Effect of Nano-Silver Particles Supplementation in Drinking Water on Performance and Intestinal Micro-Flora Population of Growing Poultry

Abstract

hree experiments were conducted to investigate the effects of drinking water supplementation with 0, 5 and 10 ppm of Nano-silver particles (AgNPs) / liter on performance, carcass characteristics and gut micro-flora population of grower rabbits from 63 to 91day of age, broiler chicks from 1 to 42 day of age and grower Japanese quails from 7 to 42 days of age. Results showed that, different levels of AgNPs in drinking water hadn't any significant effect on body weight, body weight gain (BWG) or feed conversion ratio (FCR) of rabbits. Concerning broiler chicks; the control group performed well compared with supplemented groups. Both BWG and FCR for Japanese quails recorded best values for 10 ppm supplemented group compared with control group. In all tested poultry species, the levels of 5 ppm and 10 ppm resulted in a reduction in total viable bacteria, pathogenic bacteria representing E Coli and beneficial bacteria representing Lactobacillus of intestinal gut especially for 10 ppm level causing negative effect on performance of grower broiler chicks but less on grower rabbits or Japanese quail, suggesting that, both species may be less sensitive for existence of AgNPs in drinking water, while broiler chicks might be more sensitive. Most of carcass characteristics were not significantly affected by existence or level of drinking water AgNPs supplementation except liver percent of grower quail, which needs to undergo more research works.

Comparative Effects of Nanoparticles (Silver vs. Graphene) in Drinking Water for Broiler Chickens

“…Numerically, the chicks received drinking water supplemented with 10.0 ppm nanoparticles had the highest percentages of carcass, TEP and abdominal fat% which recorded values (70.34, 75.03 and 1.35%) respectively compared with other treatments. These results agree with Ibrahim et al (2015), El-Faham et al (2017) who showed that the percentages of Dressing percentage and adipose fat hadn't affected significantly with treatments.…”

Impact of silver nanoparticles (Ag-NPs) as a dietary supplement on growth performance, carcass traits, blood metabolites, digestive enzymes, and cecal microbiota of growing rabbits

“…In the same context in rats, Kim et al (2010) reported that oral consumption of Ag-NPs did not significantly affect liver %, spleen %, kidney %, and heart %. El-Faham et al (2017) observed no significant changes in carcass traits of quail, broilers, and rabbits that were administered in drinking water with various levels of Ag-NPs (0, 5, or 10 ppm). The converse trend was detected by Hassan (2018), who supplemented drinking water or feed of broilers with Ag-NPs and documented a significant change in dressing %, liver %, and heart %.…”

“…Also, the possible causes of the inconsistent results can be related to the difference in animal species, the size of particles, the technique of synthesis, the administration dose, or manners. (El-Faham et al, 2017) found that different levels of Ag-NPs (0, 5, or 10 ppm in the drinking water) did not yield any statistically significant impact on LBW, BWG, or FCR of rabbits and broilers. However, it was observed that the Japanese quails exhibited superior BWG and FCR values in the group supplemented with 10 ppm of Ag-NPs, in comparison to the control group.…”

“…However, a noteworthy rise exclusively in lactic acid bacteria was detected. El-Faham et al (2017) found that the inclusion of Ag-NPs in drinking water at 5 and 10 ppm decreased total bacterial count and both harmful and helpful bacteria in the intestine of broiler chicks. These contradictory results can be related to the difference of animal species, the size of particles, the technique of synthesis, or the administration dose, manners, or duration.…”

Effect of Silver Nanoparticles as a Water Supplementation on Productive Performance, Carcass Characteristics and Bone Measurements of Broiler Chicks

“…The results showed that significantly decreasing in LBW increase the silver nanoparticles levels. El-Faham et al (2017) studied the effect of different levels of silver nanoparticles (0.0, 5.0 and 10 ppm/l) in poultry (broiler chicken, rabbits and Jap. quail) drinking water on performance.…”