Research shows that Japanese quails fed 20 mg/kg of green silver nanoparticles significantly improved egg production, egg quality, fertility, and hatchability compared to control birds and those receiving traditional silver nitrate, according to a 2026 study of 480 quails. Male birds also demonstrated enhanced mating behaviors with the green silver treatment, suggesting improved reproductive health.

Researchers compared two types of silver compounds added to quail feed to see which one worked better for egg production and reproduction. According to Gram Research analysis, quails that received green-made silver nanoparticles at 20 mg/kg showed the best results for laying eggs, egg quality, and fertility rates over a 9-week study. The green silver particles outperformed traditional silver nitrate, a chemical compound commonly used in animal farming. Male quails also showed better mating behaviors with the green silver treatment. This research suggests that natural silver compounds could be a safer alternative for improving farm bird productivity.

Key Statistics

A 2026 research article studying 480 Japanese quails found that birds supplemented with 20 mg/kg of green silver nanoparticles showed significantly improved productive performance and egg quality parameters compared to control and silver nitrate groups (p < 0.05).

According to the 2026 quail study, the 20 mg/kg green silver nanoparticle group exhibited the highest fertility and hatchability rates among all five treatment groups tested over the 9-week experiment.

Gram Research analysis of the 2026 study found that male Japanese quails receiving 20 mg/kg green silver nanoparticles demonstrated enhanced sexual behaviors including increased wing flapping, waltzing, mounting, tidbitting, rear approach, and treading compared to other groups.

The 2026 research on 480 quails showed that green silver nanoparticles outperformed traditional silver nitrate at both tested doses, with even the lower 10 mg/kg green silver dose producing better results than the higher 20 mg/kg silver nitrate dose in most measurements.

The Quick Take

  • What they studied: Whether green-made silver nanoparticles or traditional silver nitrate work better for improving egg production, egg quality, and breeding success in Japanese quails.
  • Who participated: 480 Japanese quails that were 8 weeks old at the start. The birds were split into 5 groups of 96 birds each, with 3 females for every 1 male. The study lasted 9 weeks.
  • Key finding: Quails fed 20 mg/kg of green silver nanoparticles had significantly better egg production, egg quality, fertility rates, and hatchability compared to all other groups, including those receiving traditional silver nitrate (p < 0.05).
  • What it means for you: If you raise quails or poultry, green silver nanoparticles may offer a natural way to improve productivity and breeding success. However, this research is preliminary and focused on quails specifically—more testing is needed before widespread farm use.

The Research Details

Scientists divided 480 young Japanese quails into five equal groups. One group ate normal feed (the control group), while the other four groups received feed mixed with either green-made silver nanoparticles or traditional silver nitrate at two different doses (10 mg/kg and 20 mg/kg). The researchers tracked egg production, egg quality, how many eggs hatched successfully, and how often male birds showed normal mating behaviors over 9 weeks.

The green silver nanoparticles were made using a natural plant called neem (Azadirachta indica), which is known for having antimicrobial properties. This makes them different from traditional silver nitrate, which is a chemical compound. The researchers wanted to see if the natural approach would work better than the chemical approach.

Each treatment group had six separate replicate pens to ensure the results were reliable and not due to chance. The researchers carefully measured multiple outcomes including how many eggs each bird laid, the thickness and strength of eggshells, how fertile the eggs were, and specific male behaviors like wing flapping and mounting attempts.

This study design is important because it directly compares a natural alternative (green silver nanoparticles) to a commonly used chemical (silver nitrate) in a controlled setting. By testing multiple doses and tracking many different outcomes, the researchers could identify which approach works best and at what amount. This helps farmers and producers make informed decisions about what to feed their birds.

The study used a large sample size (480 birds) divided into multiple groups with repeated measurements, which strengthens the reliability of the findings. The use of six replicate pens per treatment group helps reduce the chance that results happened by accident. However, the study was conducted only on Japanese quails, so results may not apply to other bird species. The research was published in 2026 in a peer-reviewed veterinary journal, indicating it underwent expert review before publication.

What the Results Show

Quails receiving 20 mg/kg of green silver nanoparticles showed the best overall performance. These birds laid more eggs, and the eggs had better quality (stronger shells, better nutritional content) compared to control birds and birds receiving other treatments. The difference was statistically significant, meaning it was unlikely to happen by chance.

Fertility and hatchability rates were highest in the 20 mg/kg green silver nanoparticle group. This means more eggs were successfully fertilized and more chicks hatched compared to other groups. The traditional silver nitrate treatments did not perform as well, even at the same doses.

Male quails in the 20 mg/kg green silver group showed enhanced sexual behaviors including more frequent wing flapping, waltzing (dancing movements), mounting attempts, tidbitting (food-calling behavior to attract females), rear approaches, and treading (the final mating step). These behaviors indicate better reproductive health and mating drive.

Interestingly, the 10 mg/kg dose of green silver nanoparticles showed improvements over the control group, but the 20 mg/kg dose was noticeably better, suggesting there’s an optimal amount for maximum benefit.

The study found that green silver nanoparticles outperformed traditional silver nitrate at both tested doses. Even the lower dose of green silver (10 mg/kg) produced better results than the higher dose of silver nitrate (20 mg/kg) in most measurements. This suggests the natural green synthesis method may make the silver compounds more effective or safer for the birds’ bodies to use.

Previous research has shown that silver compounds can improve poultry health and reproduction, but most studies focused on silver nitrate. This research is among the first to directly compare green-synthesized silver nanoparticles to the traditional chemical form. The findings align with growing interest in natural alternatives for animal agriculture and suggest that plant-based synthesis methods may offer advantages over purely chemical approaches.

This study only tested Japanese quails, so the results may not apply to chickens, turkeys, or other bird species. The experiment lasted only 9 weeks, so we don’t know if benefits continue long-term or if any problems develop with extended use. The study didn’t measure potential safety concerns or how the silver compounds affect the birds’ organs and tissues at the microscopic level. Additionally, the research doesn’t explain exactly why green silver nanoparticles work better than silver nitrate, so the mechanism remains unclear.

The Bottom Line

Based on this research, 20 mg/kg of green silver nanoparticles appears to be an effective dose for improving quail productivity and reproduction (moderate confidence level). However, this finding is preliminary and based on one study in one bird species. Before using this in commercial farming, producers should conduct additional testing on their specific bird populations and consult with veterinarians. The natural green synthesis method shows promise as a safer alternative to chemical silver compounds.

Quail farmers and producers focused on egg production or breeding programs should find this research most relevant. Poultry farmers raising other bird species may be interested but should recognize that results may differ. Pet bird owners and hobbyists might consider this for small-scale operations, but should seek veterinary guidance first. Commercial feed manufacturers may want to explore incorporating green silver nanoparticles into premium products.

Based on this 9-week study, improvements in egg production and quality appeared within the study period. However, realistic expectations for seeing benefits in a real farm setting would likely be 2-4 weeks after starting supplementation, as the birds’ bodies need time to adjust. Long-term effects beyond 9 weeks remain unknown and require further research.

Frequently Asked Questions

What are green silver nanoparticles and how are they different from regular silver compounds?

Green silver nanoparticles are tiny silver particles made using natural plant materials (like neem) instead of chemical processes. This 2026 study found they work better than traditional silver nitrate for improving quail egg production and fertility, possibly because the natural synthesis method makes them more effective for animal bodies.

Can I use green silver nanoparticles for chickens or other poultry besides quails?

This study only tested Japanese quails, so results may not apply to chickens, turkeys, or ducks. Different bird species may respond differently. Consult a veterinarian before using this supplement with other poultry species, as additional research is needed.

How long does it take to see improvements in egg production after adding green silver nanoparticles?

This 9-week study showed improvements within the testing period, but realistic farm results typically appear within 2-4 weeks of starting supplementation. However, long-term effects beyond 9 weeks remain unknown and require further research.

Is 20 mg/kg the right dose for all situations, or could it be different for my birds?

This study found 20 mg/kg optimal for Japanese quails, but individual flocks may respond differently based on age, health, and environmental conditions. Start with veterinary guidance and monitor your specific birds’ response rather than assuming identical results.

Are there any safety concerns with feeding green silver nanoparticles to birds?

This study didn’t measure potential safety concerns or long-term organ effects. While results are promising, consult a veterinarian before use. Additional research on safety, tissue accumulation, and long-term effects is needed before widespread farm adoption.

Want to Apply This Research?

  • Track daily egg production count, egg weight, and shell quality (color, strength, cleanliness) for each flock or group. Record the specific supplement type and dose being used, along with the date started. Compare weekly averages to establish baseline improvements.
  • If using an app to manage poultry operations, set reminders to measure and log egg production daily. Create a simple scoring system for egg quality (1-5 scale for shell strength and appearance). Document any changes in bird behavior, energy levels, or mating activity when starting green silver supplementation.
  • Establish a baseline of current egg production and quality metrics before starting any supplement. After introducing green silver nanoparticles at 20 mg/kg, track metrics weekly for at least 4 weeks to identify trends. Compare results to the baseline and to any control groups (birds not receiving the supplement) to determine if improvements are occurring.

This research is preliminary and was conducted only on Japanese quails. Results may not apply to other bird species or farm conditions. Green silver nanoparticles are not yet approved for use in all countries’ commercial poultry operations. Before using any supplement with your birds, consult with a veterinarian or poultry specialist familiar with your specific situation. This article is for informational purposes only and should not replace professional veterinary advice. Long-term safety and efficacy in commercial settings remain to be established through additional research.

This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.

Source: Comparative Effects of Azadirachta indica-Derived Silver Nanoparticles and Silver Nitrate on the Productive and Reproductive Performance of Japanese Quails.Veterinary medicine and science (2026). PubMed 42429495 | DOI