacteria in the contents of caecum, ileum and feces of the birds."
"The average amount of AgNP which single chicken received in the drinking water was 8.26 mg/d"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5748950/
"The ASAP Solution® is an engineered silver nano-particle mineral supplement. It includes 10 parts per million (ppm) silver utilizing American Biotech Labs unique patented silver technology."
"The results revealed that ASAP colloidal silver solution has neutralizing effects on Newcastle Disease Virus by the Heamagglutination inhibition technique (HAI). Therefore Neutralization titre = 10-5.6 ND50/0.1mL. This study findings support the conclusions made that the ASAP Colloidal Silver Solution is naturally microcidal (killing harmful bacteria, yeast, fungus, and viruses)."
http://www.rroij.com/open-access/th...on-the-newcastle-disease-virus-.php?aid=34121
"Kim et al. (2008) showed that repeated oral doses of nanosilver for 28 days did induce liver toxicity"
https://academicjournals.org/article/article1380990460_Loghman et al.pdf
"Not only widespread use of nanosilver in low levels of silver ions promotes rapid development of bacterial resistance but also use of nanosilver in high levels of silver ions causes toxicity in human and animals"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3826293/#B26
"The antimicrobial activity of Ag nanoparticles was investigated against yeast, Escherichia coli, and Staphylococcus aureus. In these tests, Muller Hinton agar plates were used and Ag nanoparticles of various concentrations were supplemented in liquid systems. As results, yeast and E. coli were inhibited at the low concentration of Ag nanoparticles, whereas the growth-inhibitory effects on S. aureus were mild. "
https://www.ncbi.nlm.nih.gov/pubmed/17379174/